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IEEE Transactions on Nuclear Science | 1993

A high-speed cadmium telluride radiation detector

Sueki Baba; Hiroshi Tsutsui; Kouichi Ohmori; Tetsuro Ohtsuchi; Hideo Toyoda; Hiromasa Funakoshi; Toshiyuki Kawara

A small CdTe detector capable of high repetition pulse rate with possibilities for applications in radiation monitoring and similar uses was developed. The hole transit time through the crystal was shortened by decreasing the crystal thickness of 0.3 mm (1*1 mm) and by applying fields as high as 10 kV/cm. The electron transit time, although short, was electrically elongated by applying appropriate capacitance to the amplifier, and the output pulse waveform was designed to be similar to that for the holes. High, uniform output pulses with widths of 30 ns were thus obtained. The energy resolution was 9 keV for 59.4-keV photons from /sup 241/Am using a 100-ns-response amplifier. >


Archive | 1990

X-ray image processing device

Toshiyuki Kawara; Hiroshi Tsutsui; Hiromasa Funakoshi; Yoshiyuki Yoshizumi


Archive | 2005

Imaging apparatus and correction method of image data

Yukihiro Tanizoe; Yasutoshi Yamamoto; Yoshimasa Okabe; Hiromasa Funakoshi


Archive | 1993

High sensitivity, broad band charge detecting apparatus with suppression of mixing of noise

Hiromasa Funakoshi; Takahiro Yamada


Archive | 1989

Radiation sensor and a radiation detecting apparatus using the same

Tetsuro Ohtsuchi; Hiroshi Tsutsui; Koichi Ohmori; Sueki Baba; Hiromasa Funakoshi; Toshiyuki Kawara; Yoshiyuki Yoshizumi


Archive | 1994

Charge transfer device having a plurality of vertical and horizontal charge-coupled devices with improved configurations for isolation regions and impurity implanted regions between the charge-coupled devices

Hiromasa Funakoshi; Takao Kuroda


Archive | 1998

High-sensitivity image pickup device

Ryoji Asada; Hiromasa Funakoshi; Kazuma Motoda; 一真 元田; 良次 浅田; 裕正 船越


Archive | 2009

Imaging device and driving method thereof

Hiromasa Funakoshi; Takeo Minami; Mitsuhiro Sasaki


Archive | 1997

Charge detection device and driver thereof

Hiromasa Funakoshi


Archive | 2001

Solid state imaging device having timing signal generation circuit and clamping circuit

Hiromasa Funakoshi; Ryoji Asada; Kazumasa Motoda

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