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Information × Registration Number 0210U003765, 0108U003691 , R & D reports Title Development of the polarized target with high polarization based on ammonia target material for gy spin physics. popup.stage_title Head Lukhanin Oleksiy Oleksandrovich, Registration Date 14-01-2010 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Research object - polarized proton target, high-frequency system of pumping of polarization, waveguide . Purpose of work - the development and making of the high-frequency system of pumping of polarization for the polarized proton target. Method of the investigations-eksperimental measuring, physical design of processes, analysis. Results and their novelty . As a result of project performance following results have been received: 1 .The polarization pump system is developed and together with JINR (Dubna) is made and established in the polarized proton target on accelerator U-70 in IFVE (Protvino). Full absorption of high-frequency capacity in waveguide path of the polarization pumping system is about of 4.55 dB. At application of high-frequency generator with power 120 mW the power which reach to the resonator is 40 mW one.Such power coincides with cooling power of refrigerator and is optimal for pumping polarization. 2. JINR,IFVE and KIPTcollaboration executed vacuum and cryogenic tests of the of the polarized target systems. The start of 3He-4He dilution refrigerator was done and the operating modes are attained. 3. The software is developed for definition of enlargement factor for proton polarization at a dynamic pumping by processing of experimental absorption NMR spectra of protons. Scientific research results will be used in experiment on system pi-eta meson asymmetry measurement with the polarized proton target and a negative pi meson beam, planned for 2010. Implementation: the operating polarized proton target of the horizontal type Application field: Polarized nuclear targets, dynamic nuclear polarization Product Description popup.authors Бєляєв Андрій Анатолійович Догюст Ірина Вікторівна Луханін Олексій Олександрович орбенко Євген Степанович Споров Євген Олександрович popup.nrat_date 2020-04-02 Close