Published 1975
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On-line Moessbauer effect and recoil effects
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Description
On-line Moessbauer experiments were performed using the reactions 56Fe(n,γ)57Fe and 177Hf(n,γ)178Hf respectively populating the resonance levels 14.4keV 3/2+ in 57Fe and 93keV 2+ in 178Hf. Experiments were performed with iron and hafnium pure metals, Fe-Al and Ni-Fe substitution alloys and Fe-Ge covalence alloys and a complex molecule (iron acetylacetonate). The on-line experiments are as precise as conventional Moessbauer experiments but the recoil effects that follow the neutron capture cannot be cancelled
Abstract (French)
On a realise des experiences d'effet Moessbauer en ligne par reaction 56Fe(n,γ)57Fe et 177Hf(n,γ)178Hf peuplant respectivement les niveaux resonnants 3/2+ a 14,4keV de 57Fe et 2+ a 93keV de 178Hf. Les experiences ont ete faites sur les metaux purs fer et hafnium, sur les alliages de substitution Fe-Al et Ni-Fe, sur les alliages a caracteres covalents Fe-Ge et sur une molecule complexe (l'acetylacetonate de fer). Les experiences en ligne sont aussi precises que les experiences d'effet Moessbauer classiques mais on ne peut se soustraire aux effets de recul qui suivent la capture neutroniqueFiles
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Additional details
Additional titles
- Original title (French)
- Effet Moessbauer en ligne et effet de recul
Publishing Information
- Imprint Title
- Grenoble Fundamental Research Department. Supplement to semi-annual bulletin no.7, January-June 1975. ILL experiments
- Imprint Pagination
- p. 51-54.
- Report number
- CEA-N--1817(suppl.)
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 7231646
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Progress Report
- Descriptors DEI
- ALUMINIUM ALLOYS; GERMANIUM ALLOYS; HAFNIUM; HAFNIUM 178; IRON; IRON ALLOYS; IRON COMPLEXES; IRON 57; MOESSBAUER EFFECT; NICKEL ALLOYS; RECOILS; RESONANCE
- Descriptors DEC
- ALLOYS; COMPLEXES; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HAFNIUM ISOTOPES; INTERMEDIATE MASS NUCLEI; IRON ISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; METALS; NUCLEI; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; STABLE ISOTOPES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENTS
Optional Information
- Notes
- Imprint:Departement de Recherche Fondamentale de Grenoble. Supplement au bulletin semestriel no.7, 1. semestre 1975. Experiences iLL.