Calibration of gamma-ray spectrometers coupled to Compton suppression and fast pneumatic systems for the k0-standardized NAA method

2008 ◽  
Vol 278 (3) ◽  
pp. 621-625 ◽  
Author(s):  
H. M. Dung ◽  
M. C. Freitas ◽  
S. Sarmento ◽  
M. Blaauw ◽  
D. Beasley
Keyword(s):  
Gamma Ray ◽  
Compton Suppression

A Compton suppression spectrometer (CSS) for in-beam gamma-ray spectrometry

1979 ◽  
Vol 163 (2-3) ◽  
pp. 395-401 ◽  
Author(s):  
V. Ionescu ◽  
J. Kern ◽  
C. Nordmann ◽  
S. Olbrich ◽  
Ch. Rhême
Keyword(s):  
Gamma Ray ◽  
Compton Suppression ◽  
Gamma Ray Spectrometry

scholarly journals The MULTI spectrometer for measurement of β-decay process in exotic nuclei

2021 ◽  
Vol 253 ◽  
pp. 01003
Author(s):  
Ivan Siváček ◽  
Sergey Stukalov ◽  
Yuri Sobolev ◽  
Dmitry Testov ◽  
Vladimir Smirnov ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Detection Efficiency ◽  
Neutron Emission ◽  
High Volume ◽  
Compton Suppression ◽  
Exotic Nuclei ◽  
Decay Process ◽  
Neutron Counter ◽  
Β Decay ◽  
Suppression Effect

The construction of the portable spectrometer, MULTI, is designed for the measurement of β-γ-neutron coincidences on beams of radioactive exotic nuclei. It will be used in measurements of the β-decay process of neutron-rich nuclei with large Qβ values accessible in radioactive beams facilities. The experimental technique includes the measurement of the ratios between gamma-ray emission and multi-neutron emission, following beta-decay of radioactive nuclei implanted into an active target. The construction of a gamma-ray spectrometer based on high-volume CeBr3+NaI(Tl) phoswich scintillation detectors is introduced. Results of the measurements of its fundamental characteristics – total detection efficiency, peak efficiency and Compton suppression effect with a 60Co source are presented. Design of the neutron counter array, consisting of 40 proportional counters filled with 3He gas, was optimized with Monte Carlo simulations. Results were validated with a 252Cf spectroscopic source, leading to expected detection efficiency of ∼35% for neutrons with energy < 1MeV. Further development plans are discussed.

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