Imre Pazsit

Full Professor at Subatomic, High Energy and Plasma Physics

My research is mainly theoretical and computational, but with practical applications, including both the evaluation of measurements and developing new measurement methods. It concerns deterministic and stochastic transport theory of neutral and charged particles, in particular fluctuations in neutron transport and atomic collision cascades; theory of multiplicity in nuclear safeguards; reactor diagnostics based on noise analysis including diagnostics of two-phase flow, and elaboration of inverse methods in neutron noise diagnostics, including machine learning methods.

Source: chalmers.se
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Showing 200 publications

2025

Calculation of the multiplicity moments in nuclear safeguards with forward transport theory

Liliane Barichello, Imre Pazsit
Annals of Nuclear Energy. Vol. 212, p. 1-11
Journal article
2024

On the use of neutron flux gradient with ANNs for the detection of diverted spent nuclear fuel

Moad al-Dbissi, Imre Pazsit, Riccardo Rossa et al
Annals of Nuclear Energy. Vol. 204
Journal article
2024

Theory of neutron multiplicity counting in an energy-dependent transport model

Victor Dykin, Senada Avdic, Imre Pazsit
Proceedings of the International Conference on Physics of Reactors, PHYSOR 2024, p. 380-388
Paper in proceeding
2023

Ringhals Diagnostics and Monitoring, Annual Research Report 2022-2023

Imre Pazsit, Victor Dykin, Henrik Nylén
Report - Subatomic, High Energy and Plasma Physics
2023

Identification of diversions in spent PWR fuel assemblies by PDET signatures using Artificial Neural Networks (ANNs)

Moad al-Dbissi, Riccardo Rossa, Alessandro Borella et al
Annals of Nuclear Energy. Vol. 193
Journal article
2023

The History and Significance of the Klein-Nishina Formula

Imre Pazsit
Springer Proceedings in Mathematics and Statistics. Vol. 429, p. 1-18
Paper in proceeding
2023

Item identification with a space-dependent model of neutron multiplicities and artificial neural networks

Senada Avdic, Victor Dykin, Stephen Croft et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 1057
Journal article
2023

Symmetries and Asymmetries in Branching Processes

Imre Pazsit
Symmetry. Vol. 15 (6)
Review article
2023

Space-Dependent Calculation of the Multiplicity Moments for Shells With the Inclusion of Scattering

Imre Pazsit, Victor Dykin, Flynn Darby
Nuclear Science and Engineering. Vol. 197 (8), p. 2030-2046
Journal article
2023

Ringhals Diagnostics and Monitoring: An overview of 30 years of collaboration 1993 - 2023

Imre Pazsit
Report - Subatomic, High Energy and Plasma Physics
2022

Space-dependent calculation of the multiplicity moments with scattering

Imre Pazsit, Victor Dykin
Transactions of the American Nuclear Society. Vol. 127 (1), p. 391-394
Paper in proceeding
2022

Transport calculations of the multiplicity moments for cylinders

Imre Pazsit, Victor Dykin
Nuclear Science and Engineering. Vol. 196 (3), p. 235-249
Journal article
2022

Space-dependent calculation of the multiplicity moments for shells

Imre Pazsit, Victor Dykin
Proceedings of the International Conference on Physics of Reactors, PHYSOR 2022, p. 1903-1912
Paper in proceeding
2022

Ringhals Diagnostics and Monitoring, Annual Research Report 2021-2022

Imre Pazsit, Luis Alejandro Torres, Cristina Montalvo et al
Report - Subatomic, High Energy and Plasma Physics
2022

Conceptual design and initial evaluation of a neutron flux gradient detector

Moad al-Dbissi, Paolo Vinai, Alessandro Borella et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 1026
Journal article
2021

Lenard Pal (1925-2019) Obituary

Imre Pazsit
Annals of Nuclear Energy. Vol. 154
Other text in scientific journal
2021

Ringhals Diagnostics and Monitoring, Annual Research Report 2020-2021

Imre Pazsit, Luis Alejandro Torres, Cristina Montalvo et al
Report - Chalmers University of Technology
2021

My memories about Lénárd Pál and our collaboration

Imre Pazsit
Annals of Nuclear Energy. Vol. 154
Journal article
2021

LÉNÁRD PÁL - HIS TIME, HIS PROFESSIONAL LIFE, AND REMINISCENCES OF A COLLABORATION

Imre Pazsit
Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2021, p. 1530-1539
Paper in proceeding
2021

EXPERIMENTAL DEMONSTRATION OF NEUTRON FLUCTUATION ANALYSIS BASED ON THE CONTINUOUS SIGNAL OF FISSION CHAMBERS: NEUTRON MULTIPLICITY AND REACTOR NOISE MEASUREMENTS

M. Szieberth, L. Nagy, G. Klujber et al
Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2021, p. 1752-1761
Paper in proceeding
2021

Development of a new method to determine the axial void velocity profile in BWRs from measurements of the in-core neutron noise

Imre Pazsit, Luis Alejandro Torres, Mathieu Hursin et al
Progress in Nuclear Energy. Vol. 138
Journal article
2021

Computational Investigation and Experimental Verification of Multiplicity Counting from the Continuous Signals of Fission Chambers

Lajos Nagy, Gergely Klujber, Tsuyoshi Misawa et al
Report - Chalmers University of Technology
2021

NEW PARADIGM IN NEUTRON FLUCTUATION ANALYSIS: EXTRACTING THE STATISTICS OF DISCRETE DETECTION EVENTS FROM TIME-RESOLVED SIGNALS OF FISSION CHAMBERS

Lajos Nagy, Yasunori Kitamura, Imre Pazsit et al
Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2021, p. 1742-1751
Paper in proceeding
2021

