Development of portable multicoincidence radionuclide analysis systems
- 作者：Smith ; L. Eric ; Aalseth ; Craig E. ; Hossbach ; Todd W. ; Miley ; Harry S. ; Perkins ; Richard W. ; et. al.
- 关键词：07.05.Kf ; 07.85.&minus ; m ; 07.85.Nc ; 07.88.+y ; Radionuclides analysis ; Environmental sampling ; Nuclear forensics ; Coincidence systems
- 刊名：Nuclear Instruments and Methods in Physics Research Section A ; Accelerators ; Spectrometers ; Detectors and Associated Equipment
- 出版年：2003
- 期刊代码：41_01689002
- 类别：ph
- 出版时间：June 1, 2003
- 卷：505
- 期：1-2
- 页码：320-323
- 文件大小：121 K
摘要
Multicoincidence radionuclide analysis systems consisting of light-charged-particle detectors operating in coincidence with photon spectrometers are being developed to improve the sensitivity of radionuclide analysis in field applications. Requiring charged-particle/photon coincidence provides active shielding from environmental photon sources, and mapping photon–photon events into a coincidence plane can remove photon spectroscopy interferences. List-mode data acquisition and flexible hardware design ensures that the most sensitive coincidence schemes involving β, atomic electron, γ and X-ray emissions can be used for radionuclide quantification. System hardware design and preliminary measurement data are discussed. A centerpiece component of this project, the development of analysis tools and data libraries required to perform automated multicoincidence analysis, is also described.