npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041


Research Paper

New Physics: Sae Mulli 2017; 67: 708-713

Published online June 30, 2017

Copyright © New Physics: Sae Mulli.

Performance of a Prototype CsI Detector for the Low-Energy LAMPS System by Using Different Gamma-Ray Sources

Jaebeom PARK1, Byungsik HONG1, Hanseul LEE2, Gyunghwan BAK2, Jeonghyeok PARK2, Dong Ho MOON*2

1 Department of Physics, Korea University, Seoul 02841, Korea
2 Department of Physics, Chonnam National University, Gwangju 61186, Korea


Received: March 21, 2017; Revised: April 19, 2017; Accepted: April 25, 2017

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


A Large-Acceptance Multipurpose Spectrometer (LAMPS) will be essential for studying nuclear symmetry energy at the rare isotope beam facility, RAON, in Korea. According to the conceptual design of the LAMPS, a Si-CsI detector system will be used for identifying the charged particles produced in nuclear collisions. The CsI detector will be used particularly for the measurement of photons. In this work, the prototype CsI detector was tested using radioactive gamma sources, and the simulations using the GEANT4 simulation toolkit were performed. The energy resolutions estimated from the full width at half maximum (FWHM) of the energy spectra were found to be 8.4 and 7.9\%, respectively, for the 1.17- and the 1.33-MeV gamma-rays from the $^{60}$Co source

Keywords: RAON, LAMPS, Si-CsI, Crystal detector, Gamma ray

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