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Registration Number

0221U102375, 0119U102329 , R & D reports

Title

Experimental measurement of photonuclear reactions for simulation of stellar-nucleosynthesis processes

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Head

Chekhovska Anastasiia V.,

Registration Date

01-02-2021

Organization

National Science Center "Kharkiv Institute of Physics and Technology"

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 In the course of research using a linear accelerator of the National Science Center "Kharkiv Institute of Physics and Technology" (LINAC-300) and a high-resolution spectrometer based on the higepure germanium HP(Ge) detector CANBERRA, yields or integral cross sections of photonuclear 112Sn(g,n)111Sn, 112Sn(g,p)111mIn and 112Sn(g,p)111gIn reactions. The data obtained in the experiment were compared with calculations with the statistical theory of nuclear reactions. When comparing experimental data with theoretical predictions, special attention was paid to different variations of nuclear level density models and different models of radiation stronge function. As a result, it was found that the best agreement between the experimental data and the statistical theory of nuclear reactions is in the variations of the Fermi gas model for nuclear level density and the Brink-Axel model for the radiation stronge function in the case of 112Sn(g,n)111Sn reaction. For the 112Sn(g,p)111mIn reaction, the best agreement is with the Fermi gas model for nuclear level density and the Hartree-Fock model for the radiation stronge function. For the 112Sn(g,p)111gIn reaction, the best agreement is between the constant temperature model for the nuclear level density and the Hartree-Fock model for the radiation stronge function.

Product Description

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Chekhovska Anastasiia V.

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2021-02-01