New source-moderator geometry to improve performance of 252Cf and 241Am-Be source-based PGNAA setups

A. A. Naqvi; M. S. Abdelmonem; Ghada Al-Misned; Hanan Al-Ghamdi

doi:10.1016/j.nima.2006.02.004

New source-moderator geometry to improve performance of ²⁵²Cf and ²⁴¹Am-Be source-based PGNAA setups

A. A. Naqvi^*
, M. S. Abdelmonem
, Ghada Al-Misned
, Hanan Al-Ghamdi

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

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

14 Scopus citations

Abstract

The gamma ray yield from a ²⁵²Cf and a ²⁴¹Am-Be source-based Prompt Gamma Ray Activation Analysis (PGNAA) setup has been observed to increase with enclosing their neutrons sources in a high-density polyethylene moderator. The prompt gamma rays yield from both setups depends upon the moderator length and the source position in it. For both setups, the optimum moderator length is found to be 7 cm. The optimum position of the neutron source inside moderator of the ²⁵²Cf and the ²⁴¹Am-Be source-based PGNAA setups was found to be at a distance of 0.5 and 0.75 cm from the moderator-end facing the sample, respectively. Due to enclosure of the source in the moderator, about three-fold increase has been observed in the yield of prompt gamma rays from a Portland cement sample of a ²⁵²Cf and a ²⁴¹Am-Be source-based PGNAA setups.

Original language	English
Pages (from-to)	358-364
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	562
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2006.02.004
State	Published - 15 Jun 2006

Bibliographical note

Funding Information:
The authors would like to acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran and Girls Education College, Riyadh Girls Colleges, Riyadh, Saudi Arabia.

Keywords

Cf and Am-Be source-based PGNAA setups
Monte Carlo simulations
Neutrons source enclosed in the moderator
PGNAA study
Portland cement samples

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nima.2006.02.004

Cite this

@article{0ab9156d2eb145509e018f7425ff405c,

title = "New source-moderator geometry to improve performance of 252Cf and 241Am-Be source-based PGNAA setups",

abstract = "The gamma ray yield from a 252Cf and a 241Am-Be source-based Prompt Gamma Ray Activation Analysis (PGNAA) setup has been observed to increase with enclosing their neutrons sources in a high-density polyethylene moderator. The prompt gamma rays yield from both setups depends upon the moderator length and the source position in it. For both setups, the optimum moderator length is found to be 7 cm. The optimum position of the neutron source inside moderator of the 252Cf and the 241Am-Be source-based PGNAA setups was found to be at a distance of 0.5 and 0.75 cm from the moderator-end facing the sample, respectively. Due to enclosure of the source in the moderator, about three-fold increase has been observed in the yield of prompt gamma rays from a Portland cement sample of a 252Cf and a 241Am-Be source-based PGNAA setups.",

keywords = "Cf and Am-Be source-based PGNAA setups, Monte Carlo simulations, Neutrons source enclosed in the moderator, PGNAA study, Portland cement samples",

author = "Naqvi, \{A. A.\} and Abdelmonem, \{M. S.\} and Ghada Al-Misned and Hanan Al-Ghamdi",

note = "Funding Information: The authors would like to acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran and Girls Education College, Riyadh Girls Colleges, Riyadh, Saudi Arabia.",

year = "2006",

month = jun,

day = "15",

doi = "10.1016/j.nima.2006.02.004",

language = "English",

volume = "562",

pages = "358--364",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier BV",

number = "1",

}

New source-moderator geometry to improve performance of ²⁵²Cf and ²⁴¹Am-Be source-based PGNAA setups. / Naqvi, A. A.; Abdelmonem, M. S.; Al-Misned, Ghada et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 562, No. 1, 15.06.2006, p. 358-364.

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

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AU - Naqvi, A. A.

AU - Abdelmonem, M. S.

AU - Al-Misned, Ghada

AU - Al-Ghamdi, Hanan

N1 - Funding Information: The authors would like to acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran and Girls Education College, Riyadh Girls Colleges, Riyadh, Saudi Arabia.

PY - 2006/6/15

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N2 - The gamma ray yield from a 252Cf and a 241Am-Be source-based Prompt Gamma Ray Activation Analysis (PGNAA) setup has been observed to increase with enclosing their neutrons sources in a high-density polyethylene moderator. The prompt gamma rays yield from both setups depends upon the moderator length and the source position in it. For both setups, the optimum moderator length is found to be 7 cm. The optimum position of the neutron source inside moderator of the 252Cf and the 241Am-Be source-based PGNAA setups was found to be at a distance of 0.5 and 0.75 cm from the moderator-end facing the sample, respectively. Due to enclosure of the source in the moderator, about three-fold increase has been observed in the yield of prompt gamma rays from a Portland cement sample of a 252Cf and a 241Am-Be source-based PGNAA setups.

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