Geometry effects in the transport calculations of the multiplicity moments

Victor Dykin, Imre Pazsit
Transactions of the American Nuclear Society. Vol. 125 (1), p. 754-757
Paper in proceeding
2021

Multiplicity theory beyond the point model

Imre Pazsit, L. Pal
Annals of Nuclear Energy. Vol. 154
Journal article
2020

Measurements and simulations to investigate the feasibility of neutron multiplicity counting in the current mode of fission chambers

Lajos Nagy, Imre Pazsit, Lénárd Pál et al
EPJ Web of Conferences. Vol. 225
Paper in proceeding
2020

A possible application of catastrophe theory to boiling water reactor instability

Imre Pazsit, Victor Dykin, Hidetoshi Konno et al
Progress in Nuclear Energy. Vol. 118
Journal article
2020

Validation of axial void profile measured by neutron noise techniques in crocus

Mathieu Hursin, Oskari Pakari, Gregory Perret et al
International Conference on Physics of Reactors: Transition to a Scalable Nuclear Future, PHYSOR 2020. Vol. 2020-March, p. 1586-1593
Paper in proceeding
2020

Reconstructing the axial void velocity profile in BWRS from measurements of the in-core neutron noise

Imre Pazsit, Mathieu Hursin, Henrik Nylén et al
International Conference on Physics of Reactors: Transition to a Scalable Nuclear Future, PHYSOR 2020. Vol. 2020-March, p. 211-218
Paper in proceeding
2020

Measurement of the Gas Velocity in a Water-Air Mixture in CROCUS Using Neutron Noise Techniques

Mathieu Hursin, Oskari Pakari, Gregory Perret et al
Nuclear Technology. Vol. 206 (10), p. 1566-1583
Journal article
2020

Ringhals Diagnostics and Monitoring, Annual Research Report 2019-2020

Imre Pazsit, Luis Alejandro Torres Delgado, Cristina Montalvo et al
Report - Department of Physics
2020

A random walk in reactor physics and neutron transport

Imre Pazsit
J. Reactor Phys. Section of AESJ. Vol. 72 (3), p. 1-12
Magazine article
2019

Ringhals Diagnostics and Monitoring, Annual Research Report 2018-19

Imre Pazsit, Luis Alejandro Torres Delgado, Cristina Montalvo et al
Report - Chalmers University of Technology
2019

Multiplicity counting using the two- and three point statistics of fission chamber signals – Theory and experimental demonstration

Lajos Nagy, Imre Pazsit, L. Pal et al
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019, p. 2866-2875
Paper in proceeding
2019

Measurement of the gas velocity in a water-air mixture in crocus by neutron noise technique

Mathieu Hursin, Oskari Pakari, Gregory Perret et al
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019, p. 2696-2703
Paper in proceeding
2019

Böhnel multiplicity formulae beyond the point model

Imre Pazsit, L. Pal, Andreas Enqvist
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019, p. 2856-2865
Paper in proceeding
2019

Two- and three-point (in time) statistics of fission chamber signals for multiplicity counting with thermal neutrons

Lajos Nagy, Imre Pazsit, L. Pal
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 929, p. 148-155
Journal article
2018

Upptäckten av kärnklyvning - kvinnliga fysiker i backspegeln

Imre Pazsit, Kim-Ngan Nhu-Tarnawska Hoa
Book
2018

FRACTIONAL LINEAR BIRTH-DEATH STOCHASTIC PROCESS-AN APPLICATION OF HEUN'S DIFFERENTIAL EQUATION

Hidetoshi Konno, Imre Pazsit
Reports on Mathematical Physics. Vol. 82 (1), p. 1-20
Journal article
2018

Multiplicity counting from fission detector signals with time delay effects

Lajos Nagy, Imre Pazsit, L. Pál
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 884, p. 119-127
Journal article
2018

The role of the eigenvalue separation in reactor dynamics and neutron noise theory

Imre Pazsit, Victor Dykin
Journal of Nuclear Science and Technology. Vol. 55 (5), p. 484-495
Journal article
2018

Determination of prompt neutron decay constant by time-domain fluctuation analyses of detector current signals

Yasunori Kitamura, Imre Pazsit, Tsuyoshi Misawa
Annals of Nuclear Energy. Vol. 120, p. 691-706
Journal article
2017

The Inclusion of Photofission, Photonuclear, (n, xn), (n, n ' x gamma), and (n, x gamma) Reactions in the Neutron-Gamma Feynman-Alpha Variance-to-Mean Formalism

Dina Chernikova, Imre Pazsit, A. Favalli et al
Nuclear Science and Engineering. Vol. 185 (1), p. 206-216
Journal article
2017

The extinction probability in systems randomly varying in time

Imre Pazsit, M. M. R. Williams, L. Pal
Nuclear Engineering and Technology. Vol. 49 (6), p. 1301-1309
Journal article
2017

An extended theory of multiplicity counting from fission chamber signals in the current mode

Lajos Nagy, Imre Pazsit, Lénárd Pál
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2017
Paper in proceeding
2017

Fluctuations of the fission energy generated in a multiplying system

L. Pal, Imre Pazsit
Annals of Nuclear Energy. Vol. 99, p. 116-123
Journal article
2017

Ringhals Diagnostics and Monitoring, Annual Research Report 2016-17

Imre Pazsit, Cristina Montalvo, Hoai Nam Tran et al
Report - Chalmers University of Technology
2017

Neutron multiplicity counting moments for fissile mass estimation in scatter-based neutron detection systems

Tony H. Shin, Michael Y. Hua, Matthew J. Marcath et al
Nuclear Science and Engineering. Vol. 188 (3), p. 246-269
Journal article
2017

