Semiconductor Physics, Quantum Electronics & Optoelectronics, 3 (2), P. 233-236 (2000)
https://doi.org/10.15407/spqeo3.02.233

PACS: 78.70.En,- q, 07.77.Ka

Scintillators based on zinc selenide and ticor for detection of charged particles

V.D.Ryzhikov, E.A.Danshin, N.G.Starzhinski, E.A.Losseva, V.V.Chernikov
Scientific and Technological Center for Radiation Instruments, Concern “Institute for Single Crystals” of NAS of Ukraine
60 Lenin ave., Kharkov, 310001, Ukraine
Phone: 380(572) 321 379; Fax: 380(572) 321391; E-mail: root@stcri.kharkov.ua

L.A.Litvinov
Department of optical and constructional crystals, Concern “Institute for Single Crystals” of NAS of Ukraine
60 Lenin ave., Kharkov, 310001, Ukraine
Phone: 380(572) 328230; Fax: 380(572) 320019; E-mail: occd@isc.kharkov.com

Semiconductor Physics, Quantum Electronics & Optoelectronics. 2000. V. 3, N 2. P. 233-236.

Abstract. Studies of charged particle detectors based on ZnSe(Te) and Al2O3(Ti+3) (ticor) optically connected with photodiodes (PD) of S3590 type are reported. The charge-sensitive preamplifier connected with PD had equivalent noise level of 420 electrons with formation time of 5 ms.

The signal value from ticor on 207Bi internal conversion electrons (ICE) with Ee = 976 keV is equivalent to the signal value from Eg = 14 keV when PD operates in the semiconductor detector mode (without a scintillator); from a-particles with Ea = 5150 keV it corresponds to 20 keV. From these results, a/b-ratio is ~ 0.28. Energy resolution of ticor on a-particles Ra with Ee = 5150 keV is 11.6 %, on ICE with Ee = 976 keV Re1/2 = 15%. Under the same conditions Ra = 3% and Re = 3.7% for single crystal ZnSe(Te). A possibility to create combined detectors of electrons and a-particles on the basis of these two scintillators is discussed.

Keywords: zinc selenide, ticor, spectrometry, charged particle.

Paper received 09.10.99; revised manuscript received 24.12.99; accepted for publication 14.03.00.

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