The cross-section of the 10B(n,α)7Li reaction measured in the MeV energy range

Giorginis, G.; Khryachkov, V.

doi:10.1016/j.nima.2006.02.035

Cited by 22 publications

(55 citation statements)

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“…For the later measurements it was understood that particle leaking can occur in such experiments, and a more complete kinematic analysis was carried out to remove its effect. Those data agree with recent measurements, such as those of Giorginis and Khryachkov [108] who understood the particle leaking problem, as is shown in Fig. 11.…”

Section: Particle Leakage Effect With Ionization Chamberssupporting

confidence: 93%

“…Many measurements of the 10 B(n,α) 7 Li and 6 Li(n,t) 4 He standard cross sections with chargedparticle detection performed using ionization chambers have problems with separation of the reaction-product detector signals, especially at neutron energies in the high-MeV energy range. The use of multi-grid Frisch ionization chambers, with digitalization of the signals and full kinematic analysis, was introduced to enable better separation of events from the different reaction products, e.g., see [108]. However, it was discovered that there exists a problem when both reaction products are emitted in the same (or nearly the same) direction in the chamber.…”

Section: Particle Leakage Effect With Ionization Chambersmentioning

confidence: 99%

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Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Capote,

Badikov,

Carlson

et al. 2019

Preprint

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Section: Particle Leakage Effect With Ionization Chamberssupporting

confidence: 93%

Section: Particle Leakage Effect With Ionization Chambersmentioning

confidence: 99%

Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Capote,

Badikov,

Carlson

et al. 2019

Preprint

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“…5, from which the number of fission counts 𝑁 𝑓 is obtained. Bichsel [2] Davis [3] Giorginis [4] Zhang [5] present work (MeV) Fig. 6.…”

mentioning

confidence: 82%

Measurement of Cross Sections for the ¹⁰ B( n ,α) ⁷ Li Reaction at 4.0 and 5.0 MeV Using an Asymmetrical Twin Gridded Ionization Chamber

Zhang¹,

Liu²,

Liu³

et al. 2011

Chinese Phys. Lett.

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Cross sections of the 10 B(𝑛, 𝛼) 7 Li reaction (including the total, the "leaking" alpha, forward alpha and backward alpha parts) at 𝐸𝑛 = 4.0 and 5.0 MeV were measured using an asymmetrical twin gridded ionization chamber and two back-to-back 10 B samples. Measurements were performed at the 4.5 MV Van de Graaff accelerator of Peking University. Monoenergetic neutrons were produced through the 2 H(𝑑, 𝑛) 3 He reaction with a deuterium gas target. Absolute neutron flux was determined by a 238 U sample set inside the gridded ionization chamber and a BF3 long counter was employed as a neutron flux monitor and for normalization. The present results are compared with previous measurements and evaluations.

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“…B 4 C/Al composites have an important application in nuclear shielding, especially in neutron shielding, − because of the high neutron absorption cross section of 10 B. − However, there are still two important problems to be solved about this material. On the one hand, the addition of hard B 4 C particles seriously hinders the plastic flow of the soft matrix, resulting in the poor fluidity of the composites and high deformation resistance, which increase the difficulty of hot working.…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of a Nanoamorphous Interface Layer in B₄C/Al Composites to Improve Hot Deformability and Corrosion Resistance

Wang

Jiang

Kang

et al. 2020

ACS Appl. Nano Mater.

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In this paper, to improve the hot deformability and corrosion resistance, a nanoamorphous B 2 O 3 layer was designed and fabricated between B 4 C particles and an Al matrix successfully. The B 4 C@B 2 O 3 /Al composites were prepared by a hot-pressed sintering method. By contrast, the B 4 C/Al composites were synthesized using the same preparation method. The results show that the existence of an amorphous layer can effectively inhibit the formation of Al 3 BC, AlB 12 , and other reaction products at the interface, compared with B 4 C/Al composites. At the same time, the existence of an amorphous B 2 O 3 layer can reduce the maximum deformation resistance of the composites under the compression conditions of 500 °C and 0.001 s −1 , to about 76% lower than that of the B 4 C/Al composites, and improve the hot deformability significantly. Furthermore, the corrosion current density of B 4 C@B 2 O 3 /Al composites is 82.5% lower than that of the B 4 C/Al composites. The good corrosion resistance makes B 4 C@B 2 O 3 /Al composites a potential neutron shielding material. KEYWORDS: amorphous B 2 O 3 layer, B 4 C/Al composites, interface structure, high-temperature compression, corrosion resistance

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The cross-section of the 10B(n,α)7Li reaction measured in the MeV energy range

Cited by 22 publications

References 1 publication

Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Measurement of Cross Sections for the ¹⁰ B( n ,α) ⁷ Li Reaction at 4.0 and 5.0 MeV Using an Asymmetrical Twin Gridded Ionization Chamber

Design and Fabrication of a Nanoamorphous Interface Layer in B₄C/Al Composites to Improve Hot Deformability and Corrosion Resistance

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The cross-section of the 10B(n,α)7Li reaction measured in the MeV energy range

Cited by 22 publications

References 1 publication

Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Measurement of Cross Sections for the 10 B( n ,α) 7 Li Reaction at 4.0 and 5.0 MeV Using an Asymmetrical Twin Gridded Ionization Chamber

Design and Fabrication of a Nanoamorphous Interface Layer in B4C/Al Composites to Improve Hot Deformability and Corrosion Resistance

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Measurement of Cross Sections for the ¹⁰ B( n ,α) ⁷ Li Reaction at 4.0 and 5.0 MeV Using an Asymmetrical Twin Gridded Ionization Chamber

Design and Fabrication of a Nanoamorphous Interface Layer in B₄C/Al Composites to Improve Hot Deformability and Corrosion Resistance