Calculations of neutron reflectivity in the eV energy range from mirrors made of heavy nuclei with neutron-nucleus resonances
Calculations of neutron reflectivity in the eV energy range from mirrors made of heavy nuclei with neutron-nucleus resonances
复制标题
计算由具有中子-核共振的重核制成的镜子在 eV 能量范围内的中子反射率
DOI:
10.1103/physreva.100.023612
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发表时间:
2019
影响因子:
2.9
通讯作者:
Haddock, C.
中科院分区:
文献类型:
--
作者:
Snow, W. M.;Dickerson, K. A.;Devaney, J. S.;Haddock, C.
We evaluate the reflectivity of neutron mirrors composed of certain heavy nuclei which possess strong neutron-nucleus resonances in the eV energy range. We consider possible corrections to the usual formulas of neutron optics for this case and find that dispersion and multiple scattering effects are negligible but one must take Doppler broadening into account. Effects from surface roughness and phonon scattering are small compared to the Doppler corrections and are either the same as or smaller than those for mirror reflection with meV neutrons. We show that the reflectivity of such a mirror for some nuclei can in principle be high enough near energies corresponding to compound neutron-nucleus resonances to be of interest for certain scientific applications in nondestructive evaluation of subsurface material composition.
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DOI:
10.1103/physrevb.32.6347
发表时间:
1985
期刊:
Physical review. B, Condensed matter
影响因子:
--
作者:
Warner;Gubernatis
通讯作者:
Gubernatis
影响因子:
--
作者:
H. Ekstein
通讯作者:
H. Ekstein
影响因子:
1.6
作者:
R. Lenk
通讯作者:
R. Lenk
DOI:
10.1103/physreva.39.931
发表时间:
1989
期刊:
Physical review. A, General physics
影响因子:
--
作者:
Arif;Kaiser;Clothier;Werner;Hamilton;Cimmino;Klein
通讯作者:
Klein
DOI:
10.1007/bf01246267
发表时间:
1967
期刊:
Soviet Atomic Energy
影响因子:
--
作者:
V. Turchin
通讯作者:
V. Turchin