因沙斯研究堆周边土壤和植物中的天然与人工放射性。

Natural and man-made radioactivity in soils and plants around the research reactor of Inshass.

作者信息

Higgy R H, Pimpl M

机构信息

National Centre for Nuclear Safety and Radiation Control, AEA, Nasr City, Cairo, Egypt.

出版信息

Appl Radiat Isot. 1998 Dec;49(12):1709-12. doi: 10.1016/s0969-8043(98)00009-8.

DOI:10.1016/s0969-8043(98)00009-8

PMID:9776618

Abstract

The specific radioactivities of the U-series, 232Th, 137Cs and 40K were measured in soil samples around the Inshass reactor in Cairo, using a gamma-ray spectrometer with a HpGe detector. The alpha activity of 238U, 234U and 235U was measured in the same soil samples by surface barrier detectors after radiochemical separation and the obtained results were compared with the specific activities determined by gamma-measurements. The alpha-activity of 238Pu, 239+240Pu, 241Am, 242Cm and 244Cm was measured after radiochemical separation by surface barrier detectors for both soil and plant samples. Then beta-activity of 241Pu was measured using liquid scintillation spectrometry.

摘要

使用配备高纯锗探测器的伽马射线光谱仪，对开罗因沙斯反应堆周围土壤样本中的铀系、钍 - 232、铯 - 137和钾 - 40的比活度进行了测量。通过放射化学分离后，使用表面阻挡探测器对相同土壤样本中铀 - 238、铀 - 234和铀 - 235的阿尔法活度进行了测量，并将所得结果与通过伽马测量确定的比活度进行了比较。通过表面阻挡探测器对土壤和植物样本进行放射化学分离后，测量了钚 - 238、钚 - 239 + 钚 - 240、镅 - 241、锔 - 242和锔 - 244的阿尔法活度。然后使用液体闪烁光谱法测量了钚 - 241的贝塔活度。