Influence of active volume on detection efficiency of GaAs neutron detectors

Autor:	Pavol Boháček, F. Dubecky, Vladimír Nečas, K. Sedlackova, B. Zafko, A. Sagatova
Rok vydání:	2012
Předmět:	Materials science Physics::Instrumentation and Detectors business.industry Electrode Monte Carlo method Detector Schottky diode Optoelectronics Neutron detection Substrate (electronics) Semiconductor device business Neutron temperature
Zdroj:	The Ninth International Conference on Advanced Semiconductor Devices and Mircosystems.
Popis:	The semi-insulating (SI) GaAs detectors prepared from bulk LEC (Liquid Encapsulated Czochralski) substrate polished down from both sides to 270 µm were tested as detectors of fast neutrons. The HDPE (High Density PolyEthylene) neutron converter layer was applied on the Schottky electrode using PP (PolyPropylene) glue. The influence of the detector active volume (modified via different reverse voltage applied) on the detection efficiency was studied using 239Pu-Be source of fast neutrons. The obtained experimental results were in agreement with the simulation predictions carried out using Monte Carlo radiation transport computer code MCNPX (Monte Carlo N-Particle eXtended).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ce26e5704b86ae88ea44df28bc95f780 https://doi.org/10.1109/asdam.2012.6418581 Zobrazit plný text záznamu