Development of measurement technology for beta-ray depth distribution in soil

J. W. Bae; U. Lee; C. W. Lee; H. R. Kim

Development of measurement technology for beta-ray depth distribution in soil

J. W. Bae, U. Lee, C. W. Lee, H. R. Kim

Research output: Contribution to conference › Paper › peer-review

Abstract

Beta distribution measurement technology on the depth of soil was developed aiming for monitoring ofradioactive contamination in the site of decommissioned nuclear power plant. Two types of scintillators (CdWO₄& BC-400; Saint-Gobain Crystals) were used for it. CdWO₄ was more sensitive to gamma-ray than BC-400 while beta-ray sensitivity for both scintillators were similar. Gamma-ray contribution was estimated and eliminated from measured spectra by using this characteristic. Gamma-ray sensitivity ratio between CdWO₄ and BC-400 was 5.433 in average depending on energy (5.91 to 5.30 from 511 keV to 1,330 keV) while beta-ray sensitivity ratio for ⁹⁰Sr source was 1.023±0.002. Pure beta-ray source (only ⁹⁰Sr) and combined source (⁹⁰Sr and ⁶⁰Co) was prepared with depth distribution. Relative errors between the measured count rate for pure beta-ray source and calculated count rate for combined source were varied from 2.55% to 20.9%.

Original language	English
State	Published - 2017
Externally published	Yes
Event	37th Annual Conference of the Canadian Nuclear Society and 41st Annual CNS/CNA Student Conference - Niagara Falls, Canada Duration: Jun 4 2017 → Jun 7 2017

Conference

Conference	37th Annual Conference of the Canadian Nuclear Society and 41st Annual CNS/CNA Student Conference
Country/Territory	Canada
City	Niagara Falls
Period	06/4/17 → 06/7/17

Cite this

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title = "Development of measurement technology for beta-ray depth distribution in soil",

abstract = "Beta distribution measurement technology on the depth of soil was developed aiming for monitoring ofradioactive contamination in the site of decommissioned nuclear power plant. Two types of scintillators (CdWO4& BC-400; Saint-Gobain Crystals) were used for it. CdWO4 was more sensitive to gamma-ray than BC-400 while beta-ray sensitivity for both scintillators were similar. Gamma-ray contribution was estimated and eliminated from measured spectra by using this characteristic. Gamma-ray sensitivity ratio between CdWO4 and BC-400 was 5.433 in average depending on energy (5.91 to 5.30 from 511 keV to 1,330 keV) while beta-ray sensitivity ratio for 90Sr source was 1.023±0.002. Pure beta-ray source (only 90Sr) and combined source (90Sr and 60Co) was prepared with depth distribution. Relative errors between the measured count rate for pure beta-ray source and calculated count rate for combined source were varied from 2.55% to 20.9%.",

author = "Bae, {J. W.} and U. Lee and Lee, {C. W.} and Kim, {H. R.}",

year = "2017",

language = "English",

note = "37th Annual Conference of the Canadian Nuclear Society and 41st Annual CNS/CNA Student Conference ; Conference date: 04-06-2017 Through 07-06-2017",

}

TY - CONF

T1 - Development of measurement technology for beta-ray depth distribution in soil

AU - Bae, J. W.

AU - Lee, U.

AU - Lee, C. W.

AU - Kim, H. R.

PY - 2017

Y1 - 2017

N2 - Beta distribution measurement technology on the depth of soil was developed aiming for monitoring ofradioactive contamination in the site of decommissioned nuclear power plant. Two types of scintillators (CdWO4& BC-400; Saint-Gobain Crystals) were used for it. CdWO4 was more sensitive to gamma-ray than BC-400 while beta-ray sensitivity for both scintillators were similar. Gamma-ray contribution was estimated and eliminated from measured spectra by using this characteristic. Gamma-ray sensitivity ratio between CdWO4 and BC-400 was 5.433 in average depending on energy (5.91 to 5.30 from 511 keV to 1,330 keV) while beta-ray sensitivity ratio for 90Sr source was 1.023±0.002. Pure beta-ray source (only 90Sr) and combined source (90Sr and 60Co) was prepared with depth distribution. Relative errors between the measured count rate for pure beta-ray source and calculated count rate for combined source were varied from 2.55% to 20.9%.

AB - Beta distribution measurement technology on the depth of soil was developed aiming for monitoring ofradioactive contamination in the site of decommissioned nuclear power plant. Two types of scintillators (CdWO4& BC-400; Saint-Gobain Crystals) were used for it. CdWO4 was more sensitive to gamma-ray than BC-400 while beta-ray sensitivity for both scintillators were similar. Gamma-ray contribution was estimated and eliminated from measured spectra by using this characteristic. Gamma-ray sensitivity ratio between CdWO4 and BC-400 was 5.433 in average depending on energy (5.91 to 5.30 from 511 keV to 1,330 keV) while beta-ray sensitivity ratio for 90Sr source was 1.023±0.002. Pure beta-ray source (only 90Sr) and combined source (90Sr and 60Co) was prepared with depth distribution. Relative errors between the measured count rate for pure beta-ray source and calculated count rate for combined source were varied from 2.55% to 20.9%.

UR - http://www.scopus.com/inward/record.url?scp=85040245005&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85040245005

T2 - 37th Annual Conference of the Canadian Nuclear Society and 41st Annual CNS/CNA Student Conference

Y2 - 4 June 2017 through 7 June 2017

ER -

Development of measurement technology for beta-ray depth distribution in soil

Abstract

Conference

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