نگارستانی, علی
دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته کرمان
[ 1 ] - آشکارسازی پرتوهای آلفا با استفاده از کارکرد آشکارسازهای گازی مقیاس ریز در مد SQS
In gas detectors with UV absorbing gas mixture, the Self-Quenched Streamer (SQS) mode can be achieved following the proportional mode, which leads to appear the light column. In this study, the design, simulation and construction of three micro pattern gas-detector, THGEM, with different geometric dimensions are presented. Moreover, the ability of operation in SQS mode to determine incident ray...
[ 2 ] - طراحی و ساخت آشکارسازRETGEM سه گانه
The aim of this paper is to design, manufacture and test the first triple RETGEM detector. Using resistive electrode in RETGEM detectors made them more robust against the electrical discharge with respect to THGEM detectors. However, even these robust detectors are not protected against electrical discharge at gains higher than 105. Studying the role of dimensions of the triple RETGEMS detector...
[ 3 ] - اثر میدان مغناطیسی ضعیف بر ضریب نفوذ گاز رادن
Various studies have been done on the effective factors that cause the emanation of radon gas as the earthquake forecast from the earth. In this study, Magnetic field is examined and the effect of weak magnetic fields of up to 40 gauss applied to paper and aluminum membranes is measured. The results indicate an increase in the diffusion coefficient versus the increase of the applied magnetic fi...
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