Enhancement of DD-reaction yields from the Ti/TiO2:Dx heterostructure by H+ and N+ ion beams using the GELIS setup

Phys. Rev. Accel. Beams

Rusetskiĭ

et al. 2019

At the ion accelerator HELIS at the LPI, the neutron yield is investigated from a deuteron-deuteron (DD) reaction in a deuterated Pd target, during an irradiation of its surface by a 20 keV deuterium (D) ion beam. The measurements of the neutron flux in the D beam direction are performed in dependence on the target angle β with respect to the D beam axis using a multichannel detector based on He 3 counters. A significant anisotropy in the neutron yield is observed, and it was higher by a factor of 2 at β ¼ 0 compared to that at β ¼ AE30°. The possible reasons for the anisotropy, including D ion channeling, are discussed. The orientation effect of increasing the relative probability of the DD reaction in Pd due to channeling was investigated by computer simulations using the BCM-2.0 code. The numerically obtained 20 keV D trajectories allow calculating the flux density of channeled D in dependence on the penetration depth and angle of incidence. The enhanced D flux density between crystal planes at a zero incident angle with respect to (200) Pd planes allows a qualitative explanation of the increase of the neutron yield in the DD reaction.

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Section: Introductionmentioning

confidence: 99%

Orientation effect in the neutron yield in deuterated Pd target bombarded by deuterium ion beam

Phys. Rev. Accel. Beams

Rusetskiĭ

et al. 2019

show abstract

“…In our previous investigations [1,2] of DD reaction in the crystal targets (Pd, Ti), an anisotropy was observed: the neutron flux along the beam direction was higher than that in the transverse direction. This effect could be explained by a DD-reaction proceeding not with creation of a compound nucleus 4 He, but through partial penetration of the deuteron in the nucleus. Particularly large anisotropy was observed using a polycrystalline CVD diamond target.…”

mentioning

confidence: 99%

“…This effect could be explained by a DD-reaction proceeding not with creation of a compound nucleus 4 He, but through partial penetration of the deuteron in the nucleus. Particularly large anisotropy was observed using a polycrystalline CVD diamond target.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Channeling effect in polycrystalline deuterium-saturated CVD diamond target bombarded by deuterium ion beam

Bagulya

Nuclear Instruments and Methods in Physics Research Section B:

et al. 2015

“…The interactions of the deuterium beam with deuterium enriched fixed targets are investigated in [1][2][3][4] using HELIS accelerator facility at the P.N. Lebedev Physical Institute of the Russian Academy of Sciences (LPI).…”

Section: Introductionmentioning

confidence: 99%

Orientation effect in d(d,n)3He reaction initiated by 20 keV deuterons at channeling in textured CVD-Diamond target

Bagulya

Nuclear Instruments and Methods in Physics Research Section B:

et al. 2017