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Yamagishi, Hideshi*; To, Kentaro
JAEA-Research 2011-050, 16 Pages, 2012/10
For development of two-dimensional position sensitive (2-D) neutron detectors with fast response and high spatial resolution, an ASIC with fast response and low noise performances is required. The MP8 and MP16, consisting of p-MOSFETs, with high g and low noise have been proposed (1) to develop the ASIC. In this paper a simple low noise amplifier (LNA) was designed and the noise power and the noise figure were analytically calculated. The results were also applied to LNAs using MP8 or MP16 configuration. The results showed that the MP8 and MP16 had enough performances for the ASIC.
Yamagishi, Hideshi*; To, Kentaro
JAEA-Technology 2010-030, 16 Pages, 2010/09
In two-dimensional position sensitive (2-D) neutron detectors used for neutron scattering experiments in the J-PARC, it is required that very small pulse signals consisted of several hundred channels should be measured with discriminating form noises and ray signals and converted from analogue to digital signals in real time. To establish performances of neutron detectors such as fast response and a very small spatial resolution, multi-channel small signals should be measured and the signal processing should be carried out with high S/N ratios. For development of multi-channel electronics with fast response and very low noise, manufacture of an application specific integrated circuits (ASICs) with high performances is indispensable for the 2-D neutron detectors. Therefore, MOSFETs with high gm and low noise required for the ASIC were designed and the noise performances were studied and estimated.
Yamagishi, Hideshi*; To, Kentaro; Sakasai, Kaoru; Nakamura, Tatsuya; Soyama, Kazuhiko
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no abstracts in English