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Silicon diode as an alpha particle detector and spectrometer for direct field measurements

Ören, Ünal LU ; Nilsson, Jonas LU ; Herrnsdorf, Lars LU ; Rääf, Christopher L. LU and Mattsson, Sören LU (2016) In Radiation Protection Dosimetry 170(1-4). p.247-251
Abstract

A windowless silicon (Si) diode (4 mm2) was evaluated as alpha particle detector and spectrometer for field measurements. It was irradiated with alpha particles from a 241Am (2.3 kBq) and a 210Po (9 kBq) source at source-detector distances (SDD) of 0.5, 1.0 and 1.8 cm. The energy resolution in terms of full width at half maximum was 281, 148 and 113 keV for SDD of 0.5, 1.0 and 1.8 cm, respectively. The minimum detectable activity increased from 0.08 to 0.83 Bq when the SDD increased from 0.5 to 1.8 cm. The detector has the potential for several alpha spectrometric applications, such as monitoring for wound, skin and surface contamination at nuclear fuel facilities, nuclear power plants and facilities... (More)

A windowless silicon (Si) diode (4 mm2) was evaluated as alpha particle detector and spectrometer for field measurements. It was irradiated with alpha particles from a 241Am (2.3 kBq) and a 210Po (9 kBq) source at source-detector distances (SDD) of 0.5, 1.0 and 1.8 cm. The energy resolution in terms of full width at half maximum was 281, 148 and 113 keV for SDD of 0.5, 1.0 and 1.8 cm, respectively. The minimum detectable activity increased from 0.08 to 0.83 Bq when the SDD increased from 0.5 to 1.8 cm. The detector has the potential for several alpha spectrometric applications, such as monitoring for wound, skin and surface contamination at nuclear fuel facilities, nuclear power plants and facilities handling radioactive waste. Other areas are environmental surveys following releases of actinides at accidents in nuclear power plants and in connection with other radiological or nuclear scenarios.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Radiation Protection Dosimetry
volume
170
issue
1-4
pages
247 - 251
publisher
Nuclear Technology Publishing
external identifiers
  • scopus:84992497318
  • wos:000384713300056
ISSN
0144-8420
DOI
10.1093/rpd/ncw089
language
English
LU publication?
yes
id
1c5e78f1-14a9-4871-9baf-7d725542fa9e
date added to LUP
2016-11-16 15:08:13
date last changed
2017-09-18 11:30:31
@article{1c5e78f1-14a9-4871-9baf-7d725542fa9e,
  abstract     = {<p>A windowless silicon (Si) diode (4 mm<sup>2</sup>) was evaluated as alpha particle detector and spectrometer for field measurements. It was irradiated with alpha particles from a <sup>241</sup>Am (2.3 kBq) and a <sup>210</sup>Po (9 kBq) source at source-detector distances (SDD) of 0.5, 1.0 and 1.8 cm. The energy resolution in terms of full width at half maximum was 281, 148 and 113 keV for SDD of 0.5, 1.0 and 1.8 cm, respectively. The minimum detectable activity increased from 0.08 to 0.83 Bq when the SDD increased from 0.5 to 1.8 cm. The detector has the potential for several alpha spectrometric applications, such as monitoring for wound, skin and surface contamination at nuclear fuel facilities, nuclear power plants and facilities handling radioactive waste. Other areas are environmental surveys following releases of actinides at accidents in nuclear power plants and in connection with other radiological or nuclear scenarios.</p>},
  articleno    = {ncw089},
  author       = {Ören, Ünal and Nilsson, Jonas and Herrnsdorf, Lars and Rääf, Christopher L. and Mattsson, Sören},
  issn         = {0144-8420},
  language     = {eng},
  month        = {09},
  number       = {1-4},
  pages        = {247--251},
  publisher    = {Nuclear Technology Publishing},
  series       = {Radiation Protection Dosimetry},
  title        = {Silicon diode as an alpha particle detector and spectrometer for direct field measurements},
  url          = {http://dx.doi.org/10.1093/rpd/ncw089},
  volume       = {170},
  year         = {2016},
}