EPR of gamma-irradiated polycrystalline alanine-in-glass dosimeter

Anan M. Al-Karmi; M. A. Morsy

doi:10.1016/j.radmeas.2008.04.088

EPR of gamma-irradiated polycrystalline alanine-in-glass dosimeter

Anan M. Al-Karmi
, M. A. Morsy^*

^*Corresponding author for this work

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

9 Scopus citations

Abstract

This study attempts to overcome some of the reported discrepancies in alanine-EPR reproducibility that may be related to alanine dosimeter preparation and/or EPR spectrometer settings. The dosimeters were prepared by packing pure polycrystalline L - α - alanine directly as supplied by the manufacturer in glass tubes. This dosimeter production scheme avoids any possible contribution to the EPR signal from a binding material. The dosimeters were irradiated with gamma ray to low-dose ranges typical for medical therapy (0-20 Gy). Special attention has been paid to the study of minimum detectable dose, measurement repeatability and reproducibility, and post-irradiation stability. The dosimeter exhibited a linear dose response in the dose range from 0.1 to 20 Gy. These positive properties favor the polycrystalline alanine-in-glass tube as a radiation dosimeter.

Original language	English
Pages (from-to)	1315-1318
Number of pages	4
Journal	Radiation Measurements
Volume	43
Issue number	7
DOIs	https://doi.org/10.1016/j.radmeas.2008.04.088
State	Published - Aug 2008

Bibliographical note

Funding Information:
The authors would like to acknowledge the support provided for this work by King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, through Fast Track project number FT-2004/18. The authors wish to thank M. Qureshi, N. Iqbal (Center for Applied Physical Sciences—Research Institute) and I. Ismail (Chemistry Department) for their valuable assistance.

Keywords

Absorbed dose
Alanine dosimetry
EPR spectroscopy
Gamma radiation

ASJC Scopus subject areas

Radiation
Instrumentation

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10.1016/j.radmeas.2008.04.088

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title = "EPR of gamma-irradiated polycrystalline alanine-in-glass dosimeter",

abstract = "This study attempts to overcome some of the reported discrepancies in alanine-EPR reproducibility that may be related to alanine dosimeter preparation and/or EPR spectrometer settings. The dosimeters were prepared by packing pure polycrystalline L - α - alanine directly as supplied by the manufacturer in glass tubes. This dosimeter production scheme avoids any possible contribution to the EPR signal from a binding material. The dosimeters were irradiated with gamma ray to low-dose ranges typical for medical therapy (0-20 Gy). Special attention has been paid to the study of minimum detectable dose, measurement repeatability and reproducibility, and post-irradiation stability. The dosimeter exhibited a linear dose response in the dose range from 0.1 to 20 Gy. These positive properties favor the polycrystalline alanine-in-glass tube as a radiation dosimeter.",

keywords = "Absorbed dose, Alanine dosimetry, EPR spectroscopy, Gamma radiation",

author = "Al-Karmi, \{Anan M.\} and Morsy, \{M. A.\}",

note = "Funding Information: The authors would like to acknowledge the support provided for this work by King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, through Fast Track project number FT-2004/18. The authors wish to thank M. Qureshi, N. Iqbal (Center for Applied Physical Sciences—Research Institute) and I. Ismail (Chemistry Department) for their valuable assistance. ",

year = "2008",

month = aug,

doi = "10.1016/j.radmeas.2008.04.088",

language = "English",

volume = "43",

pages = "1315--1318",

journal = "Radiation Measurements",

issn = "1350-4487",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - EPR of gamma-irradiated polycrystalline alanine-in-glass dosimeter

AU - Al-Karmi, Anan M.

AU - Morsy, M. A.

N1 - Funding Information: The authors would like to acknowledge the support provided for this work by King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, through Fast Track project number FT-2004/18. The authors wish to thank M. Qureshi, N. Iqbal (Center for Applied Physical Sciences—Research Institute) and I. Ismail (Chemistry Department) for their valuable assistance.

PY - 2008/8

Y1 - 2008/8

N2 - This study attempts to overcome some of the reported discrepancies in alanine-EPR reproducibility that may be related to alanine dosimeter preparation and/or EPR spectrometer settings. The dosimeters were prepared by packing pure polycrystalline L - α - alanine directly as supplied by the manufacturer in glass tubes. This dosimeter production scheme avoids any possible contribution to the EPR signal from a binding material. The dosimeters were irradiated with gamma ray to low-dose ranges typical for medical therapy (0-20 Gy). Special attention has been paid to the study of minimum detectable dose, measurement repeatability and reproducibility, and post-irradiation stability. The dosimeter exhibited a linear dose response in the dose range from 0.1 to 20 Gy. These positive properties favor the polycrystalline alanine-in-glass tube as a radiation dosimeter.

AB - This study attempts to overcome some of the reported discrepancies in alanine-EPR reproducibility that may be related to alanine dosimeter preparation and/or EPR spectrometer settings. The dosimeters were prepared by packing pure polycrystalline L - α - alanine directly as supplied by the manufacturer in glass tubes. This dosimeter production scheme avoids any possible contribution to the EPR signal from a binding material. The dosimeters were irradiated with gamma ray to low-dose ranges typical for medical therapy (0-20 Gy). Special attention has been paid to the study of minimum detectable dose, measurement repeatability and reproducibility, and post-irradiation stability. The dosimeter exhibited a linear dose response in the dose range from 0.1 to 20 Gy. These positive properties favor the polycrystalline alanine-in-glass tube as a radiation dosimeter.

KW - Absorbed dose

KW - Alanine dosimetry

KW - EPR spectroscopy

KW - Gamma radiation

UR - https://www.scopus.com/pages/publications/48849103758

U2 - 10.1016/j.radmeas.2008.04.088

DO - 10.1016/j.radmeas.2008.04.088

M3 - Article

AN - SCOPUS:48849103758

SN - 1350-4487

VL - 43

SP - 1315

EP - 1318

JO - Radiation Measurements

JF - Radiation Measurements

IS - 7

ER -

EPR of gamma-irradiated polycrystalline alanine-in-glass dosimeter

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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