| Literature DB >> 26242556 |
Zizhu Zhang1, Yizheng Chong2, Xinru Chen2, Congjun Jin1, Lijun Yang1, Tong Liu3.
Abstract
A prompt gamma neutron activation analysis (PGNAA) system has been recently developed at the 30-kW research reactor In-Hospital Neutron Irradiator (IHNI) in Beijing. Neutrons from the specially designed thermal neutron beam were used. The thermal flux of this beam is 3.08×10(6) cm(-2) s(-1) at a full reactor power of 30 kW. The PGNAA system consists of an n-type high-purity germanium (HPGe) detector of 40% efficiency, a digital spectrometer, and a shielding part. For both the detector shielding part and the neutron beam shielding part, the inner layer is composed of (6)Li2CO3 powder and the outer layer lead. The boron-10 sensitivity of the PGNAA system is approximately 2.5 cps/ppm. Two calibration curves were produced for the 1-10 ppm and 10-50 ppm samples. The measurement results of the control samples were in accordance with the inductively coupled plasma atomic emission spectroscopy (ICP-AES) results.Entities:
Keywords: BNCT; Boron concentration; IHNI; PGNAA
Mesh：
Substances：
Year: 2015 PMID： 26242556 DOI： 10.1016/j.apradiso.2015.07.049
Source DB: PubMed Journal: Appl Radiat Isot ISSN： 0969-8043 Impact factor: 1.513