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  Photostimulated luminescence in BaX2 : Eu2+ (X=Br, Cl) X-ray storage phosphors

Secu, M., Kalchgruber, R., Schweizer, S., Spaeth, J. M., & Edgar, A. (2002). Photostimulated luminescence in BaX2: Eu2+ (X=Br, Cl) X-ray storage phosphors. Radiation Effects and Defects in Solids, 157(6-12), 957-962.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-846F-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-8470-4
Genre: Journal Article

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 Creators:
Secu, M.1, Author
Kalchgruber, R.2, Author              
Schweizer, S.1, Author
Spaeth, J. M.1, Author
Edgar, A.1, Author
Affiliations:
1Univ Gesamthsch Paderborn, Dept Phys, D-33095 Paderborn, Germany; Univ Gesamthsch Paderborn, Dept Phys, D-33095 Paderborn, Germany; Univ Victoria, Sch Chem & Phys Sci, Wellington, New Zealand, ou_persistent22              
2Guest Group Archaeometry, MPI for Nuclear Physics, Max Planck Society, ou_904552              

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Free keywords: X-ray storage phosphor; barium dihalides; photostimulated luminescence
 Abstract: The photostimulated luminescence (PSL) effect in BaX2 :Eu (2+) (X=Br, Cl) is comparable to that observed in BaFBr:Eu2+ which is used in commercial X-ray storage phosphor screens. After X- irradiation the PSL stimulation spectra of BaX2 :Eu (2+) (X=Br, Cl) single crystals are identical to the F centre absorption spectra, i.e. the F centres are the PSL-active electron trap centres. The nature of the hole centres is still unknown. The PSL response time of about 0.70 mus is within experimental error of 0.02 mus identical to the Eu2+ radiative lifetime, whereas in BaCl2 :Eu2+ the PSL response time is 0.60 mus, and thus longer than the Eu2+ radiative lifetime of 0.47 mus.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 29150
ISI: 000180483700066
 Degree: -

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Title: Radiation Effects and Defects in Solids
  Alternative Title : Radiat. Eff. Defects Solids
Source Genre: Journal
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Pages: - Volume / Issue: 157 (6-12) Sequence Number: - Start / End Page: 957 - 962 Identifier: ISSN: 1042-0150