Sample dependent response of a LaCl3:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples

A. A. Naqvi; Faris A. Al-Matouq; F. Z. Khiari; A. A. Isab; M. Raashid

doi:10.1016/j.nima.2013.04.027

Sample dependent response of a LaCl₃:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples

A. A. Naqvi^*, Faris A. Al-Matouq, F. Z. Khiari, A. A. Isab, Khateeb-Ur-Rehman, M. Raashid

^*Corresponding author for this work

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

2 Scopus citations

Abstract

The response of a LaCl₃:Ce detector has been found to depend upon the hydrogen content of bulk samples in prompt gamma analysis using 14 MeV neutron inelastic scattering. The moderation of 14 MeV neutrons from hydrogen in the bulk sample produces thermal neutrons around the sample which ultimately excite chlorine capture gamma rays in the LaCl₃:Ce detector material. Interference of 6.11 MeV chlorine gamma rays from the detector itself with 6.13 MeV oxygen gamma rays from the bulk samples makes the intensity of the 6.13 MeV oxygen gamma ray peak relatively insensitive to variations in oxygen concentration. The strong dependence of the 1.95 MeV doublet chlorine gamma ray yield on hydrogen content of the bulk samples confirms fast neutron moderation from hydrogen in the bulk samples as a major source of production of thermal neutrons and chlorine gamma rays in the LaCl₃:Ce detector material. Despite their poor oxygen detection capabilities, these detectors have nonetheless excellent detection capabilities for hydrogen and carbon in benzene, butyl alcohol, propanol, propanic acid, and formic acid bulk samples using 14 MeV neutron inelastic scattering.

Original language	English
Pages (from-to)	39-43
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	719
DOIs	https://doi.org/10.1016/j.nima.2013.04.027
State	Published - 2013

Bibliographical note

Funding Information:
This study is part of a Project no. IN090033 funded by the King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia . The support provided by the Department of Physics and Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia , is also acknowledged.

Keywords

Bulk hydrocarbon samples, 14 MeV neutron inelastic scattering: neutron moderation in bulk hydrocarbon samples: enhanced chlorine background in LaCl:Ce detector spectrum
Interference of 6.11 MeV oxygen and 6.13 MeV chlorine gamma rays LaCl:Cl detector limitation for oxygen detection in hydrocarbon sample
Sample dependent response of LaCl:Cl detector

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nima.2013.04.027

Cite this

Naqvi, A. A., Al-Matouq, F. A., Khiari, F. Z., Isab, A. A., Khateeb-Ur-Rehman, & Raashid, M. (2013). Sample dependent response of a LaCl₃:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 719, 39-43. https://doi.org/10.1016/j.nima.2013.04.027

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title = "Sample dependent response of a LaCl3:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples",

abstract = "The response of a LaCl3:Ce detector has been found to depend upon the hydrogen content of bulk samples in prompt gamma analysis using 14 MeV neutron inelastic scattering. The moderation of 14 MeV neutrons from hydrogen in the bulk sample produces thermal neutrons around the sample which ultimately excite chlorine capture gamma rays in the LaCl3:Ce detector material. Interference of 6.11 MeV chlorine gamma rays from the detector itself with 6.13 MeV oxygen gamma rays from the bulk samples makes the intensity of the 6.13 MeV oxygen gamma ray peak relatively insensitive to variations in oxygen concentration. The strong dependence of the 1.95 MeV doublet chlorine gamma ray yield on hydrogen content of the bulk samples confirms fast neutron moderation from hydrogen in the bulk samples as a major source of production of thermal neutrons and chlorine gamma rays in the LaCl3:Ce detector material. Despite their poor oxygen detection capabilities, these detectors have nonetheless excellent detection capabilities for hydrogen and carbon in benzene, butyl alcohol, propanol, propanic acid, and formic acid bulk samples using 14 MeV neutron inelastic scattering.",

keywords = "Bulk hydrocarbon samples, 14 MeV neutron inelastic scattering: neutron moderation in bulk hydrocarbon samples: enhanced chlorine background in LaCl:Ce detector spectrum, Interference of 6.11 MeV oxygen and 6.13 MeV chlorine gamma rays LaCl:Cl detector limitation for oxygen detection in hydrocarbon sample, Sample dependent response of LaCl:Cl detector",

author = "Naqvi, \{A. A.\} and Al-Matouq, \{Faris A.\} and Khiari, \{F. Z.\} and Isab, \{A. A.\} and Khateeb-Ur-Rehman and M. Raashid",

note = "Funding Information: This study is part of a Project no. IN090033 funded by the King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia . The support provided by the Department of Physics and Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia , is also acknowledged. ",

year = "2013",

doi = "10.1016/j.nima.2013.04.027",

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pages = "39--43",

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Naqvi, AA, Al-Matouq, FA, Khiari, FZ, Isab, AA, Khateeb-Ur-Rehman & Raashid, M 2013, 'Sample dependent response of a LaCl₃:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 719, pp. 39-43. https://doi.org/10.1016/j.nima.2013.04.027