Note on the extinction probability

Imre Pazsit, L. Pal, M. M.R. Williams
Annals of Nuclear Energy. Vol. 106, p. 271-272
Other text in scientific journal
2017

Kinetics, dynamics, and neutron noise in stationary MSRs

Imre Pazsit, Victor Dykin
Molten Salt Reactors and Thorium Energy, p. 111-166
Book chapter
2017

Worldwide activities

Lyndon Edwards, David LeBlanc, Cyril Rodenburg et al
Molten Salt Reactors and Thorium Energy, p. 635-774
Book chapter
2016

Developments in Core-Barrel Motion Monitoring and Applications to the Ringhals PWR Units

Imre Pazsit, C. Montalvo, H. Nylen et al
Nuclear Science and Engineering. Vol. 182 (2), p. 213-227
Journal article
2016

Remark on the neutron noise induced by propagating perturbations in an MSR

Victor Dykin, Imre Pazsit, Richard Sanchez
Annals of Nuclear Energy. Vol. 90, p. 93-105
Journal article
2016

On the concept of neutron multiplication

Imre Pazsit
Annals of Nuclear Energy. Vol. 90, p. 480-481
Other text in scientific journal
2016

First evidence of the pivotal motion ("tilting mode") of the core Barrel in the RINGHALS-4 PWR

C. Montalvo, Imre Pazsit, H. Nylén et al
Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. Vol. 4, p. 2571-2579
Paper in proceeding
2016

Performance of Higher Order Campbell methods, Part II: calibration and experimental application

Zsolt Elter, G. De Izarra, P. Filliatre et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 835, p. 86-93
Journal article
2016

Energy Correlation of Prompt Fission Neutrons

Zsolt Elter, Imre Pazsit
EPJ Web of Conferences. Vol. 111, p. Art no 05003-
Paper in proceeding
2016

Remark on the applicability of Campbelling techniques for transient signals

Zsolt Elter, Imre Pazsit, C. Jammes
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 813, p. 10-12
Journal article
2016

The effect of the correlation length on the "propagation" neutron noise generated inside a core in light water reactors

Victor Dykin, Imre Pazsit
Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. Vol. 2, p. 1186-1192
Paper in proceeding
2016

The Molten Salt Reactor Point-Kinetic Component of Neutron Noise in Two-Group Diffusion Theory

Victor Dykin, Imre Pazsit
Nuclear Technology. Vol. 193 (3), p. 404-415
Journal article
2016

Self-monitoring fission chamber: Theoretical groundwork

Zsolt Elter, Imre Pazsit, P. Filliatre et al
Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. Vol. 6, p. 3660-3668
Paper in proceeding
2016

Multiplicity counting from fission chamber signals in the current mode

Imre Pazsit, Lénárd Pál, Lajos Nagy
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 839, p. 92-101
Journal article
2016

Performance of Higher Order Campbell methods, Part I: review and numerical convergence study

Zsolt Elter, M. Bakkali, C. Jammes et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 821, p. 66-72
Journal article
2016

Stochastic Theory of the Fission Chamber Current Generated by Non-Poissonian Neutrons

L. Pal, Imre Pazsit
Nuclear Science and Engineering. Vol. 184 (4), p. 537-550
Journal article
2015

The time dependence of the extinction probability with delayed neutrons

M. M. R. Williams, Imre Pazsit
Annals of Nuclear Energy. Vol. 75, p. 107-115
Journal article
2015

The stability of boiling water reactors as a catastrophe phenomenon

Imre Pazsit, Victor Dykin, H. Konno et al
Mathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015, Nashville, United States, 19-23 April 2015. Vol. 1, p. 763-774
Paper in proceeding
2015

Performance investigation of the pulse and Campbelling modes of a fission chamber using a Poisson pulse train simulation code

Zsolt Elter, C. Jammes, Imre Pazsit et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 774, p. 60-67
Journal article
2015

Ringhals Diagnostics and Monitoring, Annual Research Report 2015

Victor Dykin, Cristina Montalvo, Hoai Nam Tran et al
Report - Chalmers University of Technology
2015

Energy correlations of prompt fission neutrons in the laboratory frame

Imre Pazsit, Zsolt Elter
Mathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015, Nashville, United States, 19-23 April 2015. Vol. 2, p. 1158-1167
Paper in proceeding
2015

The effect of capture gammas, photofission and photonuclear neutrons to the neutron-gamma Feynman variance-to-mean ratios (neutron, gamma and total)

Dina Chernikova, Imre Pazsit, S. Croft et al
Mathematics and Computations, Supercomputing in Nuclear Applications and Monte Carlo International Conference, M and C+SNA+MC 2015, Nashville, United States, 19-23 April 2015. Vol. 2, p. 1040-1051
Paper in proceeding
2015

The dynamic adjoint as a Green's function

Imre Pazsit, Victor Dykin
Annals of Nuclear Energy. Vol. 86 (Special Issue), p. 29-34
Journal article
2015

Investigation of the ex-core noise induced by fuel assembly vibrations in the Ringhals-3 PWR

Hoai Nam Tran, Imre Pazsit, Henrik Nylén
Annals of Nuclear Energy. Vol. 80, p. 434-446
Journal article
2015

The neutron-gamma Feynman variance to mean approach: Gamma detection and total neutron-gamma detection (theory and practice)

Dina Chernikova, Kåre Axell, S. Avdic et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 782, p. 47-55
Journal article
2015

Campbelling-type theory of fission chamber signals generated by neutron chains in a multiplying medium

L. Pal, Imre Pazsit
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 794, p. 90-101
Journal article
2014

Nils Göran Sjöstrand (1925-2014)

Imre Pazsit
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 752, p. VII-VIII
Magazine article
2014

