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Funct. Mater. 2017; 24 (2): 341-344.

doi:https://doi.org/10.15407/fm24.02.341

New phoswich detector based on LFS and p-terphenyl scintillators coupled to micro pixel avalanche photodiode

F.Ahmadov1,3, F.Abdullayev1, G.Ahmadov1,2,3, A.Sadigov1,3, Z.Sadygov1,2,3,4, R.Madatov1, S.Suleymanov1,3, R.Akberov2,3, N.Heydarov1, M.Nazarov1

1Azerbaijan National Academy of Sciences- AD and IRP, Baku, Azerbaijan
2Joint Institute for Nuclear Research, Dubna, Russia
3National Nuclear Research Centre of MCHT, Baku, Azerbaijan
4Zecotek Photonics Pte, Ltd., Vancouver, Canada

Abstract: 

This paper presents the results of phoswich detector which developed on the basis of micro pixel avalanche photodiode and LFS+p-terphenyl scintillators. The beta particles and gamma rays detection performance of the phoswich detector (LFS+p-terphenyl) was investigated. The energy resolution of monochromatic electron was 23 % (625 keV). The detected count ratio of beta particle and gamma ray was about 37 %. It was obtained that this type of phoswich detector discriminates between gamma rays and beta particles due to the differences in the light decay time of scintillators.

Keywords: 
phoswich detector, LFS+p-terphenyl scintillators, beta particle, gamma ray.
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