Elemental analysis using natural gamma-ray spectroscopy

A. Aksoy; A. A. Naqvi; F. Z. Khiari; F. Abujarad; M. Al-Ohali; M. Sumani

doi:10.1016/0168-9002(94)91722-1

Elemental analysis using natural gamma-ray spectroscopy

A. Aksoy^*
, A. A. Naqvi
, F. Z. Khiari
, F. Abujarad
, M. Al-Ohali
, M. Sumani

^*Corresponding author for this work

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

11 Scopus citations

Abstract

A gamma-ray spectroscopy setup has been recently established to measure the natural gamma-ray activity from potassium (⁴⁰K), uranium (²³⁸U), and thorium (²³²Th) isotopes in rock samples of oil well-logs. The setup mainly consists of a shielded 135 cm³ Hyper Pure Germanium (HPGe) detector, a 5 in. × 5 in. NaT(Tl) detector and a PC based data acquisition system. The core samples, with 70-100 g weight, have cylindrical geometry and are sealed such that radon gas from ²³⁸U decay would not escape from the sample. For room background subtraction, pure quartz samples identical to core samples were used. The sample is first counted with the HPGe detector to identify the elements through its characteristics gamma rays. Then the elemental concentration is determined by counting the sample with a NaI detector. In order to determine the absolute concentrations, the sample activity is compared with the activities of standards supplied by NIST and IAEA. The concentration of ²³⁸U and ²³²Th has been determined in ppm range with that of ⁴⁰K in wt.%.

Original language	English
Pages (from-to)	558-561
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	353
Issue number	1-3
DOIs	https://doi.org/10.1016/0168-9002(94)91722-1
State	Published - 30 Dec 1994

Bibliographical note

Funding Information:
The authors wish to acknowledge the Saudi-Aramco for the support to this work on the KFUPM, RI Project No . 21110. The Research Institute of King Fahd University of Petroleum and Minerals is acknowledged for the support provided to establish the setup.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/0168-9002(94)91722-1

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title = "Elemental analysis using natural gamma-ray spectroscopy",

abstract = "A gamma-ray spectroscopy setup has been recently established to measure the natural gamma-ray activity from potassium (40K), uranium (238U), and thorium (232Th) isotopes in rock samples of oil well-logs. The setup mainly consists of a shielded 135 cm3 Hyper Pure Germanium (HPGe) detector, a 5 in. × 5 in. NaT(Tl) detector and a PC based data acquisition system. The core samples, with 70-100 g weight, have cylindrical geometry and are sealed such that radon gas from 238U decay would not escape from the sample. For room background subtraction, pure quartz samples identical to core samples were used. The sample is first counted with the HPGe detector to identify the elements through its characteristics gamma rays. Then the elemental concentration is determined by counting the sample with a NaI detector. In order to determine the absolute concentrations, the sample activity is compared with the activities of standards supplied by NIST and IAEA. The concentration of 238U and 232Th has been determined in ppm range with that of 40K in wt.\%.",

author = "A. Aksoy and Naqvi, \{A. A.\} and Khiari, \{F. Z.\} and F. Abujarad and M. Al-Ohali and M. Sumani",

note = "Funding Information: The authors wish to acknowledge the Saudi-Aramco for the support to this work on the KFUPM, RI Project No . 21110. The Research Institute of King Fahd University of Petroleum and Minerals is acknowledged for the support provided to establish the setup.",

year = "1994",

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doi = "10.1016/0168-9002(94)91722-1",

language = "English",

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T1 - Elemental analysis using natural gamma-ray spectroscopy

AU - Aksoy, A.

AU - Naqvi, A. A.

AU - Khiari, F. Z.

AU - Abujarad, F.

AU - Al-Ohali, M.

AU - Sumani, M.

N1 - Funding Information: The authors wish to acknowledge the Saudi-Aramco for the support to this work on the KFUPM, RI Project No . 21110. The Research Institute of King Fahd University of Petroleum and Minerals is acknowledged for the support provided to establish the setup.

PY - 1994/12/30

Y1 - 1994/12/30

N2 - A gamma-ray spectroscopy setup has been recently established to measure the natural gamma-ray activity from potassium (40K), uranium (238U), and thorium (232Th) isotopes in rock samples of oil well-logs. The setup mainly consists of a shielded 135 cm3 Hyper Pure Germanium (HPGe) detector, a 5 in. × 5 in. NaT(Tl) detector and a PC based data acquisition system. The core samples, with 70-100 g weight, have cylindrical geometry and are sealed such that radon gas from 238U decay would not escape from the sample. For room background subtraction, pure quartz samples identical to core samples were used. The sample is first counted with the HPGe detector to identify the elements through its characteristics gamma rays. Then the elemental concentration is determined by counting the sample with a NaI detector. In order to determine the absolute concentrations, the sample activity is compared with the activities of standards supplied by NIST and IAEA. The concentration of 238U and 232Th has been determined in ppm range with that of 40K in wt.%.

AB - A gamma-ray spectroscopy setup has been recently established to measure the natural gamma-ray activity from potassium (40K), uranium (238U), and thorium (232Th) isotopes in rock samples of oil well-logs. The setup mainly consists of a shielded 135 cm3 Hyper Pure Germanium (HPGe) detector, a 5 in. × 5 in. NaT(Tl) detector and a PC based data acquisition system. The core samples, with 70-100 g weight, have cylindrical geometry and are sealed such that radon gas from 238U decay would not escape from the sample. For room background subtraction, pure quartz samples identical to core samples were used. The sample is first counted with the HPGe detector to identify the elements through its characteristics gamma rays. Then the elemental concentration is determined by counting the sample with a NaI detector. In order to determine the absolute concentrations, the sample activity is compared with the activities of standards supplied by NIST and IAEA. The concentration of 238U and 232Th has been determined in ppm range with that of 40K in wt.%.

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

IS - 1-3

ER -

Elemental analysis using natural gamma-ray spectroscopy

Abstract

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