Calculation of the Neutron Noise Induced by Periodic Deformations of a Large Sodium-Cooled Fast Reactor Core

Florian Zylbersztejn, Hoai Nam Tran, Imre Pazsit et al
Nuclear Science and Engineering. Vol. 177 (2), p. 203-218
Journal article
2014

Qualitative and quantitative investigation of the propagation noise in various reactor systems

Victor Dykin, Anders Jonsson, Imre Pazsit
Progress in Nuclear Energy. Vol. 70, p. 98-111
Journal article
2014

REFINED METHOD FOR SURVEILLANCE AND DIAGNOSTICS OF THE CORE BARREL VIBRATIONS OF THE RINGHALS PWRs

Imre Pazsit, Henrik Nylén, Cristina Montalvo Martín
Proceedings of the International Conference on Physics of Reactors, PHYSOR 2014
Paper in proceeding
2014

Comments on the stochastic characteristics of fission chamber signals

L. Pal, Imre Pazsit, Zsolt Elter
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 763, p. 44-52
Journal article
2014

Ringhals Diagnostics and Monitoring, Final Research Report 2012-2014

Victor Dykin, Cristina Montalvo, Henrik Nylén et al
Report - Chalmers University of Technology
2014

Composite fractional time evolutions of cumulants in fractional generalized birth processes

H. Konno, Imre Pazsit
Advanced Studies in Theoretical Physics (5), p. 195-213
Journal article
2014

The role of the eigenvalue separation in reactor dynamics and neutron noise theory

Imre Pazsit, Victor Dykin
Proceedings of the International Conference on Physics of Reactors, PHYSOR 2014
Paper in proceeding
2014

Remark on the neutron noise by propagating perturbations in a MSR

Victor Dykin, Imre Pazsit, Richard Sanchez
Proceedings of the International Conference on Physics of Reactors, PHYSOR 2014
Paper in proceeding
2014

The point kinetic component of neutron noise in an MSR

Imre Pazsit, Victor Dykin, Richard Sanchez
Annals of Nuclear Energy. Vol. 64, p. 344-352
Journal article
2014

The two-group point-kinetic component of neutron noise in a MSR

Victor Dykin, Imre Pazsit
Proceedings of the International Conference on Physics of Reactors, PHYSOR 2014
Paper in proceeding
2014

A general analytical solution for the variance-to-mean Feynman-alpha formulas for a two-group two-point, a two-group one-point and a one-group two-point cases

Dina Chernikova, Wang Ziguan, Imre Pazsit et al
European Physical Journal Plus. Vol. 129 (11), p. Art. no. 259-
Journal article
2013

Pulse shape discrimination of neutrons and gamma rays using Kohonen artificial neural networks

Tatiani Tampouratzi, Dina Chernikova, Imre Pazsit
Journal of Artificial Intelligence and Soft Computing Research. Vol. 3 (2), p. 77-88
Journal article
2013

Application of the two-group - one-region and two-region - one-group Feynman-alpha formulas in safeguards and accelerator-driven system (ADS)

Dina Chernikova, Imre Pazsit, Wang Ziguan
Proceeding of ESARDA meeting 2013
Paper in proceeding
2013

A Comparison of Artificial Neural Network Performance: the Case of Neutron/Gamma Pulse Shape Discrimination

Tatiani Tampouratzi, Dina Chernikova, Imre Pazsit
IEEE Symposium on Computational Intelligence for Security and Defense Applications (CISDA), p. 88-95
Paper in proceeding
2013

The point kinetic component of neutron noise in an MSR

Imre Pazsit, Victor Dykin
Transactions of the American Nuclear Society. Vol. 108, p. 912-914
Paper in proceeding
2013

Derivation of two-group two-region Feynman-alpha formulas and their application to Safeguards and accelerator-driven system (ADS)

Dina Chernikova, Imre Pazsit, L. Pal et al
Proceeding of INMM 54th Annual Meeting
Paper in proceeding
2013

A direct method for evaluating the concentration of boric acid in a fuel pool using scintillation detectors for joint-multiplicity measurements

Dina Chernikova, Kåre Axell, Imre Pazsit et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 714, p. 90-97
Journal article
2013

Testing a direct method for evaluating the concentration of boron in a fuel pool using scintillation detectors, and a 252Cf and an 241Am-Be source

Dina Chernikova, Kåre Axell, Imre Pazsit et al
Proceeding of ESARDA meeting 2013
Paper in proceeding
2013

Theory of particle detection and multiplicity counting with dead time effects

L. Pal, Imre Pazsit
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2013. Vol. 1, p. 475-486
Paper in proceeding
2013

Ringhals Diagnostics and Monitoring, Annual Research Report 2013

Victor Dykin, Cristina Montalvo Martin, Henrik Nylén et al
Report
2013

On the dependence of the noise amplitude on the correlation length of inlet temperature fluctuations in PWRs

Florian Zylbersztejn, Hoai Nam Tran, Imre Pazsit et al
Annals of Nuclear Energy. Vol. 57, p. 134-141
Journal article
2012

Numerical simulation of the two phase flow and investigation of the induced neutron noise

Victor Dykin, Imre Pazsit
Transactions of the American Nuclear Society. Vol. 106, p. 919-921
Paper in proceeding
2012

Ringhals Diagnostics and Monitoring, Annual Research Report 2012

Victor Dykin, Cristina Montalvo Martín, Henrik Nylén et al
Report
2012

Testing of small detectors with glass rod light guides for multiplicity measurement purposes

Dina Chernikova, Imre Pazsit, Anders Nordlund et al
Proceedings of The 53nd Annual Meeting of the Institute of Nuclear Materials Management
Other conference contribution
2012

