Development of a large-area silicon α-particle detector

Linh T Tran; Dale A Prokopovich; Michael L F Lerch; Marco Petasecca; Rainer Siegele; Mark I Reinhard; Vladimir Perevertaylo; Anatoly B Rosenfeld

doi:10.1016/j.apradiso.2014.06.009

Development of a large-area silicon α-particle detector

Appl Radiat Isot. 2014 Sep:92:96-101. doi: 10.1016/j.apradiso.2014.06.009. Epub 2014 Jun 21.

Authors

Linh T Tran¹, Dale A Prokopovich², Michael L F Lerch³, Marco Petasecca³, Rainer Siegele², Mark I Reinhard², Vladimir Perevertaylo⁴, Anatoly B Rosenfeld³

Affiliations

¹ Centre for Medical Radiation Physics, University of Wollongong, Wollongong 2522, NSW, Australia. Electronic address: tlt822@uowmail.edu.au.
² Australian Nuclear Science and Technology Organization (ANSTO), Lucas Heights, NSW, Australia.
³ Centre for Medical Radiation Physics, University of Wollongong, Wollongong 2522, NSW, Australia.
⁴ SPA-BIT, Kiev, Ukraine.

PMID: 25016328
DOI: 10.1016/j.apradiso.2014.06.009

Abstract

Circular ion-implanted silicon detector of α-particles with a large, 5-cm(2), sensitive area has been developed. An advantage of the detector is that the detector surface is easily cleanable with chemicals. The hardened surface of the detector shows no signs of deterioration of the spectroscopic and electrical characteristics upon repeated cleaning. The energy resolution along the diameters of the detector was (1.0±0.1)% for the 5.486-MeV α-particles. Detailed tests of the charge collection efficiency and uniformity of the detector entrance window were also performed with a 5.5-MeV He(2+) microbeam.

Keywords: Charge particle detector; Dead layer; Microprobe.