True coincidence summing corrections in point and extended sources

Chhavi Agarwal; Sanhita Chaudhury; A. Goswami; M. Gathibandhe

doi:10.1007/s10967-011-1126-7

True coincidence summing corrections in point and extended sources

Chhavi Agarwal, Sanhita Chaudhury, A. Goswami, M. Gathibandhe

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The true coincidence summing (TCS) effect on the full energy peak (FEP) efficiency calibration of an HPGe detector has been studied as a function of sample-to-detector distance using multi-gamma sources. Analytical method has been used to calculate coincidence correction factors for ¹⁵²Eu, ¹³³Ba, ¹³⁴Cs and ⁶⁰Co for point and extended source geometry at close sample-to-detector distance. Peak and total efficiencies required for this method have been obtained by using MCNP code by using the optimized detector geometry. The correction factors have also been obtained experimentally. The analytical and the experimental correction factors have been found to match within 1-5%. The method has been applied to obtain the activity of the radionuclides (¹⁰⁶Ru, ¹²⁵Sb, ¹³⁴Cs and ¹⁴⁴Ce) present in a fission product sample.

Original language	English
Pages (from-to)	773-780
Number of pages	8
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	289
Issue number	3
DOIs	https://doi.org/10.1007/s10967-011-1126-7
State	Published - 1 Sep 2011
Externally published	Yes

Keywords

Analytical method
Full energy peak efficiency
Monte Carlo simulation
Total efficiency
True coincidence summing

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1007/s10967-011-1126-7

Cite this

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title = "True coincidence summing corrections in point and extended sources",

abstract = "The true coincidence summing (TCS) effect on the full energy peak (FEP) efficiency calibration of an HPGe detector has been studied as a function of sample-to-detector distance using multi-gamma sources. Analytical method has been used to calculate coincidence correction factors for 152Eu, 133Ba, 134Cs and 60Co for point and extended source geometry at close sample-to-detector distance. Peak and total efficiencies required for this method have been obtained by using MCNP code by using the optimized detector geometry. The correction factors have also been obtained experimentally. The analytical and the experimental correction factors have been found to match within 1-5%. The method has been applied to obtain the activity of the radionuclides (106Ru, 125Sb, 134Cs and 144Ce) present in a fission product sample.",

keywords = "Analytical method, Full energy peak efficiency, Monte Carlo simulation, Total efficiency, True coincidence summing",

author = "Chhavi Agarwal and Sanhita Chaudhury and A. Goswami and M. Gathibandhe",

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T1 - True coincidence summing corrections in point and extended sources

AU - Agarwal, Chhavi

AU - Chaudhury, Sanhita

AU - Goswami, A.

AU - Gathibandhe, M.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - The true coincidence summing (TCS) effect on the full energy peak (FEP) efficiency calibration of an HPGe detector has been studied as a function of sample-to-detector distance using multi-gamma sources. Analytical method has been used to calculate coincidence correction factors for 152Eu, 133Ba, 134Cs and 60Co for point and extended source geometry at close sample-to-detector distance. Peak and total efficiencies required for this method have been obtained by using MCNP code by using the optimized detector geometry. The correction factors have also been obtained experimentally. The analytical and the experimental correction factors have been found to match within 1-5%. The method has been applied to obtain the activity of the radionuclides (106Ru, 125Sb, 134Cs and 144Ce) present in a fission product sample.

AB - The true coincidence summing (TCS) effect on the full energy peak (FEP) efficiency calibration of an HPGe detector has been studied as a function of sample-to-detector distance using multi-gamma sources. Analytical method has been used to calculate coincidence correction factors for 152Eu, 133Ba, 134Cs and 60Co for point and extended source geometry at close sample-to-detector distance. Peak and total efficiencies required for this method have been obtained by using MCNP code by using the optimized detector geometry. The correction factors have also been obtained experimentally. The analytical and the experimental correction factors have been found to match within 1-5%. The method has been applied to obtain the activity of the radionuclides (106Ru, 125Sb, 134Cs and 144Ce) present in a fission product sample.

KW - Analytical method

KW - Full energy peak efficiency

KW - Monte Carlo simulation

KW - Total efficiency

KW - True coincidence summing

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JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

IS - 3

ER -

True coincidence summing corrections in point and extended sources

Abstract

Keywords

ASJC Scopus subject areas

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