Analytical investigation of the properties of the neutron noise induced by vibrating absorber and fuel rods

Anders Jonsson, Hoai Nam Tran, Victor Dykin et al
Kerntechnik. Vol. 77 (5), p. 371-380
Journal article
2012

Simulation of in-core neutron noise measurements for axial void profile reconstruction in boiling water reactors

Victor Dykin, Imre Pazsit
Nuclear Technology. Vol. 3 (3), p. 354-366
Paper in proceeding
2012

On some problems in the counting statistics of nuclear particles Investigation of the dead time problems

L. Pal, Imre Pazsit
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 693, p. 26-50
Journal article
2012

Surveillance and diagnostics of the beam mode vibrations of the ringhals PWRs

C.M. Martín, Imre Pazsit, Henrik Nylén
International Conference on the Physics of Reactors 2012, PHYSOR 2012: Advances in Reactor Physics. Vol. 2, p. 1620-1631
Paper in proceeding
2012

Analytical solutions of the molten salt reactor equations

Imre Pazsit, Anders Jonsson, L. Pal
Annals of Nuclear Energy. Vol. 50, p. 206-214
Journal article
2012

Two-point theory for the differential self-interrogation Feynman-alpha method

Johan Anderson, Dina Chernikova, Imre Pazsit et al
European Physical Journal Plus. Vol. 127 (8), p. 1-9
Journal article
2012

Derivation and quantitative analysis of the differential self-interrogation Feynman-alpha method

Johan Anderson, L. Pal, Imre Pazsit et al
European Physical Journal Plus. Vol. 127 (2), p. 1-6
Journal article
2012

Two-Group Theory of the Feynman-Alpha Method for Reactivity Measurement in ADS

L. Pal, Imre Pazsit
Science and Technology of Nuclear Installations. Vol. 2012, p. Art. no. 620808-
Journal article
2011

Derivation and quantitative analysis of the differential self-interrogation Feynman-alpha method

Johan Anderson, Pal Lenard, Imre Pazsit et al
Proceedings 52nd INMM Conference 17-21 July, Palm Desert, CA, USA (2011)
Paper in proceeding
2011

Final Report on the Research Project Ringhals Diagnostics and Monitoring Stage 14

Imre Pazsit, Cristina Montalvo Martín, Victor Dykin et al
Report
2011

Two-group theory of neutron noise in Molten Salt Reactors

Anders Jonsson, Imre Pazsit
Annals of Nuclear Energy. Vol. 38 (6), p. 1238-1251
Journal article
2011

Stochastic Invariant Imbedding Theory for a Distributed Internal Source

S. B. Degweker, Imre Pazsit
Nuclear Science and Engineering. Vol. 168 (3), p. 248-264
Journal article
2011

Kinetic aspects of neutron noise in molten salt reactors, invited

Imre Pazsit, Anders Jonsson
Transactions of the American Nuclear Society. Vol. 104, p. 850-851
Other conference contribution
2011

On the Feynman-alpha formula for fast neutrons

Johan Anderson, Pal Lenard, Imre Pazsit
Proceedings 33rd ESARDA 16-20 May, Budapest, Hungary (2011)
Paper in proceeding
2011

Application of noise analysis in nuclear safeguards and in the diagnostics of current and future reactor systems

Imre Pazsit
3rd International Conference on Current Problems in Nuclear Physics and Atomic Energy, NPAE 2010; Kyiv; Ukraine; 7 June 2010 through 12 June 2010, p. 56-63
Paper in proceeding
2011

Reactor Kinetics, Dynamic Response, and Neutron Noise in Molten Salt Reactors

Imre Pazsit, Anders Jonsson
Nuclear Science and Engineering. Vol. 167, p. 61-76
Journal article
2011

A special branching process with two particle types

L. Pal, Imre Pazsit
European Physical Journal Plus. Vol. 126 (2), p. 1-26
Journal article
2011

Neutron noise calculations using the Analytical Nodal Method and comparisons with analytical solutions

Viktor Larsson, Christophe Demaziere, Imre Pazsit et al
Annals of Nuclear Energy. Vol. 38 (4), p. 808-816
Journal article
2010

Sample characterization using both neutron and gamma multiplicities

Andreas Enqvist, Imre Pazsit, Senada Avdic
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 615 (1), p. 62-69
Journal article
2010

Calculation of the light pulse distributions induced by fast neutrons in organic scintillation detectors

Andreas Enqvist, Imre Pazsit
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 618 (1-3), p. 266-274
Journal article
2010

A general regression artificial neural network for two-phase flow regime identification

Tatiani Tampouratzi, Imre Pazsit
Annals of Nuclear Energy. Vol. 37 (5), p. 672-680
Journal article
2010

Initial Evaluation for a Combined Neutron and Gamma 1 Ray Multiplicity Counter

Andreas Enqvist, Sara Pozzi, M. Flaska et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 621 (1-3), p. 493-497
Journal article
2010

A fuzzy inference system for two-phase flow regime identification from radiography images

Tatiani Tampouratzi, Imre Pazsit
International Journal of Nuclear Energy Science and Technology. Vol. 5 (4), p. 321-334
Journal article
2010

Diagnostics of core barrel and fuel assembly vibrations in the Swedish Ringhals PWRs

Imre Pazsit, C. Montalvo-Martín, Augusto Hernandéz Solís et al
7th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies 2010, NPIC and HMIT 2010, Las Vegas, NV; 7 November 2010 through 11 November 2010. Vol. 2, p. 833-844
Paper in proceeding
2010

Investigation of the space-dependent noise induced by propagating perturbations

Imre Pazsit, Victor Dykin
Annals of Nuclear Energy. Vol. 37 (10), p. 1329-1340
Journal article
2010

