Electrical and detection performance of radiation detector based on bulk semi-insulating InP:Fe: role of detector volume

Author

B. Zat´ko;F. Dubecky;J. Darmo;P. Euthymiou;V. Necas;M. Krempasky;M. Sekacova;D. Korytar;O. Csabay;L. Harmatha;P.G. Pelfer

Author_Institution

Inst. of Electr. Eng., Czechoslovak Acad. of Sci., Bratislava, Slovakia

fYear

2000

Firstpage

429

Lastpage

432

Abstract

In this work study of bulk semi-insulating (SI) InP:Fe-based particle detectors with emphasise to the role of detector volume is presented. Detectors based on three various materials with active contact area between 0.3-5.5 mm/sup 2/ and various base length, 190, 400, and 1830 /spl mu/m were fabricated and tested. Obtained attenuation volume ranges between 0.12 and 5.7 mm/sup 3/. Detection performance of detectors was tested at temperature 230 K. Charge collection efficiency and energy resolution tested using /spl gamma/-ray sources (/sup 241/Am, /sup 57/Co) are demonstrated. Problems of measurement at voltages >1 kV necessary for detectors with long base (>500 /spl mu/m) and architecture of a "large volume" radiation detector based on bulk SI InP applicable in detection of solar neutrino are discussed.

Keywords

"Radiation detectors","Gamma ray detection","Gamma ray detectors","Gas detectors","Silicon radiation detectors","Contacts","Materials testing","Attenuation","Temperature","Energy resolution"

Publisher

ieee

Conference_Titel

Advanced Semiconductor Devices and Microsystems, 2000. ASDAM 2000. The Third International EuroConference on

Print_ISBN

0-7803-5939-9

Type

conf

DOI

10.1109/ASDAM.2000.889537

Filename

889537