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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 4 — Feb. 13, 2012
  • pp: 3424–3433

Optical features of a LiF crystal soft x-ray imaging detector irradiated by free electron laser pulses

Tatiana Pikuz, Anatoly Faenov, Yuji Fukuda, Masaki Kando, Paul Bolton, Alexander Mitrofanov, Alexander Vinogradov, Mitsuru Nagasono, Haruhiko Ohashi, Makina Yabashi, Kensuke Tono, Yashinori Senba, Tadashi Togashi, and Tetsuya Ishikawa  »View Author Affiliations


Optics Express, Vol. 20, Issue 4, pp. 3424-3433 (2012)
http://dx.doi.org/10.1364/OE.20.003424


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Abstract

Optical features of point defects photoluminescence in LiF crystals, irradiated by soft X-ray pulses of the Free Electron Laser with wavelengths of 17.2 – 61.5 nm, were measured. We found that peak of photoluminescence spectra lies near of 530 nm and are associated with emission of F3+ centers. Our results suggest that redistribution of photoluminescence peak intensity from the red to the green part of the spectra is associated with a shortening of the applied laser pulses down to pico - or femtosecond durations. Dependence of peak intensity of photoluminescence spectra from the soft X-ray irradiation fluence was measured and the absence of quenching phenomena, even at relatively high fluencies was found, which is very important for wide applications of LiF crystal X-ray imaging detectors.

© 2012 OSA

OCIS Codes
(110.7440) Imaging systems : X-ray imaging
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers

ToC Category:
Imaging Systems

History
Original Manuscript: October 31, 2011
Revised Manuscript: December 16, 2011
Manuscript Accepted: January 4, 2012
Published: January 30, 2012

Citation
Tatiana Pikuz, Anatoly Faenov, Yuji Fukuda, Masaki Kando, Paul Bolton, Alexander Mitrofanov, Alexander Vinogradov, Mitsuru Nagasono, Haruhiko Ohashi, Makina Yabashi, Kensuke Tono, Yashinori Senba, Tadashi Togashi, and Tetsuya Ishikawa, "Optical features of a LiF crystal soft x-ray imaging detector irradiated by free electron laser pulses," Opt. Express 20, 3424-3433 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-4-3424


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