Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach

Walid A. Metwally; Robin P. Gardner; Charles W. Mayo

doi:10.1016/S0168-583X(03)01660-4

Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach

Walid A. Metwally
, Robin P. Gardner
, Charles W. Mayo

Research output: Contribution to journal › Conference article › peer-review

20 Scopus citations

Abstract

An accurate method for determining elemental analysis using gamma-gamma coincidence counting is presented. To demonstrate the feasibility of this method for PGNAA, a system of three radioisotopes (Na-24, Co-60 and Cs-134) that emit coincident gamma rays was used. Two HPGe detectors were connected to a system that allowed both singles and coincidences to be collected simultaneously. A known mixture of the three radioisotopes was used and data was deliberately collected at relatively high counting rates to determine the effect of pulse pile-up distortion. The results obtained, with the library least-squares analysis, of both the normal and coincidence counting are presented and compared to the known amounts. The coincidence results are shown to give much better accuracy. It appears that in addition to the expected advantage of reduced background, the coincidence approach is considerably more resistant to pulse pile-up distortion.

Original language	English
Pages (from-to)	394-399
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	213
DOIs	https://doi.org/10.1016/S0168-583X(03)01660-4
State	Published - Jan 2004
Externally published	Yes
Event	5th Topical Meeting on Industrial Radiation and Radioisotope (IRRMA-V) - Bologna, Italy Duration: Jun 9 2002 → Jun 14 2002

Funding

The authors are grateful to the Idaho National Engineering and Environmental Laboratory (INEEL) for lending us the two HPGe detectors used throughout this work. The authors also gratefully acknowledge the support of the US Department of Energy through NEER Grant No. DE-FG07-99ID13775 entitled “Coincidence Prompt Gamma-Ray Neutron Activation Analysis”.

Keywords

Gamma-gamma coincidence
PGNAA

Access to Document

10.1016/S0168-583X(03)01660-4

Cite this

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title = "Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach",

abstract = "An accurate method for determining elemental analysis using gamma-gamma coincidence counting is presented. To demonstrate the feasibility of this method for PGNAA, a system of three radioisotopes (Na-24, Co-60 and Cs-134) that emit coincident gamma rays was used. Two HPGe detectors were connected to a system that allowed both singles and coincidences to be collected simultaneously. A known mixture of the three radioisotopes was used and data was deliberately collected at relatively high counting rates to determine the effect of pulse pile-up distortion. The results obtained, with the library least-squares analysis, of both the normal and coincidence counting are presented and compared to the known amounts. The coincidence results are shown to give much better accuracy. It appears that in addition to the expected advantage of reduced background, the coincidence approach is considerably more resistant to pulse pile-up distortion.",

keywords = "Gamma-gamma coincidence, PGNAA",

author = "Metwally, \{Walid A.\} and Gardner, \{Robin P.\} and Mayo, \{Charles W.\}",

year = "2004",

month = jan,

doi = "10.1016/S0168-583X(03)01660-4",

language = "English",

volume = "213",

pages = "394--399",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier",

note = "5th Topical Meeting on Industrial Radiation and Radioisotope (IRRMA-V) ; Conference date: 09-06-2002 Through 14-06-2002",

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Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach. / Metwally, Walid A.; Gardner, Robin P.; Mayo, Charles W.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 213, 01.2004, p. 394-399.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach

AU - Metwally, Walid A.

AU - Gardner, Robin P.

AU - Mayo, Charles W.

PY - 2004/1

Y1 - 2004/1

N2 - An accurate method for determining elemental analysis using gamma-gamma coincidence counting is presented. To demonstrate the feasibility of this method for PGNAA, a system of three radioisotopes (Na-24, Co-60 and Cs-134) that emit coincident gamma rays was used. Two HPGe detectors were connected to a system that allowed both singles and coincidences to be collected simultaneously. A known mixture of the three radioisotopes was used and data was deliberately collected at relatively high counting rates to determine the effect of pulse pile-up distortion. The results obtained, with the library least-squares analysis, of both the normal and coincidence counting are presented and compared to the known amounts. The coincidence results are shown to give much better accuracy. It appears that in addition to the expected advantage of reduced background, the coincidence approach is considerably more resistant to pulse pile-up distortion.

AB - An accurate method for determining elemental analysis using gamma-gamma coincidence counting is presented. To demonstrate the feasibility of this method for PGNAA, a system of three radioisotopes (Na-24, Co-60 and Cs-134) that emit coincident gamma rays was used. Two HPGe detectors were connected to a system that allowed both singles and coincidences to be collected simultaneously. A known mixture of the three radioisotopes was used and data was deliberately collected at relatively high counting rates to determine the effect of pulse pile-up distortion. The results obtained, with the library least-squares analysis, of both the normal and coincidence counting are presented and compared to the known amounts. The coincidence results are shown to give much better accuracy. It appears that in addition to the expected advantage of reduced background, the coincidence approach is considerably more resistant to pulse pile-up distortion.

KW - Gamma-gamma coincidence

KW - PGNAA

UR - https://www.scopus.com/pages/publications/0242662449

U2 - 10.1016/S0168-583X(03)01660-4

DO - 10.1016/S0168-583X(03)01660-4

M3 - Conference article

AN - SCOPUS:0242662449

SN - 0168-583X

VL - 213

SP - 394

EP - 399

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

T2 - 5th Topical Meeting on Industrial Radiation and Radioisotope (IRRMA-V)

Y2 - 9 June 2002 through 14 June 2002

ER -

Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach

Abstract

Funding

Keywords

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