Thermoluminescence in KI, KBr, NaCl and NaF crystals irradiated at room temperature

Nonequilibrium plasma radiation emitted from laser targets

“…The difference of 30 K between the maxima of the flow peak and the main stored-energy peak found in this work is rather larger than the difference reported by Bunch and Pearlstein (1969). However, it is known that the single glow peak observed in heavily irradiated alkali halides moves towards higher temperatures with increasing dose (Mariani andAlvarez Rivas 1978, Ausin andAlvarez Rivas 1974). This could explain the small difference of about 4 K found by Bunch and Pearlstein (1969).…”

“…This is supported by the fact that the light yield per vacancy centre in these heavily irradiated samples is the same? within the experimental errors, as in less irradiated samples: 2 x photons per vacancy centre (Mariani and Alvarez Rivas 1978). Nevertheless, it cannot be ruled out that in these heavily irradiated samples, interstitial F-centre recombinations in which light emission is forbidden might exist, in addition to recombinations in which light emission is possible (as in the less irradiated samples); stored energy is released in both types of F-centre interstitial recombinations (A E Hughes 1979 private communication).…”

“…The thermoluminescence of alkali halides irradiated at room temperature has been explained by the recombination of F-centres with interstitial halogen atoms thermally released from traps Alvarez Rivas 1972b, Mariani andAlvarez Rivas 1978) even in heavily irradiated samples Ausin and Alvarez Rivas 1974); in this case, the F-centres are previously evaporated from colloids. In agreement with this model it must be concluded that the recombination of F-centres and interstitial halogen atoms takes place while the thermoluminescence process is operative.…”

Production and reaction kinetics of radiation-induced defects in α-alumina and sapphire under ion beam irradiation

“…Under the present conditions of ion beam irradiation, an efficient defect production occurs and results in a relatively higher concentration of interstitials. The effects of various interstitial traps other than the F-type centers are thus negligible, similarly to the case of alkali halides exposed to high dose [9], and the activation energy for the migration of interstitials is successfully determined in the present case.…”

Thermoluminescence of NaF Harshaw Single Crystals Irradiated to Medium Doses

“…Aramu et al [4] while exploring the feasibility of NaF for the use in dosimetry found that NaF exhibited complex TL behaviour. Mariani and Alvarez Rivas [5] observed eight glow peaks in yor X-irradiated samples. The highest temperature glow peak at 283 "C was found to make its appearance for high exposures only.…”