Thermoluminescence and lattice defects in LiF

Stoebe, T. G.; Watanabe, Shigueo

doi:10.1002/pssa.2210290102

Cited by 86 publications

(34 citation statements)

References 46 publications

(13 reference statements)

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“…This can explain the saturation of the traps and the daniage which can be removed only by high-teniperature (400 "C) anneal. The existence of the non-luminescent centres has been known since long [14]. The defects which can play this role (presumably related with the OH impurity) have been suggested.…”

Section: Physical Possibilitiesmentioning

confidence: 99%

A Phenomenological Model for Supralinearity and Sensitization in LiF-TLD 100

Moharil

1983

Phys. Stat. Sol. (a)

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Section: Physical Possibilitiesmentioning

confidence: 99%

A Phenomenological Model for Supralinearity and Sensitization in LiF-TLD 100

Moharil

1983

Phys. Stat. Sol. (a)

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“…In attempting to solve the problem, a quite significant attention was drawn to the development and study of LiF doped with B, Si, Mg, Cu, Ti and other dopants including lanthanides (see [4][5][6][7][8][9][10][11][12] and reference therein). Nowadays, commercial TLDs based on LiF:Mg,Ti (TLD-100/600/700) and LiF:Mg,Cu,P (TLD-100H/600H/700H) and their modifications are well accepted in the industry.…”

Section: Introductionmentioning

confidence: 99%

Thermally stimulated processes in Li and Cu doped alkali fluorides irradiated with electron beams of ultra-high dose

Mamytbekov

Tcherepanov

Слесарев

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. The thermally stimulated luminescence (TSL) and exoemission (TSE) in Li and Cu doped NaF and LiF single crystals irradiated with electron high energy electron beams of (10 MeV, doses 0.75 and 2 MGy) have been investigated. The results obtained reveal important properties that suggest that the crystals have a sufficient radiation stability and sensitivity for high energy electron beams and are promising for application as high-dose detectors of electron radiation.

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“…In an earlier paper [l] we have reported that the y-radiation induced sensitization of peak 5 remains unaltered even after complete bleaching of the residual thermoluminescence (RTL) of peak 10 (at 415 "C) by means of intense UV (253.7 nm) illumination at 300 "C for 1 h. However, the sensitization factor of peak 7 reduces from a value of 40 to 1. 3 for the same treatment. The sensitization of peak 5 was attributed to the removal (due to filling) of competing non-luminescent centres to the luminescent centres during pre-irradiation and post-annealing treatment, on lines similar to that proposed earlier by Zimmerman [2] and Stoebe and Watanabe [3].…”

Section: Introductionmentioning

confidence: 99%

“…3 for the same treatment. The sensitization of peak 5 was attributed to the removal (due to filling) of competing non-luminescent centres to the luminescent centres during pre-irradiation and post-annealing treatment, on lines similar to that proposed earlier by Zimmerman [2] and Stoebe and Watanabe [3]. Mayhugh [4] and Charles and Khan [5] have reported that a similar UV/thermal anneal at 300 "C for 1 h results in a drastic reduction in peak 10 intensity (by a factor of about 100) and also in Z3-band intensity, the fall in sensitization of peak 5 being only slight.…”

Section: Introductionmentioning

confidence: 99%

Effect of deep traps on the sensitization in LiF (TLD-100) phosphor

Chandra

Lakshmanan

Bhatt

1980

Phys. Stat. Sol. (a)

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The effect of UV (253.7 nm) bleaching at room temperature (= 25 "C) as well as at 300 "C on the intensity of peak 10 (425 "C), and on radiation induced sensitization of peak 5 (210 "C) and peak 7 (270 "C) is studied in LiF (TLD-100) as a function of UV bleaching time. Intense W irradiation at 300 "C for 1 h almost completely removes the RTL peak 10 (reduced by about a factor of 200) and the sensitization factor (8/8,,) of peak 7 reduces from 35 to 1.1. The decay of peak 10 and the decay of sensitization of peak 7 appear to follow each other very well. On the basis of results presented here it is confirmed that peak 10 is responsible for the sensitization of peak 7. The conversion of peak 10-centres to peak 7-centres is suggested as one of the possible mechanisms for the sensitization of peak 7 during the test y-irradiation of the sensitized sample.Der EinfluB einer W (253,7 nm)-Tilgung bei Zimmertemperatur (e 25 "C) und bei 300 "C auf die Intensitit des Maximum 10 (425 "C) und auf die strahlungsinduzierte Sensibilisierung des Maximum 5 (210 "C) und Maximum 7 (270 "C) wird in LiF (TLD-100) in Abhiingigkeit von der W-Tilgungsdauer untersucht. Eine intensive UV-Bestrahlung bei 300 "C von 1 h beseitigt fast vollstiindig den RTL-Peak 10 (reduziert urn etwa den Faktor 200) und der Sensibilisierungsfaktor (S/S,) von Maximum 7 verringert sich von 35 auf 1,l. Die Abnahme von Maximum 10 und die Abnahme der Sensibilisierung von Maximum 7 scheinen gut aufeinander zu folgen. Auf der Grundlage der vorgelegten Ergebnisse wird bestitigt, daB Maximum 10 fur die Sensibilisierung des Maximum 7 verantwortlich ist. Es wird angenommen, daB die Umwandlung der Maximum-10-Zentren in Maximum-7-Zentren als einer der moglichen Mechanismen fur die Sensibilisierung des Maximum 7 wiihrend der y-Bestrahlung der sensibilisierten Probe darstellt.

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Thermoluminescence and lattice defects in LiF

Cited by 86 publications

References 46 publications

A Phenomenological Model for Supralinearity and Sensitization in LiF-TLD 100

A Phenomenological Model for Supralinearity and Sensitization in LiF-TLD 100

Thermally stimulated processes in Li and Cu doped alkali fluorides irradiated with electron beams of ultra-high dose

Effect of deep traps on the sensitization in LiF (TLD-100) phosphor

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