Abstract
A YAP:Ce scintillation crystal has a decay time that is one order of magnitude shorter than that of Nal:T1, and therefore this allows its use for rather high counting rates. The optimal thickness of a YAP:Ce crystal for 57Fe and119Sn Mössbauer spectroscopy is 0.35 mm. The photomultiplier tube R6095 (Hamamatsu) is used in the scintillation detector. The signal is amplified by means of a fast preamplifier constructed on the base of a NE 5539 operational amplifier. Standard pulse-height discriminators, used with the NaI:TI scintillation detector and proportional counter, respectively, cannot be used with a YAP:Ce scintillation detector, because the duration of the pulses on the preamplifier output is less than 200 ns. A fast pulse-height discriminator was built using two fast MAC 160 comparators.
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Mashlan, M., Jancik, D., Kholmetskii, A.L. (1999). Yap:Ce Scintillation Detector for Transmission Mössbauer Spectroscopy. In: Miglierini, M., Petridis, D. (eds) Mössbauer Spectroscopy in Materials Science. NATO Science Series, vol 66. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4548-0_36
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DOI: https://doi.org/10.1007/978-94-011-4548-0_36
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