Can Pr-doped YAP scintillator perform better?

Martin Nikl; Jiri A. Mares; Anna Vedda; Mauro Fasoli; Valentin Laguta; Eva Mihokova; Jan Pejchal; Mariya Zhuravleva; Akira Yoshikawa; Karel Nejezchleb

doi:10.1109/TNS.2010.2043116

Can Pr-doped YAP scintillator perform better?

Martin Nikl, Jiri A. Mares, Anna Vedda, Mauro Fasoli, Valentin Laguta, Eva Mihokova, Jan Pejchal, Mariya Zhuravleva, Akira Yoshikawa, Karel Nejezchleb

IMR - Materials Design Division

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A numerous set of Pr-doped YAP single crystals was prepared using Czochralski and micro-pulling down methods. Crystals codoped by bi-, tri- and tetravalent ions were prepared by the latter method as well. The scintillation performance of all the prepared materials was evaluated using radioluminescence, photoelectron yield and scintillation decay measurements at room temperature. The influence of shallow traps was studied by means of thermoluminescence in the 10-350 K temperature range. Though the intrinsic scintillation efficiency of Pr-doped YAP is higher than that of YAP:Ce, enhanced delayed radiative recombination processes are found to be responsible for lower-than-expected photoelectron yield of the former system. The possibilities of further optimization of Pr-doped YAP scintillator are discussed.

Original language	English
Article number	5485127
Pages (from-to)	1168-1174
Number of pages	7
Journal	IEEE Transactions on Nuclear Science
Volume	57
Issue number	3 PART 2
DOIs	https://doi.org/10.1109/TNS.2010.2043116
Publication status	Published - 2010 Jun

Keywords

Luminescence
Photoelectron yield
Pr-doped YAP
Scintillator
Thermoluminescence

Access to Document

10.1109/TNS.2010.2043116

Cite this

@article{c227d7b7034c4a5996070c6cf0e1438e,

title = "Can Pr-doped YAP scintillator perform better?",

abstract = "A numerous set of Pr-doped YAP single crystals was prepared using Czochralski and micro-pulling down methods. Crystals codoped by bi-, tri- and tetravalent ions were prepared by the latter method as well. The scintillation performance of all the prepared materials was evaluated using radioluminescence, photoelectron yield and scintillation decay measurements at room temperature. The influence of shallow traps was studied by means of thermoluminescence in the 10-350 K temperature range. Though the intrinsic scintillation efficiency of Pr-doped YAP is higher than that of YAP:Ce, enhanced delayed radiative recombination processes are found to be responsible for lower-than-expected photoelectron yield of the former system. The possibilities of further optimization of Pr-doped YAP scintillator are discussed.",

keywords = "Luminescence, Photoelectron yield, Pr-doped YAP, Scintillator, Thermoluminescence",

author = "Martin Nikl and Mares, {Jiri A.} and Anna Vedda and Mauro Fasoli and Valentin Laguta and Eva Mihokova and Jan Pejchal and Mariya Zhuravleva and Akira Yoshikawa and Karel Nejezchleb",

note = "Funding Information: Manuscript received June 29, 2009; revised September 25, 2009; accepted February 04, 2010. Date of current version June 16, 2010. This work was supported in part by the Czech GAAV project M100100910, in part by DESY project I-20090104 EC, and in part by the Italian CARIPLO Foundation project “Energy transfer and trapping phenomena in nano-structured scintillator materials” (2008–2011). JSPS Postdoctoral Fellowship for Foreign Researchers Program P08055 (JP) is also acknowledged.",

year = "2010",

month = jun,

doi = "10.1109/TNS.2010.2043116",

language = "English",

volume = "57",

pages = "1168--1174",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",