Abstract:A: Fast neutron detectors with an active area of 80 mm 2 based on surface-barrier VPE GaAs structures were fabricated and tested. Polyethylene with density of 0.90 g/cm 3 was used as a converter layer. The recoil-proton surface-barrier sensor was fabricated on high purity VPE GaAs epilayers with a thickness of 50 µm. The neutron detection efficiency measured with a 241 Am-Be source was 1.30 • 10 −3 puls./neutr. for the PE converter thickness of 670 µm. The signal-togamma-background ratio was at the level of 50… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.