Sensitised TLD-700 for neutron-gamma ray dosimetry at radiation protection dose levels

Y. S. Horowitz; B. B. Shachar

doi:10.1093/oxfordjournals.rpd.a080806

Sensitised TLD-700 for neutron-gamma ray dosimetry at radiation protection dose levels

Y. S. Horowitz, B. B. Shachar

Department of Physics

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

8 Scopus citations

Abstract

Computerised glow curve deconvolution (CGCD) has been used to study the TL dose response and the relative intensity of the high temperature peaks in both sensitised and 'as received' LiF:Mg,Ti (TLD-700). The ⁶⁰Co gamma induced dose response of peak 7 is supralinear down to the lowest dose measurable (~ 2.5 mGy) and the supralinearity is strongly dependent on photon energy. In the sensitised material (the sensitisation procedure included 1000 Gy ⁶⁰Co irradiation followed by a 340°C, 30 min anneal), although the gamma induced dose response of peak 7 is linear, an intense high temperature background limits the minimum measurable dose to 500 μGy and 100 μGy for gamma and neutron irradiation respectively. We conclude that the method of peak 7/peak 5 ratios in both non-sensitised and sensitised TLD-700 is not suitable for neutron-gamma ray dosimetry at personal radiation protection dose levels.

Original language	English
Pages (from-to)	263-266
Number of pages	4
Journal	Radiation Protection Dosimetry
Volume	33
Issue number	1-4
DOIs	https://doi.org/10.1093/oxfordjournals.rpd.a080806
State	Published - 1 Jan 1990

ASJC Scopus subject areas

Radiation
Radiological and Ultrasound Technology
Radiology Nuclear Medicine and imaging
Public Health, Environmental and Occupational Health

Access to Document

10.1093/oxfordjournals.rpd.a080806

Cite this

@article{e6f0313d9cf540febbf61b03207ecdab,

title = "Sensitised TLD-700 for neutron-gamma ray dosimetry at radiation protection dose levels",

abstract = "Computerised glow curve deconvolution (CGCD) has been used to study the TL dose response and the relative intensity of the high temperature peaks in both sensitised and 'as received' LiF:Mg,Ti (TLD-700). The 60Co gamma induced dose response of peak 7 is supralinear down to the lowest dose measurable (~ 2.5 mGy) and the supralinearity is strongly dependent on photon energy. In the sensitised material (the sensitisation procedure included 1000 Gy 60Co irradiation followed by a 340°C, 30 min anneal), although the gamma induced dose response of peak 7 is linear, an intense high temperature background limits the minimum measurable dose to 500 μGy and 100 μGy for gamma and neutron irradiation respectively. We conclude that the method of peak 7/peak 5 ratios in both non-sensitised and sensitised TLD-700 is not suitable for neutron-gamma ray dosimetry at personal radiation protection dose levels.",

author = "Horowitz, {Y. S.} and Shachar, {B. B.}",

year = "1990",

month = jan,

day = "1",

doi = "10.1093/oxfordjournals.rpd.a080806",

language = "English",

volume = "33",

pages = "263--266",

journal = "Radiation Protection Dosimetry",

issn = "0144-8420",

publisher = "Oxford University Press",

number = "1-4",

}

TY - JOUR

T1 - Sensitised TLD-700 for neutron-gamma ray dosimetry at radiation protection dose levels

AU - Horowitz, Y. S.

AU - Shachar, B. B.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - Computerised glow curve deconvolution (CGCD) has been used to study the TL dose response and the relative intensity of the high temperature peaks in both sensitised and 'as received' LiF:Mg,Ti (TLD-700). The 60Co gamma induced dose response of peak 7 is supralinear down to the lowest dose measurable (~ 2.5 mGy) and the supralinearity is strongly dependent on photon energy. In the sensitised material (the sensitisation procedure included 1000 Gy 60Co irradiation followed by a 340°C, 30 min anneal), although the gamma induced dose response of peak 7 is linear, an intense high temperature background limits the minimum measurable dose to 500 μGy and 100 μGy for gamma and neutron irradiation respectively. We conclude that the method of peak 7/peak 5 ratios in both non-sensitised and sensitised TLD-700 is not suitable for neutron-gamma ray dosimetry at personal radiation protection dose levels.

AB - Computerised glow curve deconvolution (CGCD) has been used to study the TL dose response and the relative intensity of the high temperature peaks in both sensitised and 'as received' LiF:Mg,Ti (TLD-700). The 60Co gamma induced dose response of peak 7 is supralinear down to the lowest dose measurable (~ 2.5 mGy) and the supralinearity is strongly dependent on photon energy. In the sensitised material (the sensitisation procedure included 1000 Gy 60Co irradiation followed by a 340°C, 30 min anneal), although the gamma induced dose response of peak 7 is linear, an intense high temperature background limits the minimum measurable dose to 500 μGy and 100 μGy for gamma and neutron irradiation respectively. We conclude that the method of peak 7/peak 5 ratios in both non-sensitised and sensitised TLD-700 is not suitable for neutron-gamma ray dosimetry at personal radiation protection dose levels.

UR - http://www.scopus.com/inward/record.url?scp=0025015541&partnerID=8YFLogxK

U2 - 10.1093/oxfordjournals.rpd.a080806

DO - 10.1093/oxfordjournals.rpd.a080806

M3 - Article

AN - SCOPUS:0025015541

SN - 0144-8420

VL - 33

SP - 263

EP - 266

JO - Radiation Protection Dosimetry

JF - Radiation Protection Dosimetry

IS - 1-4

ER -

Sensitised TLD-700 for neutron-gamma ray dosimetry at radiation protection dose levels

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this