Investigation of the Dependence of the Yield of Neutrons and Protons of the DD Reaction from Ti and CVD Diamond on the Target Rotation Angle

M. A. Negodaev; Негодаев М. А.; S. A. Meshaninov; Мещанинов С. А.; K. K. Artemev; Артемьев К. К.; N. B. Rodionov; Родионов Н. Б.; V. N. Amosov; Амосов В. Н.; V. I. Tsekhosh; Цехош В. И.; A. F. Popovich; Попович А. Ф.; K. V. Shpakov; Шпаков К. В.; A. S. Rusetskii; Русецкий А. С.; D. A. Skopintsev; Скопинцев Д. А.

doi:10.31857/S1028096023020073

Investigation of the Dependence of the Yield of Neutrons and Protons of the DD Reaction from Ti and CVD Diamond on the Target Rotation Angle

Authors: Negodaev M.A.¹, Meshaninov S.A.², Artemev K.K.², Rodionov N.B.², Amosov V.N.², Tsekhosh V.I.¹, Popovich A.F.¹, Shpakov K.V.¹, Rusetskii A.S.¹, Skopintsev D.A.²
Affiliations:
1. P.N. Lebedev Physical Institute, RAS
2. Insitution “Project Center ITER”, Private Institution of the State Atomic Energy Corporation Rosatom
Issue: No 2 (2023)
Pages: 3-8
Section: Articles
URL: https://freezetech.ru/1028-0960/article/view/664604
DOI: https://doi.org/10.31857/S1028096023020073
EDN: https://elibrary.ru/DSKWEQ
ID: 664604

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Abstract

At the HELIS ion accelerator, the dependence of the yield of nuclear DD reaction products (neutrons and protons) on the angle of rotation of a Ti and CVD diamond target relative to the axis of the D⁺ ion beam at energies E ≤ 35 keV was studied. Neutron detection was carried out by two independent methods: proportional counters filled with ³He and a scintillation detector with a stilbene crystal. Protons were detected using a diamond detector. The detectors were located on the side and behind the target. The CVD diamond target had a polycrystalline structure and texture with (100) grain orientation. The crystal structure of the titanium target was homogeneous and isotropic. The measurements showed the dependence of the neutron flux recorded by the detectors located on the side and behind the target on the orientation of the target made of textured CVD diamond in the deuterium ion beam at energies of 25 and 30 keV. The proton yield from the CVD diamond target showed a dependence on the target rotation angle at an energy of 25 keV. For the Ti target, no such effects were observed. The orientational dependence in the yield of neutrons and protons from textured diamond is explained by the effect of channeling deuterium ions in its structure.

Keywords

yield of DD reaction, interaction of neutrons with matter, ion accelerator, neutron detector, CVD diamond.

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