Reactor kinetics, dynamic response and neutron noise in molten salt reactors

Imre Pazsit, Anders Jonsson
International Conference on the Physics of Reactors 2010, PHYSOR 2010. Vol. 2, p. 979-999
Other conference contribution
2010

Theory of the Feynman- and Rossi-alpha methods in two energy groups

L. Pal, Imre Pazsit
Transactions of the American Nuclear Society. Vol. 103, p. 321-322
Paper in proceeding
2010

Stochastic aspects of neutron slowing down processes

L. Pal, Imre Pazsit
Physica Scripta. Vol. 82 (1)
Journal article
2010

Noise Techniques in Nuclear Systems

Imre Pazsit, Christophe Demaziere
Handbook of Nuclear Engineering, p. 1629-1737
Book chapter
2010

Determination of the subcriticality level using the Cf-252 source-detector method

P. Baeten, A. Lafuente, J. Janssens et al
Annals of Nuclear Energy. Vol. 37 (5), p. 740-752
Journal article
2010

Final Report on the Research Project Ringhals Diagnostics and Monitoring Stage 13

Imre Pazsit, Cristina Montalvo Martín, Victor Dykin et al
Report
2010

Investigation of the space-dependent noise induced by propagating density fluctuations

Victor Dykin, Imre Pazsit
International Conference on the Physics of Reactors 2010, PHYSOR 2010. Vol. 2, p. 963-978
Other conference contribution
2009

Numerical tools applied to power reactor noise analysis

Christophe Demaziere, Imre Pazsit
Progress in Nuclear Energy. Vol. 51 (1), p. 67 - 81
Journal article
2009

The Detection Statistics of Neutrons and Photons Emitted from a Fissile Sample.

Andreas Enqvist, Sara Pozzi, Imre Pazsit
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 607 (2), p. 451-457
Journal article
2009

Non-invasive on-line two-phase flow regime identification employing artificial neural networks

Tatiani Tampouratzi, Imre Pazsit
Annals of Nuclear Energy. Vol. 36 (4), p. 464 - 469
Journal article
2009

Extension of the invariant embedding method for the calculation of particle fluctuations

S. B. Degweker, Imre Pazsit
International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009; Saratoga Springs, NY; United States; 3 May 2009 through 7 May 2009. Vol. 2, p. 925-938
Paper in proceeding
2009

Combined use of neutron and gamma multiplicities for determining sample parameters

Imre Pazsit, Andreas Enqvist, Senada Avdic
; Code 79136 Combined use of neutron and gamma multiplicities for determining sample parameters(Conference Paper) Pázsit, I.Email Author, Enqvist, A.Email Author, Avdic, S. View Correspondence (jump link) Department of Nuclear Engineering, Chalmers University of Technology, SE-41296, Göteborg, Sweden Abstract View references (10) Expressions for neutron and gamma factorial moments are known in the literature. For neutrons, these served as the basis of constructing analytic expressio. Vol. 2, p. 981-992
Paper in proceeding
2009

Fuzzy inference systems for efficient non-invasive on-line two-phase flow regime identification

Tatiani Tampouratzi, Imre Pazsit
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 5495 LNCS, p. 423-429
Paper in proceeding
2009

Stochastic equations in the invariant imbedding formulation of particle transport

Shashikant Degweker, Imre Pazsit
Annals of Nuclear Energy. Vol. 36 (8), p. 1108-1119
Journal article
2009

Remark on the role of the driving force in BWR instability

Victor Dykin, Imre Pazsit
Annals of Nuclear Energy. Vol. 36 (10), p. 1544-1552
Journal article
2009

Unfolding sample parameters from neutron and gamma multiplicities using artificial neural networks.

Senada Avdic, Andreas Enqvist, Imre Pazsit
ESARDA Bulletin (43), p. 21-29
Journal article
2009

The fast fission factor revisited

L. Pal, Imre Pazsit
Nuclear Science and Engineering. Vol. 161 (1), p. 111 - 118
Journal article
2009

A note on the multiplicity expressions in nuclear safeguards.

Imre Pazsit, Andreas Enqvist, L. Pal
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 603 (3), p. 541-544
Journal article
2008

Some properties of zero power neutron noise in a time-varying medium with delayed neutrons

Yasunori Kitamura, L. Pal, Imre Pazsit et al
Annals of Nuclear Energy. Vol. 35 (9), p. 1621-1627
Journal article
2008

Non-invasive on-line two-phase flow regime identification

Tatiani Tampouratzi, Imre Pazsit
Computational Intelligence in Decision and Control - 8th International FLINS Conference; Madrid; Spain; 21 September 2008 through 24 September 2008, p. 453-458
Paper in proceeding
2008

Final Report on the Research Project Ringhals Diagnostics and Monitoring, Stage 12

Imre Pazsit, Christophe Demaziere, Carl Sunde et al
Report
2007

The discovery of nuclear fission : women scientists in highlight

Kim-Ngan Nhu-Tarnawska Hoa, Imre Pazsit
Book
2007

Wavelet techniques for the determination of the decay ratio in boiling water reactors

Carl Sunde, Imre Pazsit
Kerntechnik. Vol. 72 (1-2), p. 7-19
Journal article
2007

Monte Carlo and analytical models of neutron detection with organic scintillation detectors

Sara Pozzi, M. Flaska, Andreas Enqvist et al
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 582 (2), p. 629-637
Journal article
2007

Calculation of higher moments of the neutron multiplication process in a time-varying medium

Yasunori Kitamura, Imre Pazsit, A Yamamoto et al
Annals of Nuclear Energy. Vol. 34 (5), p. 385-395
Journal article
2007

Investigation of the validity of the point-kinetic approximation and of the break-frequency method in 2-D subcritical systems

