Leblanc E, Coron N, Leblanc J, de Marcillac P, Bouchard J, Plagnard J
Laboratoire National de Métrologie et d'Essais, Laboratoire National Henri Becquerel, CEA Saclay, Gif-sur-Yvette 91191, Cedex, France.
Appl Radiat Isot. 2006 Oct-Nov;64(10-11):1281-6. doi: 10.1016/j.apradiso.2006.02.082. Epub 2006 Apr 18.
Applications such as environment monitoring implying alpha emitters activity measurement associated with isotope identification, require high-energy resolution detectors. Conventional silicon detectors are inexpensive therefore widely used, although intrinsically limited in energy resolution. Thermal detection principle of cryogenic detectors introduces a breakthrough in alpha particle measurement. For the first time, spectra with 5.5 keV FWHM energy resolution have been obtained for several external alpha emitting sources using a copper-germanium bolometer specially developed for alpha spectrometry.
诸如环境监测这类涉及与同位素识别相关的α发射体活度测量的应用，需要高能量分辨率探测器。传统的硅探测器价格低廉，因此被广泛使用，尽管其能量分辨率存在固有局限性。低温探测器的热探测原理在α粒子测量方面带来了突破。首次使用专门为α能谱分析开发的铜锗测辐射热计，针对几个外部α发射源获得了半高宽为5.5 keV能量分辨率的能谱。
