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Determination of homogeneity of the top surface deadlayer in an old HPGe detector.
- Source :
-
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2019 May; Vol. 147, pp. 182-188. Date of Electronic Publication: 2019 Mar 04. - Publication Year :
- 2019
-
Abstract
- A collimated source of <superscript>241</superscript> Am was scanned over the endcap of a 21 year old coaxial HPGe-detector that had spent about 75% of its life at room temperature (and the remaining time at 77 K). The detector response was recorded and used as a measure of the relative thickness of the top deadlayer. This thickness was not homogeneous and was thicker near to the outer surface of the crystal compared to the centre, which could be a result of increased diffusion of Li atoms during times the detector was kept at room temperature. The results were compared with two newer HPGe-detectors that proved to have homogeneous top deadlayers.<br /> (Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1872-9800
- Volume :
- 147
- Database :
- MEDLINE
- Journal :
- Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
- Publication Type :
- Academic Journal
- Accession number :
- 30878781
- Full Text :
- https://doi.org/10.1016/j.apradiso.2019.02.019