Design of a prompt-gamma neutron activation analysis system on China Advanced Research Reactor

LOW ENERGY ACCELERATOR AND RADIATION APPLICATIONS

Design of a prompt-gamma neutron activation analysis system on China Advanced Research Reactor

SUN Hongchao，

NI Bangfa，

XIAO Caijin，

ZHANG Guiying，

LIU Cunxiong，

HUANG Jinfeng

Nuclear Science and Techniques

Vol.22, No.5

pp.287-292

Published in print 20 Oct 2011

DOI：10.13538/j.1001-8042/nst.22.287-292

50200

In this paper, computational methods are used to optimize the design of a prompt-gamma neutron activation analysis (PGNAA) system on China Advanced Research Reactor (CARR). Approaches are adopted for obtaining accurate neutron beam parameter and saving the computing time. For the radiation shielding design, the optimizing factors include the cost, weight, volume, machining convenience and background radiation at the detector position. Low background spectrum and high sensitivity are expected. The simulation results, and experiences from international PGNAA community, were used in the design of the CARR PGNAA system.

Prompt gamma activation analysisPGAA FacilityNeutron Cross-sectionShielding

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