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Characterisation of Gd2O2S:Pr phosphor screens for water window X-ray detection

Research output: Contribution to journalArticle

George Fern, Terry Ireland, Jack Silver, Robert Withnall, Alan Michette, Chris Mcfaul, Slawka Pfauntsch

Original languageEnglish
Pages (from-to)434 - 439
Number of pages6
JournalNuclear Instruments & Methods In Physics Research Section A, Accelerators, Spectrometers, Detectors And Associated Equipment
Volume600
Issue number2
DOIs
Publication statusPublished - 1 Mar 2009

King's Authors

Abstract

A soft X-ray scintillator phosphor (Gd2O2S:Pr) has been synthesised which is composed of discrete crystals of 120 x 150 nm average size. This material has been deposited onto a transparent substrate so that it can be used to detect X-rays generated by a laser generated plasma. A photodiode has then been used to quantify the intensity of emission by the phosphor slide. This nano-crystalline Gd2O2S:Pr phosphor shows greatly enhanced signal over a commercially available phosphor with larger particle size. (C) 2008 Elsevier B.V. All rights reserved.

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