Carl Sunde, Christophe Demaziere, Imre Pazsit
Joint International Topical Meeting on Mathematics & Computation and Supercomputing in Nuclear Applications, Monterey April 15-19, 2007
Other conference contribution
2007

Theory of neutron noise in a temporally fluctuating multiplying medium

L. Pal, Imre Pazsit
Nuclear Science and Engineering. Vol. 155 (3), p. 425-440
Journal article
2007

Investigation of the validity of the point-kinetic approximation and of the break-frequency method in 2-D subcritical systems

Carl Sunde, Christophe Demaziere, Imre Pazsit
Proc. Joint Int. Topl. Mtg. Mathematics & Computation and Supercomputing in Nuclear Applications (M & C + SNA 2007)
Paper in proceeding
2007

Invariant-embedding and cognate kinetic descriptions of particle reflection/emission from surfaces

L. G. Glazov, Imre Pazsit
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. Vol. 256 (2), p. 638-658
Journal article
2007

Final Report on the Research Project Ringhals Diagnostics and Monitoring Stage 11

Carl Sunde, Christophe Demaziere, Imre Pazsit
Report
2006

The number distribution of neutrons and gamma photons generated in a multiplying sample

Andreas Enqvist, Imre Pazsit, Sara Pozzi
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 566 (2), p. 598-608
Journal article
2006

Benchmarking the invariant embedding method against analytical solutions in model transport problems

Malin Wahlberg, Imre Pazsit
Nuclear Technology and Radiation Protection. Vol. 21 (2), p. 3 - 13
Journal article
2006

Calculation of the Neutron Noise Induced by Shell-Mode Core-Barrel Vibrations in a 1-D, Two-Group, Two-Region Slab Reactor Model

Carl Sunde, Christophe Demaziere, Imre Pazsit
Nuclear Technology. Vol. 154 (2), p. 129-141
Journal article
2006

Neutron fluctuations in a multiplying medium randomly varying in time

L. Pal, Imre Pazsit
Physica Scripta. Vol. 74 (1), p. 62-70
Journal article
2006

Neutron kinetics in subcritical cores with application to the source modulation method

Johanna Wright, Imre Pazsit
Annals of Nuclear Energy. Vol. 33 (2), p. 149-158
Journal article
2006

The Number Distribution and Factorial Moments of Neutrons and Gamma Photons Generated in a Multiplying Sample

Andreas Enqvist, Imre Pazsit, Sara Pozzi
JNMM, Journal of the Institute of Nuclear Materials Management. Vol. XXXV (1), p. 29 - 35
Journal article
2006

The Statistics of the Number of Neutron Collisions prior to Absorption

Sara A. Pozzi, Imre Pazsit
Nuclear Science and Engineering. Vol. 153 (1), p. 60 - 68
Journal article
2006

Calculation of the stochastic pulsed Rossi-alpha formula and its experimental verification

Yasunori Kitamura, K. Taguchi, T Misawa et al
Progress in Nuclear Energy. Vol. 48 (1), p. 37-50
Journal article
2006

Numerical tools applied to power reactor noise analysis

Christophe Demaziere, Imre Pazsit
Proc. 5th Int. Topl. Mtg. Nuclear Plant Instrumentation, Controls, and Human Machine Interface Technology (NPIC&HMIT 2006), Albuquerque, New Mexico, USA, November 12-16, 2006, American Nuclear Society
Paper in proceeding
2006

Neutron Slowing Down in a Detector with Absorption

Sara Pozzi, Imre Pazsit
Nuclear Science and Engineering. Vol. 154 (3), p. 367 - 373
Journal article
2006

Investigation of detector tube impacting in the BWR Ringhals-1

Carl Sunde, Imre Pazsit
International Journal of Nuclear Energy Science and Technology. Vol. 2 (3), p. 189-208
Journal article
2005

Investigation of the validity of the point-kinetic approximation for subcritical heterogeneous systems in 2-group diffusion theory for measurement of the reactivity in ADS

Christophe Demaziere, Imre Pazsit, Johanna Wright
Proc. Int. Conf. Nuclear Energy Systems for Future Generation and Global Sustainability (GLOBAL2005)
Paper in proceeding
2005

On the possibility of the space-dependence of the stability indicator (decay ratio) of a BWR

Christophe Demaziere, Imre Pazsit
Annals of Nuclear Energy. Vol. 32 (12), p. 1305-1322
Journal article
2005

Final Report on the Research Project Ringhals Diagnostics and Monitoring, Stage 10

Carl Sunde, Johanna Wright, Christophe Demaziere et al
Report
2005

Investigation of the neutron noise induced by shell-mode core-barrel vibrations

Carl Sunde, Christophe Demaziere, Imre Pazsit
Proceeding of International Topical Meeting on Mathematics and Computation, Supercomputing, Reactor Physics and Nuclear and Biological Applications, American Nulcear Society, Avignon, France, September 12-15, 2005
Paper in proceeding
2005

Derivation of pulsed Feynman- and Rossi-alpha formulae including delayed neutrons

Yasunori Kitamura, Imre Pazsit, Johanna Wright et al
Annals of Nuclear Energy. Vol. 32 (7), p. 671-692
Journal article
2005

Classification of two-phase flow regimes via image analysis and a neuro-wavelet approach

Carl Sunde, Senada Avdic, Imre Pazsit
Progress in Nuclear Energy. Vol. 46 (3-4), p. 348-358
Journal article
2005

Gamma Multiplicities in a Multiplying Sample for the Assay of Nuclear Materials

Imre Pazsit, Sara A. Pozzi
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 555 A (1-2), p. 340-346
Journal article
2005

Calculation of the pulsed Feynman-alpha formulae and their experimental verification

