نتایج جستجو برای: semiconductor detector

تعداد نتایج: 117688  

Journal: :journal of medical signals and sensors 0
mohsen hajizadeh-safar m ghorbani s khoshkharam z ashrafi

gamma camera is an important apparatus in nuclear medicine imaging. its detection part is consists of a scintillation detector with aheavy collimator. substitution of semiconductor detectors instead of scintillator in these cameras has been effectively studied. in this study, it is aimed to introduce a new design of p-n semiconductor detector array for nuclear medicine imaging. a p-n semiconduc...

Objective(s): The energy resolution of a cadmium-zinc-telluride (CZT) solid-state semiconductor detector is about 5%, and is superior to the resolution of the conventional Anger type detector which is 10%. Also, the window width of the high-energy part and of the low-energy part of a photo peak window can be changed separately. In this study, we used a semiconductor detector and examined the ef...

Journal: :asia oceania journal of nuclear medicine and biology 0
yasuyuki takahashi department of nuclear medicine technology, gunma prefectural college of health sciences, maebashi, japan masao miyagawa department of radiology, ehime university graduate school of medicine, toon, japan yoshiko nishiyama department of radiology, ehime university graduate school of medicine, toon, japan naoto kawaguchi department of radiology, ehime university graduate school of medicine, toon, japan hayato ishimura department of radiological technology, ehime university hospital, toon, japan teruhito mochizuki department of radiology, ehime university graduate school of medicine, toon, japan

objective(s): the energy resolution of a cadmium-zinc-telluride (czt) solid-state semiconductor detector is about 5%, and is superior to the resolution of the conventional anger type detector which is 10%. also, the window width of the high-energy part and of the low-energy part of a photo peak window can be changed separately. in this study, we used a semiconductor detector and examined the ef...

Journal: :MAKARA Journal of Technology Series 2014

Journal: :Nuclear Instruments and Methods 1967

1999
A. Castoldi C. Fiorini C. Guazzoni A. Longoni L. Strüder

Recent technological developments and new topology designs have made semiconductor drift detectors ideal devices for high-resolution x-ray spectrometry. In this paper the basic topology of a semiconductor drift detector with on-chip electronics specially designed for x-ray spectrometry is reviewed. These devices have been used for the first time in x-ray and g-ray spectroscopy applications. In ...

ژورنال: سنجش و ایمنی پرتو 2014

During the last few years, real time gamma and neutron dosimeters have been developed and semiconductor diodes are frequently used in these dosimeters. Semiconductor diodes are used to charged particle detection. For sensitizing the detector to neutrons, a converter layer is contacted on the front surfaces of them. Incident neutrons interact with the converter and produce charged particles that...

2006
A. Kastalsky S. Luryi B. Spivak

We propose a new scintillation-type detector in which high-energy radiation generates electron–hole pairs in a direct-gap semiconductor material that subsequently recombine producing infrared light to be registered by a photo-detector. The key issue is how to make the semiconductor essentially transparent to its own infrared light, so that photons generated deep inside the semiconductor could r...

2012
A. Garfagnini

The study of neutrinoless double beta decay (DBD) is the only presently known approach to the fundamental question if the neutrino is a Majorana particle, i.e. its own anti-particle. The observation of neutrinoless DBD would not only establish the Majorana nature of the neutrino but also allow to determine its effective mass if the nuclear matrix elements are given. The status of experiments un...

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