Universal Journal of Physics and Application Vol. 13(4), pp. 63 - 68
DOI: 10.13189/ujpa.2019.130401
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Monitoring of Neutrons Field of the WWR-SM Reactor at Reception of Phosphorus-33

Ulugbek Ashrapov ^1,*, Djalil Yusupov ¹, Munira Alieva ¹, Nodir Rustamov ^2
1 The Institute of Nuclear Physics of the Academy Sciences (INP AS), Republic of Uzbekistan
² Radiopreparat State Enterprise, Republic of Uzbekistan

ABSTRACT

In the paper results of monitoring of thermal neutrons field in vertical irradiation channels of the WWR-SM nuclear research reactor of INP AS, Tashkent, Uzbekistan has been studied with purpose of determination of mode of irradiation target sulfur-33 (S-33) and increase specific activity of phosphorus-33 (Р-33). It is shown that reception P-33 with specific activity (120-140 mCi/g) is necessary to spend irradiation targets of S-33 elemental enrichment in vertical channels of the WWR-SM reactor in the following mode: irradiation place is distance of 35-50 cm below from top point of the vertical channel, nominal power of reactor=10MW, reactor thermal neutrons stream density ≥0.7⋅10¹⁴ neutrons/cm².sec and irradiation time=320÷620 hours. Opportunity of application of S-33 as the monitor for reception of P-33 without the carrier was established. In fist time for express definition of specific activity of radionuclide P-33 in irradiation target S-33 the monitor S-33 was used

KEYWORDS
Nuclear Reactor, Thermal Neutrons, Thermo-neutron Gauge, Irradiation Target, Monitoring of Neutrons Field, Output of Phosphorus-33

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Ulugbek Ashrapov , Djalil Yusupov , Munira Alieva , Nodir Rustamov , "Monitoring of Neutrons Field of the WWR-SM Reactor at Reception of Phosphorus-33," Universal Journal of Physics and Application, Vol. 13, No. 4, pp. 63 - 68, 2019. DOI: 10.13189/ujpa.2019.130401.

(b). APA Format:
Ulugbek Ashrapov , Djalil Yusupov , Munira Alieva , Nodir Rustamov (2019). Monitoring of Neutrons Field of the WWR-SM Reactor at Reception of Phosphorus-33. Universal Journal of Physics and Application, 13(4), 63 - 68. DOI: 10.13189/ujpa.2019.130401.