Hydrogen, carbon and oxygen determination in proxy material samples using a LaBr3: Ce detector

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

doi:10.1016/j.apradiso.2013.04.006

Hydrogen, carbon and oxygen determination in proxy material samples using a LaBr₃: Ce detector

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

^*Corresponding author for this work

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

14 Scopus citations

Abstract

Hydrogen, carbon and oxygen concentrations were measured in caffeine, urea, ammonium acetate and melamine bulk samples via 14MeV neutron inelastic scattering using a LaBr₃:Ce detector. The samples tested herein represent drugs, explosives and benign materials, respectively. Despite its intrinsic activity, the LaBr₃:Ce detector performed well in detecting the hydrogen, carbon and oxygen elements. Because 5.1MeV nitrogen gamma rays interfere with silicon and calcium prompt gamma rays from the room background, the nitrogen peak was not detected in the samples. An excellent agreement was observed between the experimental and theoretical yields of 2.22, 4.43 and 6.13MeV gamma rays from the analyzed samples as a function of H, C and O concentrations, respectively. Within statistical errors, the minimum detectable concentration (MDC) of hydrogen, carbon and oxygen elements in the tested materials were consistent with previously reported MDC values for these elements measured in hydrocarbon samples.

Original language	English
Pages (from-to)	145-150
Number of pages	6
Journal	Applied Radiation and Isotopes
Volume	78
DOIs	https://doi.org/10.1016/j.apradiso.2013.04.006
State	Published - Aug 2013

Bibliographical note

Funding Information:
This study is part of Project # IN090033 funded by 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

14MeV neutron inelastic scattering induced prompt gamma rays
Explosive and narcotic proxy material samples
Large LaBr:Ce gamma ray detector
Minimum detection limit of the LaBr:Ce detector for carbon and oxygen elements in explosive and narcotics proxy material samples

ASJC Scopus subject areas

Radiation

Access to Document

10.1016/j.apradiso.2013.04.006

Cite this

@article{e84645ded4a346b7809eb2f79ad1fd5d,

title = "Hydrogen, carbon and oxygen determination in proxy material samples using a LaBr3: Ce detector",

abstract = "Hydrogen, carbon and oxygen concentrations were measured in caffeine, urea, ammonium acetate and melamine bulk samples via 14MeV neutron inelastic scattering using a LaBr3:Ce detector. The samples tested herein represent drugs, explosives and benign materials, respectively. Despite its intrinsic activity, the LaBr3:Ce detector performed well in detecting the hydrogen, carbon and oxygen elements. Because 5.1MeV nitrogen gamma rays interfere with silicon and calcium prompt gamma rays from the room background, the nitrogen peak was not detected in the samples. An excellent agreement was observed between the experimental and theoretical yields of 2.22, 4.43 and 6.13MeV gamma rays from the analyzed samples as a function of H, C and O concentrations, respectively. Within statistical errors, the minimum detectable concentration (MDC) of hydrogen, carbon and oxygen elements in the tested materials were consistent with previously reported MDC values for these elements measured in hydrocarbon samples.",

keywords = "14MeV neutron inelastic scattering induced prompt gamma rays, Explosive and narcotic proxy material samples, Large LaBr:Ce gamma ray detector, Minimum detection limit of the LaBr:Ce detector for carbon and oxygen elements in explosive and narcotics proxy material samples",

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

note = "Funding Information: This study is part of Project \# IN090033 funded by 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",

month = aug,

doi = "10.1016/j.apradiso.2013.04.006",

language = "English",

volume = "78",

pages = "145--150",

journal = "Applied Radiation and Isotopes",

issn = "0969-8043",

publisher = "Elsevier Ltd.",

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T1 - Hydrogen, carbon and oxygen determination in proxy material samples using a LaBr3

T2 - Ce detector

AU - Naqvi, A. A.

AU - Al-Matouq, Faris A.

AU - Khiari, F. Z.

AU - Isab, A. A.

AU - Raashid, M.

AU - Khateeb-ur-Rehman,

N1 - Funding Information: This study is part of Project # IN090033 funded by 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 - 2013/8

Y1 - 2013/8

N2 - Hydrogen, carbon and oxygen concentrations were measured in caffeine, urea, ammonium acetate and melamine bulk samples via 14MeV neutron inelastic scattering using a LaBr3:Ce detector. The samples tested herein represent drugs, explosives and benign materials, respectively. Despite its intrinsic activity, the LaBr3:Ce detector performed well in detecting the hydrogen, carbon and oxygen elements. Because 5.1MeV nitrogen gamma rays interfere with silicon and calcium prompt gamma rays from the room background, the nitrogen peak was not detected in the samples. An excellent agreement was observed between the experimental and theoretical yields of 2.22, 4.43 and 6.13MeV gamma rays from the analyzed samples as a function of H, C and O concentrations, respectively. Within statistical errors, the minimum detectable concentration (MDC) of hydrogen, carbon and oxygen elements in the tested materials were consistent with previously reported MDC values for these elements measured in hydrocarbon samples.

AB - Hydrogen, carbon and oxygen concentrations were measured in caffeine, urea, ammonium acetate and melamine bulk samples via 14MeV neutron inelastic scattering using a LaBr3:Ce detector. The samples tested herein represent drugs, explosives and benign materials, respectively. Despite its intrinsic activity, the LaBr3:Ce detector performed well in detecting the hydrogen, carbon and oxygen elements. Because 5.1MeV nitrogen gamma rays interfere with silicon and calcium prompt gamma rays from the room background, the nitrogen peak was not detected in the samples. An excellent agreement was observed between the experimental and theoretical yields of 2.22, 4.43 and 6.13MeV gamma rays from the analyzed samples as a function of H, C and O concentrations, respectively. Within statistical errors, the minimum detectable concentration (MDC) of hydrogen, carbon and oxygen elements in the tested materials were consistent with previously reported MDC values for these elements measured in hydrocarbon samples.

KW - 14MeV neutron inelastic scattering induced prompt gamma rays

KW - Explosive and narcotic proxy material samples

KW - Large LaBr:Ce gamma ray detector

KW - Minimum detection limit of the LaBr:Ce detector for carbon and oxygen elements in explosive and narcotics proxy material samples

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