LaBr3(Ce):LaCl3(Ce) Phoswich with pulse shape analysis for high energy gamma-ray and proton identification
Artikel i vetenskaplig tidskrift, 2013
A novel Phoswich design based on new generation scintillator crystals is presented. The detector composed from a combination of a LaBr3(Ce) with a LaCl3(Ce) crystal in one cylinder coupled to a photo multiplier tube has been tested both for incident gamma rays in the range of 0.3–6 MeV, as well as for high energy protons in the range 120–180 MeV. The Phoswich assembly has not significantly deteriorated the energy resolution, which for 662 KeV gamma rays gives a resolution of 4.5%, while for high energy protons (Ep=180 MeV) an energy resolution of 1% was obtained. It is shown that the signals from the two crystals can be separated in an event by event based mode. Using direct digitizing of the detector pulse an off-line pulse-shape analysis was performed built either on a total to tail or total to pulse height method in order to fully identify the incoming radiation. Our aim with this R&D is to in the future build a detector which is able to detect with good efficiency and resolution over a wide energy range; 0.1–30 MeV gamma rays and 20–400 MeV protons. Monte Carlo simulations made in order to design the next prototype are presented.
LaBr 3 (Ce)
Phoswich scintillator
Gamma calorimeter
Pulse shape analysis
LaCl 3 (Ce)
Författare
Olof Tengblad
Thomas Nilsson
Chalmers, Teknisk fysik, Subatomär fysik
E. Nácher
Håkan T Johansson
Chalmers, Teknisk fysik, Subatomär fysik
J. A. Briz
M. Carmona-Gallardo
C. Cruz
V. Gugliermina
A. Perea
J. Sanchez del Rio
M. Turrión Nieves
Johan Bergström
Chalmers, Teknisk fysik, Subatomär fysik
Erik Blomberg
Chalmers, Teknisk fysik, Subatomär fysik
Andreas Bülling
Chalmers, Teknisk fysik, Subatomär fysik
Erik Gallneby
Chalmers, Teknisk fysik, Subatomär fysik
Julius Hagdahl
Chalmers, Teknisk fysik, Subatomär fysik
Linnea Jansson
Chalmers, Teknisk fysik, Subatomär fysik
Klas Jareteg
Chalmers, Teknisk fysik, Subatomär fysik
Robert Masgren
Chalmers, Teknisk fysik, Subatomär fysik
Martin Nordström
Chalmers, Teknisk fysik, Subatomär fysik
Gustav Risting
Chalmers, Teknisk fysik, Subatomär fysik
Shervin Shojaee
Chalmers, Teknisk fysik, Subatomär fysik
Henry Wittler
Chalmers, Teknisk fysik, Subatomär fysik
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
0168-9002 (ISSN)
Vol. 704 0 19-26Ämneskategorier
Acceleratorfysik och instrumentering
Subatomär fysik
Fundament
Grundläggande vetenskaper
DOI
10.1016/j.nima.2012.11.094