Abstract
An investigation was made of the relaxation of the absorption spectra of pure and doped CaF//2 crystals after irradiation with a nanosecond pulse of 200 keV electrons at temperatures from 100 to 520 degree K. At sufficiently high temperatures the F-band absorption, measured immediately after the end of an electron pulse, predominated over the absorption by self-localized excitons. Photochromic color centers were generated in yttrium-doped crystals during an electron pulse. The primary products of decay of the electron excitations were found to be F-H pairs. The energy of formation E//0 of a primary pair of radiation defects was deduced from a study of the kinetics of radiation-stimulated conversion of the M//A into F//A centers and the kinetics of accumulation of the photochromic color centers. It was found that the formation of one primary pair of defects in a CaF//2 crystal required no more than 100 eV of the absorbed radiation energy.
| Original language | English |
|---|---|
| Pages (from-to) | 1509-1511 |
| Number of pages | 3 |
| Journal | Sov Phys Solid State |
| Volume | 20 |
| Issue number | 9 |
| Publication status | Published - Sep 1978 |
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ENERGY OF FORMATION OF RADIATION DEFECTS IN CaF//2 . / Lisitsyn, V. M.; Gritsenko, B. P.; Serikova, G. N.; Shtan'ko, V. F.; Yakovlev, V. Yu.
In: Sov Phys Solid State, Vol. 20, No. 9, 09.1978, p. 1509-1511.Research output: Contribution to journal › Article
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TY - JOUR
T1 - ENERGY OF FORMATION OF RADIATION DEFECTS IN CaF//2 .
AU - Lisitsyn, V. M.
AU - Gritsenko, B. P.
AU - Serikova, G. N.
AU - Shtan'ko, V. F.
AU - Yakovlev, V. Yu
PY - 1978/9
Y1 - 1978/9
N2 - An investigation was made of the relaxation of the absorption spectra of pure and doped CaF//2 crystals after irradiation with a nanosecond pulse of 200 keV electrons at temperatures from 100 to 520 degree K. At sufficiently high temperatures the F-band absorption, measured immediately after the end of an electron pulse, predominated over the absorption by self-localized excitons. Photochromic color centers were generated in yttrium-doped crystals during an electron pulse. The primary products of decay of the electron excitations were found to be F-H pairs. The energy of formation E//0 of a primary pair of radiation defects was deduced from a study of the kinetics of radiation-stimulated conversion of the M//A into F//A centers and the kinetics of accumulation of the photochromic color centers. It was found that the formation of one primary pair of defects in a CaF//2 crystal required no more than 100 eV of the absorbed radiation energy.
AB - An investigation was made of the relaxation of the absorption spectra of pure and doped CaF//2 crystals after irradiation with a nanosecond pulse of 200 keV electrons at temperatures from 100 to 520 degree K. At sufficiently high temperatures the F-band absorption, measured immediately after the end of an electron pulse, predominated over the absorption by self-localized excitons. Photochromic color centers were generated in yttrium-doped crystals during an electron pulse. The primary products of decay of the electron excitations were found to be F-H pairs. The energy of formation E//0 of a primary pair of radiation defects was deduced from a study of the kinetics of radiation-stimulated conversion of the M//A into F//A centers and the kinetics of accumulation of the photochromic color centers. It was found that the formation of one primary pair of defects in a CaF//2 crystal required no more than 100 eV of the absorbed radiation energy.
UR - http://www.scopus.com/inward/record.url?scp=0018011854&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0018011854&partnerID=8YFLogxK
M3 - Article
VL - 20
SP - 1509
EP - 1511
JO - Soviet Physics, Solid State (English translation of Fizika Tverdogo Tela)
JF - Soviet Physics, Solid State (English translation of Fizika Tverdogo Tela)
SN - 0584-5807
IS - 9
ER -