A new high-resolution gamma-ray monochromator

R. Moreh; I. Jacob; R. Mourad

doi:10.1016/0029-554X(75)90488-7

A new high-resolution gamma-ray monochromator

R. Moreh, I. Jacob, R. Mourad

Department of Physics

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7 Scopus citations

Abstract

A high-resolution gamma monochromator having a resolution of ≁10^-6 is described. The variable-energy γ source is obtained by nuclear resonance scattering, of neutron-capture γ rays, through various scattering angles. Several possible examples of combinations of γ sources and resonance scatterers are discussed. In particular, a lead target was employed to scatter the 7.28 MeV γ line of neutron-capture γ rays of iron. Variation of the angle of the resonantly scattered 7.28 MeV photons between 60°-150° permits an energy scan of 400 eV in any absorber. Thus, nuclear energy levels in some absorbers were photoexcited and the corresponding ground-state widths were extracted from the measured absorption spectrum. The results for the case of a Ce absorber are discussed in detail.

Original language	English
Pages (from-to)	193-203
Number of pages	11
Journal	Nuclear Instruments and Methods
Volume	127
Issue number	2
DOIs	https://doi.org/10.1016/0029-554X(75)90488-7
State	Published - 1 Aug 1975

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General Medicine

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10.1016/0029-554X(75)90488-7

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title = "A new high-resolution gamma-ray monochromator",

abstract = "A high-resolution gamma monochromator having a resolution of ≁10-6 is described. The variable-energy γ source is obtained by nuclear resonance scattering, of neutron-capture γ rays, through various scattering angles. Several possible examples of combinations of γ sources and resonance scatterers are discussed. In particular, a lead target was employed to scatter the 7.28 MeV γ line of neutron-capture γ rays of iron. Variation of the angle of the resonantly scattered 7.28 MeV photons between 60°-150° permits an energy scan of 400 eV in any absorber. Thus, nuclear energy levels in some absorbers were photoexcited and the corresponding ground-state widths were extracted from the measured absorption spectrum. The results for the case of a Ce absorber are discussed in detail.",

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T1 - A new high-resolution gamma-ray monochromator

AU - Moreh, R.

AU - Jacob, I.

AU - Mourad, R.

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Y1 - 1975/8/1

N2 - A high-resolution gamma monochromator having a resolution of ≁10-6 is described. The variable-energy γ source is obtained by nuclear resonance scattering, of neutron-capture γ rays, through various scattering angles. Several possible examples of combinations of γ sources and resonance scatterers are discussed. In particular, a lead target was employed to scatter the 7.28 MeV γ line of neutron-capture γ rays of iron. Variation of the angle of the resonantly scattered 7.28 MeV photons between 60°-150° permits an energy scan of 400 eV in any absorber. Thus, nuclear energy levels in some absorbers were photoexcited and the corresponding ground-state widths were extracted from the measured absorption spectrum. The results for the case of a Ce absorber are discussed in detail.

AB - A high-resolution gamma monochromator having a resolution of ≁10-6 is described. The variable-energy γ source is obtained by nuclear resonance scattering, of neutron-capture γ rays, through various scattering angles. Several possible examples of combinations of γ sources and resonance scatterers are discussed. In particular, a lead target was employed to scatter the 7.28 MeV γ line of neutron-capture γ rays of iron. Variation of the angle of the resonantly scattered 7.28 MeV photons between 60°-150° permits an energy scan of 400 eV in any absorber. Thus, nuclear energy levels in some absorbers were photoexcited and the corresponding ground-state widths were extracted from the measured absorption spectrum. The results for the case of a Ce absorber are discussed in detail.

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DO - 10.1016/0029-554X(75)90488-7

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VL - 127

SP - 193

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JO - Nuclear Instruments and Methods

JF - Nuclear Instruments and Methods

IS - 2

ER -

A new high-resolution gamma-ray monochromator

Abstract

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