Proton in-beam tests of the Lund R3B calorimeter prototype
Artikel i vetenskaplig tidskrift, 2009

A small-scale prototype of the CALIFA calorimeter, which is a subsystem of the R 3 B detector, has been constructed and tested using the 179 MeV proton beam at The Svedberg Laboratory, Uppsala, Sweden. The prototype consists of 15 CsI(Tl) elements with a size of 10 × 30 × 130 mm 3 , assembled in a 3 × 5 array. Each crystal was individually tested using γ -ray sources and the light output uniformity along the longitudinal axes was adjusted to better than 0.6%. An energy resolution of ∼ 0.5 % has been achieved with a technique consisting of non-uniform polishing/lapping of the crystal side facets. The performance of the prototype is evaluated using experimental data and GEANT4 simulations. Results from the experiment, including multiplicity and sum spectra, show good agreement with simulations. The quality requirements for CsI(Tl) elements for construction of a high precision calorimeter/spectrometer are summarized. © 2009 Elsevier B.V. All rights reserved.

Författare

D.D. DiJulio

Lunds universitet

V. Avdeichikov

Joint Institute for Nuclear Research

Lunds universitet

J. Cederkall

Lunds universitet

P. Golubev

Lunds universitet

B. Jakobsson

Lunds universitet

Håkan T Johansson

Chalmers, Teknisk fysik, Subatomär fysik

C. Tintori

R and D Division - CAEN SpA

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

0168-9002 (ISSN)

Vol. 612 127-132

Ämneskategorier

Subatomär fysik

DOI

10.1016/j.nima.2009.09.131