Inaccuracy Determination in Mathematical Model of Labsocs Efficiency Calibration Program; IOP Conference Series: Materials Science and Engineering; Vol. 142 : Innovative Technologies in Engineering
| Parent link: | IOP Conference Series: Materials Science and Engineering Vol. 142 : Innovative Technologies in Engineering.— 2016.— [012050, 5 p.] |
|---|---|
| Main Author: | Kuznetsov M. S. Mikhail Sergeyevich |
| Corporate Author: | Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра физико-энергетических установок (№ 21) (ФЭУ) |
| Other Authors: | Nikishkin T., Chursin S. S. Stanislav Sergeevich |
| Summary: | Title screen The study of radioactive materials quantitative inaccuracy determination caused by semiconductor detector aging is presented in the article. The study was conducted using a p- type coaxial GC 1518 detector made of a high-purity germanium produced by Canberra Company and LabSOCS mathematical efficiency calibration program. It was discovered that during 8 years of operation the efficiency of the detector had decreased due to increase of the dead layer of the germanium crystal. Increasing the thickness of the dead layer leads to 2 effects, which influence on the efficiency decrease: the shielding effect and the effect of reducing the active volume of the germanium crystal. It is found that the shielding effect contributes at energies below 88 keV. At energies above 88 keV the inaccuracy is connected with the decrease of the germanium crystal active volume, caused by lithium thermal diffusion. |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1088/1757-899X/142/1/012050 http://earchive.tpu.ru/handle/11683/34733 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650420 |
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