Study of sensitivity change of OSL signals from quartz and feldspars as a function of preheat temperature

H. Jungner; L. Bøtter-Jensen

doi:10.1016/1350-4487(94)90110-4

Study of sensitivity change of OSL signals from quartz and feldspars as a function of preheat temperature

H. Jungner, L. Bøtter-Jensen

Research output: Contribution to journal › Journal article › Research

Abstract

Optically stimulated luminescence (OSL) signals from feldspar and quartz samples were studied using infrared (860 nm) and green light (420-575 nm) stimulation. A serious problem connected with the regeneration technique used for dating is associated with a change of OSL sensitivity to radiation in the couse of the measurement process. A typical effect seen is a large increase of the apparent strength of our beta source when calibrated against a gamma source. If the regeneration procedure is used, it is shown that the sensitivity increases up to similar to 50% during the measurement process and as a result, the equivalent dose (ED) would be underestimated. A study of sensitivity changes in feldspars and quartz was carried out with emphasis on the effect of preheat and annealing on the OSL signal. Measurement results obtained are presented, and possible elimination of errors in dating caused by sensitivity changes is discussed.

Original language	English
Journal	Radiation Measurements
Volume	23
Issue number	2-3
Pages (from-to)	621-624
ISSN	1350-4487
DOIs	https://doi.org/10.1016/1350-4487(94)90110-4
Publication status	Published - 1994

Access to Document

10.1016/1350-4487(94)90110-4

OpenUrl availability

Full text

Cite this

@article{3025c71bd774451c99d7bb48ce259e10,

title = "Study of sensitivity change of OSL signals from quartz and feldspars as a function of preheat temperature",

abstract = "Optically stimulated luminescence (OSL) signals from feldspar and quartz samples were studied using infrared (860 nm) and green light (420-575 nm) stimulation. A serious problem connected with the regeneration technique used for dating is associated with a change of OSL sensitivity to radiation in the couse of the measurement process. A typical effect seen is a large increase of the apparent strength of our beta source when calibrated against a gamma source. If the regeneration procedure is used, it is shown that the sensitivity increases up to similar to 50% during the measurement process and as a result, the equivalent dose (ED) would be underestimated. A study of sensitivity changes in feldspars and quartz was carried out with emphasis on the effect of preheat and annealing on the OSL signal. Measurement results obtained are presented, and possible elimination of errors in dating caused by sensitivity changes is discussed.",

keywords = "Nuklear sikkerhed og str{\aa}lingsbeskyttelse",

author = "H. Jungner and L. B{\o}tter-Jensen",

year = "1994",

doi = "10.1016/1350-4487(94)90110-4",

language = "English",

volume = "23",

pages = "621--624",

journal = "Radiation Measurements",

issn = "1350-4487",

publisher = "Pergamon Press",

number = "2-3",

}

TY - JOUR

T1 - Study of sensitivity change of OSL signals from quartz and feldspars as a function of preheat temperature

AU - Jungner, H.

AU - Bøtter-Jensen, L.

PY - 1994

Y1 - 1994

N2 - Optically stimulated luminescence (OSL) signals from feldspar and quartz samples were studied using infrared (860 nm) and green light (420-575 nm) stimulation. A serious problem connected with the regeneration technique used for dating is associated with a change of OSL sensitivity to radiation in the couse of the measurement process. A typical effect seen is a large increase of the apparent strength of our beta source when calibrated against a gamma source. If the regeneration procedure is used, it is shown that the sensitivity increases up to similar to 50% during the measurement process and as a result, the equivalent dose (ED) would be underestimated. A study of sensitivity changes in feldspars and quartz was carried out with emphasis on the effect of preheat and annealing on the OSL signal. Measurement results obtained are presented, and possible elimination of errors in dating caused by sensitivity changes is discussed.

AB - Optically stimulated luminescence (OSL) signals from feldspar and quartz samples were studied using infrared (860 nm) and green light (420-575 nm) stimulation. A serious problem connected with the regeneration technique used for dating is associated with a change of OSL sensitivity to radiation in the couse of the measurement process. A typical effect seen is a large increase of the apparent strength of our beta source when calibrated against a gamma source. If the regeneration procedure is used, it is shown that the sensitivity increases up to similar to 50% during the measurement process and as a result, the equivalent dose (ED) would be underestimated. A study of sensitivity changes in feldspars and quartz was carried out with emphasis on the effect of preheat and annealing on the OSL signal. Measurement results obtained are presented, and possible elimination of errors in dating caused by sensitivity changes is discussed.

KW - Nuklear sikkerhed og strålingsbeskyttelse

U2 - 10.1016/1350-4487(94)90110-4

DO - 10.1016/1350-4487(94)90110-4

M3 - Journal article

SN - 1350-4487

VL - 23

SP - 621

EP - 624

JO - Radiation Measurements

JF - Radiation Measurements

IS - 2-3

ER -

Study of sensitivity change of OSL signals from quartz and feldspars as a function of preheat temperature

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this