Investigation of the glow peak parameters, reusability and dosimetric precision of LiF:Mg,Cu,P at high heating rates up to 20 K.s-1

G. Ben-Amar; B. Ben-Shachar; L. Oster; Y. Horowitz; A. Horowitz

doi:10.1093/oxfordjournals.rpd.a032726

Investigation of the glow peak parameters, reusability and dosimetric precision of LiF:Mg,Cu,P at high heating rates up to 20 K.s^-1

G. Ben-Amar, B. Ben-Shachar, L. Oster, Y. Horowitz, A. Horowitz

Department of Physics

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

17 Scopus citations

Abstract

Above a critical temperature of 270°C, heating for even the order of seconds, leads to irreversible changes in the sensitivity and glow curve structure of LiF:MCP. This limitation suggests a potential disadvantage in the use of LIF:MCP at the high heating rates required for maximum throughput in personnel and environmental dosimetry. The maximum temperature of the glow peak is found to increase very rapidly from 210°C at 1.2 K.s^-1 to 280-285°C at 20 K.s^-1. Careful studies have been carried out in order to determine the effects of heating rates up to 15 K.s^-1 on precision at low dose and reusability. It is concluded that LiF:MCP (GR-200) can be used at heating rates as high as 15 K.s^-1 to a maximum temperature of 270°C for 12 s with, however, a residual signal of 2% under these conditions.

Original language	English
Pages (from-to)	235-238
Number of pages	4
Journal	Radiation Protection Dosimetry
Volume	84
Issue number	1-4
DOIs	https://doi.org/10.1093/oxfordjournals.rpd.a032726
State	Published - 1 Jan 1999

ASJC Scopus subject areas

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

Access to Document

10.1093/oxfordjournals.rpd.a032726

Cite this

@article{83f15edc26904288b28728da01e6af77,

title = "Investigation of the glow peak parameters, reusability and dosimetric precision of LiF:Mg,Cu,P at high heating rates up to 20 K.s-1",

abstract = "Above a critical temperature of 270°C, heating for even the order of seconds, leads to irreversible changes in the sensitivity and glow curve structure of LiF:MCP. This limitation suggests a potential disadvantage in the use of LIF:MCP at the high heating rates required for maximum throughput in personnel and environmental dosimetry. The maximum temperature of the glow peak is found to increase very rapidly from 210°C at 1.2 K.s-1 to 280-285°C at 20 K.s-1. Careful studies have been carried out in order to determine the effects of heating rates up to 15 K.s-1 on precision at low dose and reusability. It is concluded that LiF:MCP (GR-200) can be used at heating rates as high as 15 K.s-1 to a maximum temperature of 270°C for 12 s with, however, a residual signal of 2% under these conditions.",

author = "G. Ben-Amar and B. Ben-Shachar and L. Oster and Y. Horowitz and A. Horowitz",

year = "1999",

month = jan,

day = "1",

doi = "10.1093/oxfordjournals.rpd.a032726",

language = "English",

volume = "84",

pages = "235--238",

journal = "Radiation Protection Dosimetry",

issn = "0144-8420",

publisher = "Oxford University Press",

number = "1-4",

}

TY - JOUR

T1 - Investigation of the glow peak parameters, reusability and dosimetric precision of LiF:Mg,Cu,P at high heating rates up to 20 K.s-1

AU - Ben-Amar, G.

AU - Ben-Shachar, B.

AU - Oster, L.

AU - Horowitz, Y.

AU - Horowitz, A.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Above a critical temperature of 270°C, heating for even the order of seconds, leads to irreversible changes in the sensitivity and glow curve structure of LiF:MCP. This limitation suggests a potential disadvantage in the use of LIF:MCP at the high heating rates required for maximum throughput in personnel and environmental dosimetry. The maximum temperature of the glow peak is found to increase very rapidly from 210°C at 1.2 K.s-1 to 280-285°C at 20 K.s-1. Careful studies have been carried out in order to determine the effects of heating rates up to 15 K.s-1 on precision at low dose and reusability. It is concluded that LiF:MCP (GR-200) can be used at heating rates as high as 15 K.s-1 to a maximum temperature of 270°C for 12 s with, however, a residual signal of 2% under these conditions.

AB - Above a critical temperature of 270°C, heating for even the order of seconds, leads to irreversible changes in the sensitivity and glow curve structure of LiF:MCP. This limitation suggests a potential disadvantage in the use of LIF:MCP at the high heating rates required for maximum throughput in personnel and environmental dosimetry. The maximum temperature of the glow peak is found to increase very rapidly from 210°C at 1.2 K.s-1 to 280-285°C at 20 K.s-1. Careful studies have been carried out in order to determine the effects of heating rates up to 15 K.s-1 on precision at low dose and reusability. It is concluded that LiF:MCP (GR-200) can be used at heating rates as high as 15 K.s-1 to a maximum temperature of 270°C for 12 s with, however, a residual signal of 2% under these conditions.

UR - http://www.scopus.com/inward/record.url?scp=0032794350&partnerID=8YFLogxK

U2 - 10.1093/oxfordjournals.rpd.a032726

DO - 10.1093/oxfordjournals.rpd.a032726

M3 - Article

AN - SCOPUS:0032794350

SN - 0144-8420

VL - 84

SP - 235

EP - 238

JO - Radiation Protection Dosimetry

JF - Radiation Protection Dosimetry

IS - 1-4

ER -

Investigation of the glow peak parameters, reusability and dosimetric precision of LiF:Mg,Cu,P at high heating rates up to 20 K.s^-1

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this