Evaluation of Nd:BaY₂F₈ for VUV scintillator

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• 作者：Shunsuke Kurosawa ; Takayuki Yanagida ; Jan Pejchal ; Kentaro Fukuda ; Noriaki Kawaguchi ; Sumito Ishizu ; Toshihisa Suyama ; Masanori Nakagawa ; Yuui Yokota ; Martin Nikl ; Akira Yoshikawa
• 关键词：VUV scintillator ; Nd ; BaY2F8 ; Radiation response
• 刊名：Radiation Measurements
• 出版年：2013
• 出版时间：August, 2013
• 年：2013
• 卷：55
• 期：Complete
• 页码：108-111
• 全文大小：861 K

文摘

Vacuum Ultra violet (VUV) scintillators, have a short decay time around several ns, and therefore can be used in high counting rate applications. New Nd-doped BaY₂F₈ VUV scintillator crystals were successfully grown by a micro-pulling down (¦Ì-PD) method and their optical properties and radiation response were investigated. All the BaY₂F₈ samples with 0.5, 1, 3, 7 and 10?mol % Nd concentration had 5d-4f luminescence peaks at 185, 237 and 270?nm. Although this scintillator has low light output around 70?photons/5.5-MeV alpha, which was determined from our pulse height measurement, we found that the decay time of this crystal reached 13?ns which is a typical value for the VUV scintillators.