Open AccessA GaAs DETECTOR FOR DARK MATTER AND SOLAR NEUTRINO RESEARCH
Author(s) -
T. J. Bowles,
A. Hime,
В. Н. Гаврин,
Yu. P. Kozlova,
E. P. Veretenkin,
А. В. Марков,
Alexander Polyakov,
V. Eremin,
E. Verbitskaya
Publication year - 2000
Language(s) - English
Resource type - Reports
DOI - 10.2172/768779
Subject(s) - detector , dark matter , neutrino , physics , neutrino detector , optoelectronics , photon , optics , nuclear physics , particle physics , neutrino oscillation
The ability to produce large GaAs crystals with the requisite electronic properties to be fabricated into charged particle and photon detectors would provide a detector medium that would find numerous applications in both applied and fundamental research. Various applications would likely include x-ray detectors on satellites, environmental monitoring, medical imaging, bore hole mining spectroscopy, searches for dark matter, and solar neutrino research. We have carried out the development of GaAs detectors using two commercial crystal growing techniques. We have shown it should be able to grow detectors with 20 cm{sup 2} area and a depletion depth of 1 mm. Detectors of this size would find immediate applications in high-resolution, room temperature, low energy gamma ray measurements. We have also arrived at an understanding of the limitations of the common techniques used to grow GaAs and have determined that it should be possible to produce larger detectors using proprietary methods