Calculation of stages of the technological process of manufacture of PPD detectors using computer mathematical modeling and production of alpha radiometer on their basis
( Pp. 21-28)

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Rajapov Sali A. doktor fiziko-matematicheskih nauk; glavnyy nauchnyy sotrudnik laboratorii poluprovodnikovyh vysokochuvstvitelnyh datchikov
Institute of Physics and Technology of the Scientific and Production Association “Physics-Sun” of the Academy of Sciences of the Republic of Uzbekistan
Tashkent, Republic of Uzbekistan Rakhimov Rustam Kh. Dr. Sci. (Eng.); Head at the Laboratory No. 1
Institute of Materials Science of the SPA “Physics-Sun” of the Academy of Sciences of the Republic of Uzbekistan
Tashkent, Republic of Uzbekistan Radzhapov Begjan S. starshiy nauchnyy sotrudnik
Physical-technical Institute, SPA «Physics-Sun», Academy of Sciences of the Republic of Uzbekistan Zufarov Mars A. starshiy nauchnyy sotrudnik
Physical-technical Institute, SPA «Physics-Sun», Academy of Sciences of the Republic of Uzbekistan
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Abstract:
The article describes the developed radiometer for Express measurement of alpha radiation of radioactive elements based on a large-diameter silicon detector. The main element of the PPD detector is made using computer mathematical modeling of all stages of the technological process of manufacturing detectors, taking into account at each stage the degree of influence of the properties of the initial silicon on the electrophysical and radiometric characteristics of the detector. Detectors are manufactured for certain types of devices. The developed radiometer is designed to measure alpha radiation of natural isotopes (238U, 234U, 232Th, 226Ra, 222Rn, 218Po, 214Bi, etc.) in various environments. It also shows the principle of operation of the device, provides a block diagram of the measuring complex, describes the electronic components of the radiometer, as well as the block diagram. Signal transformations (spectrum transfer, filtering, accumulation) are implemented programmatically on the basis of a digital processing module. The device can detect the presence of specific elements in various environments, as well as protect people from the harmful effects of adverse radiation and can be used both in the field and stationary.
How to Cite:
Rajapov S.A., Rakhimov R.K., Radzhapov B.S., Zufarov M.A., (2020), CALCULATION OF STAGES OF THE TECHNOLOGICAL PROCESS OF MANUFACTURE OF PPD DETECTORS USING COMPUTER MATHEMATICAL MODELING AND PRODUCTION OF ALPHA RADIOMETER ON THEIR BASIS. Computational Nanotechnology, 2: 21-28. DOI: 10.33693/2313-223X-2020-7-2-21-28
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Keywords:
silicon, semiconductor detectors, computer mathematical modeling, radiometer, alpha radiation, amplifier, microcircuit, transistor, charge-sensitive amplifier, microcontroller.