Sample dependent response of a LaCl₃:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples. / Naqvi, A. A.; Al-Matouq, Faris A.; Khiari, F. Z. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 719, 2013, p. 39-43.

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

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T1 - Sample dependent response of a LaCl3:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples

AU - Naqvi, A. A.

AU - Al-Matouq, Faris A.

AU - Khiari, F. Z.

AU - Isab, A. A.

AU - Khateeb-Ur-Rehman,

AU - Raashid, M.

N1 - Funding Information: This study is part of a Project no. IN090033 funded by the King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia . The support provided by the Department of Physics and Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia , is also acknowledged.

PY - 2013

Y1 - 2013

N2 - The response of a LaCl3:Ce detector has been found to depend upon the hydrogen content of bulk samples in prompt gamma analysis using 14 MeV neutron inelastic scattering. The moderation of 14 MeV neutrons from hydrogen in the bulk sample produces thermal neutrons around the sample which ultimately excite chlorine capture gamma rays in the LaCl3:Ce detector material. Interference of 6.11 MeV chlorine gamma rays from the detector itself with 6.13 MeV oxygen gamma rays from the bulk samples makes the intensity of the 6.13 MeV oxygen gamma ray peak relatively insensitive to variations in oxygen concentration. The strong dependence of the 1.95 MeV doublet chlorine gamma ray yield on hydrogen content of the bulk samples confirms fast neutron moderation from hydrogen in the bulk samples as a major source of production of thermal neutrons and chlorine gamma rays in the LaCl3:Ce detector material. Despite their poor oxygen detection capabilities, these detectors have nonetheless excellent detection capabilities for hydrogen and carbon in benzene, butyl alcohol, propanol, propanic acid, and formic acid bulk samples using 14 MeV neutron inelastic scattering.

AB - The response of a LaCl3:Ce detector has been found to depend upon the hydrogen content of bulk samples in prompt gamma analysis using 14 MeV neutron inelastic scattering. The moderation of 14 MeV neutrons from hydrogen in the bulk sample produces thermal neutrons around the sample which ultimately excite chlorine capture gamma rays in the LaCl3:Ce detector material. Interference of 6.11 MeV chlorine gamma rays from the detector itself with 6.13 MeV oxygen gamma rays from the bulk samples makes the intensity of the 6.13 MeV oxygen gamma ray peak relatively insensitive to variations in oxygen concentration. The strong dependence of the 1.95 MeV doublet chlorine gamma ray yield on hydrogen content of the bulk samples confirms fast neutron moderation from hydrogen in the bulk samples as a major source of production of thermal neutrons and chlorine gamma rays in the LaCl3:Ce detector material. Despite their poor oxygen detection capabilities, these detectors have nonetheless excellent detection capabilities for hydrogen and carbon in benzene, butyl alcohol, propanol, propanic acid, and formic acid bulk samples using 14 MeV neutron inelastic scattering.

KW - Bulk hydrocarbon samples, 14 MeV neutron inelastic scattering: neutron moderation in bulk hydrocarbon samples: enhanced chlorine background in LaCl:Ce detector spectrum

KW - Interference of 6.11 MeV oxygen and 6.13 MeV chlorine gamma rays LaCl:Cl detector limitation for oxygen detection in hydrocarbon sample

KW - Sample dependent response of LaCl:Cl detector

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U2 - 10.1016/j.nima.2013.04.027

DO - 10.1016/j.nima.2013.04.027

M3 - Article

AN - SCOPUS:84877786346

SN - 0168-9002

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Naqvi AA, Al-Matouq FA, Khiari FZ, Isab AA, Khateeb-Ur-Rehman, Raashid M. Sample dependent response of a LaCl₃:Ce detector in prompt gamma neutron activation analysis of bulk hydrocarbon samples. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2013;719:39-43. doi: 10.1016/j.nima.2013.04.027