Imre Pazsit, Yasunori Kitamura, Johanna Wright et al
Annals of Nuclear Energy. Vol. 32 (9), p. 986-1007
Journal article
2005

Analysis of heartbeat data with spectral and fractal techniques

Imre Pazsit
Fluctuation and Noise Letters. Vol. 5 (3), p. L357-L363
Journal article
2005

Final Report on the Research Project Ringhals Diagnostics and Monitoring, Stage 9

Christophe Demaziere, Carl Sunde, Imre Pazsit
Report
2004

Development of a method for measuring the MTC by noise analysis and its experimental verification in Ringhals-2

Christophe Demaziere, Imre Pazsit
Nuclear Science and Engineering. Vol. 148 (1), p. 1-29
Journal article
2004

Classification of Two-Phase Flow Regimes via Image Analysis by a Neuro-Wavelet Approach

Carl Sunde, Senada Avdic, Imre Pazsit
Applied Computational Intelligence, Proceedings of the 6th International FLINS Conference, p. 236-239
Paper in proceeding
2003

Determination of the MTC by noise analysis methods

Christophe Demaziere, Imre Pazsit
Proc. Annual Mtg. Nuclear Technology 2003 (JK2003)
Paper in proceeding
2003

Study of the MTC estimation by noise analysis in 2-D heterogeneous systems

Christophe Demaziere, Imre Pazsit
Progress in Nuclear Energy. Vol. 43 (1-4), p. 313-319
Journal article
2003

Development and application of core diagnostics and monitoring for the Ringhals PWRs

Tell Andersson, Christophe Demaziere, Albert Nagy et al
Progress in Nuclear Energy. Vol. 43 (1-4), p. 35-41
Journal article
2003

Analysis of an MTC noise measurement performed in Ringhals-2 using gamma-thermometers and in-core neutron detectors

Christophe Demaziere, Imre Pazsit, Tell Andersson et al
Progress in Nuclear Energy. Vol. 43 (1-4), p. 57-66
Journal article
2003

A phenomenological model for the explanation of a strongly space-dependent Decay Ratio

Christophe Demaziere, Imre Pazsit
Proc. Int. Mtg. Nuclear Mathematical and Computational Sciences (M&C2003)
Paper in proceeding
2003

Final Report on the Research Project Ringhals Diagnostics and Monitoring, Stage 8

Christophe Demaziere, Carl Sunde, Vasily Arzhanov et al
Report
2002

Evaluation of the boron dilution method for Moderator Temperature Coefficient measurements

Christophe Demaziere, Imre Pazsit, Gabor Pór
Nuclear Technology. Vol. 140 (1), p. 147-163
Journal article
2002

Development of a method for measuring the MTC by noise analysis and its experimental verification in Ringhals-2

Christophe Demaziere, Imre Pazsit
Proc. Int. Mtg. New Frontiers of Nuclear Technology: Reactor Physics, Safety and High-Performance Computing (PHYSOR2002)
Paper in proceeding
2002

Theoretical investigation of the MTC noise estimate in 1-D homogeneous systems

Christophe Demaziere, Imre Pazsit
Annals of Nuclear Energy. Vol. 29 (1), p. 75-100
Journal article
2001

2-D 2-group neutron noise simulator and its application to anomaly localisation

Christophe Demaziere, Imre Pazsit
Proc. Int. Mtg. Mathematical Methods for Nuclear Applications (M&C2001)
Paper in proceeding
2000

Estimation of the Moderator Temperature Coefficient (Analysis of an MTC measurement using boron dilution method)

Christophe Demaziere, Imre Pazsit, Gabor Pór
Proc. Int. Topl. Mtg. Nuclear Plant Instrumentation, Controls, and Human-Machine Interface Technologies (NPIC&HMIT 2000)
Paper in proceeding
2000

Theory of neutron noise induced by spatially randomly distributed noise sources

Christophe Demaziere, Imre Pazsit
Proc. Int. Mtg. Advances in Reactor Physics and Mathematics and Computation into the Next Millennium (PHYSOR2000)
Paper in proceeding
2000

Theoretical investigation of the MTC noise estimate in 1-D homogeneous systems

Christophe Demaziere, Imre Pazsit
Proc. 28th Informal Mtg. Reactor Noise (IMORN-28)
Paper in proceeding

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Showing 6 research projects

2016–2017

Kompetensstöd inom nukleär icke-spridning

Imre Pazsit Subatomic and Plasma Physics
The Swedish Radiation Safety authority (SSM)

2014–2016

Research in nuclear safeguards

Imre Pazsit Nuclear Engineering
Dina Chernikova Nuclear Engineering
Kåre Axell Nuclear Engineering
The Swedish Radiation Safety authority (SSM)

2013–2017

Preparing ESNII for HORIZON 2020 (ESNII PLUS)

Zsolt Elter Nuclear Engineering
Imre Pazsit Nuclear Engineering
European Commission (EC)

2012–2016

Core physics, diagnostics and instrumentation for enhanced safety of the sodium cooled fast reactor ASTRID

Imre Pazsit Nuclear Engineering
Zsolt Elter Nuclear Engineering
Swedish Research Council (VR)

2011–2016

Fast Reactor Experiments for hYbrid Applications (FREYA)

Imre Pazsit Nuclear Engineering
Syed F Naeem Nuclear Engineering
Dina Chernikova Nuclear Engineering
European Commission (EC)

1995–2023

Ringhals Diagnostics and Monitoring

Imre Pazsit Subatomic, High Energy and Plasma Physics
Henrik Nylén Unknown organization
Ringhals AB

6 publications exist
There might be more projects where Imre Pazsit participates, but you have to be logged in as a Chalmers employee to see them.