Title :
On spectrometric performance of GaAs-based radiation detectors
Author :
F. Dubecky;B. Zat´ko;J. Darmo;M. Sekacova;M. Krempasky;V. Necas;S. Hlavac;M. Rucek;R. Senderak;B. Szentpali
Author_Institution :
Inst. of Electr. Eng., Acad. of Sci., Bratislava, Slovakia
Abstract :
The basic problems and advantages related to spectrometric applications of GaAs-based radiation detectors for the X- and /spl gamma/-ray region are discussed. Two types of detectors are tested, based on (i) semi-insulating GaAs bulk substrate and (ii) vapor phase epitaxy GaAs. Pulse height spectra for detection of /sup 241/Am and /sup 57/Co radionuclide decay standards are demonstrated. With a small volume GaAs detector energy resolution <1 keV is achievable at room temperature. The necessity of a low noise F-E readout electronic chain is demonstrated.
Keywords :
"Spectroscopy","Radiation detectors","Gallium arsenide","Phase detection","Testing","Substrates","Epitaxial growth","Gas detectors","Energy resolution","Temperature"
Conference_Titel :
Advanced Semiconductor Devices and Microsystems, 2000. ASDAM 2000. The Third International EuroConference on
Print_ISBN :
0-7803-5939-9
DOI :
10.1109/ASDAM.2000.889548
