Search academic texts

Information × Registration Number 0215U002371, 0111U009552 , R & D reports Title Research of radiation processes in crystalline targets, study of properties of coherent bremsstrahlung beams and research of processes of collision of protons and heavy ions in the field of ultra relativistic energies popup.stage_title Head Maslov Mykola Ivanovich, Кандидат фізико-математичних наук Registration Date 07-08-2015 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Experimental study of radiation effects on the energy resolution of the planar silicon detectors (PSD) with different initial energy resolution were performed. Methods of measure and spectrometric readout electronics for irradiated PSD over a wide dosage range were developed. The planar silicon detectors were irradiated in the accelerator "EPOS" of the Institute of High Energy Physics and Nuclear Physics KIPT by electrons with an energy of 25 MeV in a dose range from 0 to 1530 krad. It is shown that: - after a total dose of radiation PSD 1530 krad we can registered an uncooled detector line 59.54 keV X-ray radiation source 241Am with an energy resolution ~ 7 keV. Threshold noise after irradiation PSD up total dose 1530 krad is less than 28 keV at a temperature detector and spectrometric readout electronics 20 C; - Radiation detectors with different initial energy resolution smoothes variations in FWHM with increasing dose. The smoothing effect of radiation is due to the preferential formation of radiation defects in the volume of the detector and the dependence of the energy resolution of the detector from its leakage current close to the root, leakage currents increase linearly with increasing dose; - To measure the actual energy resolution PSD after irradiation must be alignment of the input parameters of the spectrometer electronics (preamplifier) ??to the changed leakage current and reverse resistance PSD. Product Description popup.authors Бочек Георгій Леонідович Бурдейний Дмитро Дмитрович Васильєв Геннадій Петрович Ганенко Володимир Борисович Деєв Олексій Степанович Кіпріч Сергій Костянтинович Каплій Олександр Андрійович Мазілов Олексій Олександрович Маслов Микола Іванович Муравська Світлана Володимирівна Наумов Сергій Вікторович Овчинник Володимир Дмитрович Потін Сергій Михайлович Шуліка Максим Юрійович Яловенко Володимир Іванович popup.nrat_date 2020-04-02 Close