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The Use of the Moessbauer Effect in Investigating the Chemical Effects of Nuclear Transmutations in Oxygenous Compounds of Manganese and Tin; Utilisation de l'Effet Moessbauer pour l'Etude des Effets Chimiques des Transformations Nucleaires dans les Composes de Manganese et d'Etain; 0418 0421 0421 041b 0415 0414 ; Empleo del Efecto Moessbauer para Investigar las Transformaciones Nucleares de Compuestos Oxigenados de Estano y de Manganeso

Abstract

The customary methods of studying the chemical state of recoil atoms, i. e. those connected with phase transitions (chemical analysis, chromatography, electrophoresis) and also the annealing technique, permit only indirect judgments as to the stabilization mechanism of hot atoms. In analysis with the method of resonance absorption of non-recoil gamma-quanta, no changes are introduced into the sample that could influence the forms of stabilization, even where stability is not very great. In the present study we investigated the forms of stabilization of Mn56 recoil atoms in irradiated solutions and solid samples of permanganate, and of Sn{sup 119m} recoil atoms in stannic oxide and stannous oxide. The permanganate samples were irradiated in a paraffin block with a polonium-beryllium source at a neutron flux of 10{sup 7} - 10{sup 8} n/cm{sup 2}. s. The hot Mn{sup 56} atoms are formed in the +7, +4 and lower valency states. From samples (SnO and SnO{sub 2}) irradiated in a reactor for 1800 h at a flux of 2.2 x 10{sup 13} n/cm{sup 2}. s, sources were prepared directly for a study of the resonance absorption of gamma-quanta in an apparatus operating at constant speed. Suitable compounds of tin were used as absorbers. The Sn{sup  More>>
Authors:
Nesmejanov, An. N.; Babeshkin, A. M.; Kosev, N. P.; Bekker, A. A.; Lebedev, V. A. [1] 
  1. Moskovskij Gosudarstvennyj Universitet Im. M.V. Lomonosova, Moskva, SSSR (Russian Federation)
Publication Date:
Apr 15, 1965
Product Type:
Conference
Report Number:
IAEA-SM-57/55
Resource Relation:
Conference: Symposium on Chemical Effects Associated with Nuclear Reactions and Radioactive Transformations, Heidelberg (Germany), 7-11 Dec 1964; Other Information: 67 refs., 9 figs., 8 tabs.; Related Information: In: Chemical Effects of Nuclear Transformations. Vol. II. Proceedings of the Symposium on Chemical Effects Associated with Nuclear Reactions and Radioactive Transformations| 572 p.
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; BERYLLIUM; CHEMICAL ANALYSIS; CHEMICAL STATE; CHROMATOGRAPHY; ELECTROPHORESIS; IRRADIATION; MANGANESE 56; NEUTRON FLUX; PHASE TRANSFORMATIONS; POLONIUM; TIN 119; TIN OXIDES
OSTI ID:
22188125
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); Joint Commission on Applied Radioactivity of the International Council of Scientific Unions, Paris (France)
Country of Origin:
IAEA
Language:
Russian
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M3344012626
Submitting Site:
INIS
Size:
page(s) 419-438
Announcement Date:
Feb 06, 2014

Citation Formats

Nesmejanov, An. N., Babeshkin, A. M., Kosev, N. P., Bekker, A. A., and Lebedev, V. A. The Use of the Moessbauer Effect in Investigating the Chemical Effects of Nuclear Transmutations in Oxygenous Compounds of Manganese and Tin; Utilisation de l'Effet Moessbauer pour l'Etude des Effets Chimiques des Transformations Nucleaires dans les Composes de Manganese et d'Etain; 0418 0421 0421 041b 0415 0414 ; Empleo del Efecto Moessbauer para Investigar las Transformaciones Nucleares de Compuestos Oxigenados de Estano y de Manganeso. IAEA: N. p., 1965. Web.
Nesmejanov, An. N., Babeshkin, A. M., Kosev, N. P., Bekker, A. A., & Lebedev, V. A. The Use of the Moessbauer Effect in Investigating the Chemical Effects of Nuclear Transmutations in Oxygenous Compounds of Manganese and Tin; Utilisation de l'Effet Moessbauer pour l'Etude des Effets Chimiques des Transformations Nucleaires dans les Composes de Manganese et d'Etain; 0418 0421 0421 041b 0415 0414 ; Empleo del Efecto Moessbauer para Investigar las Transformaciones Nucleares de Compuestos Oxigenados de Estano y de Manganeso. IAEA.
Nesmejanov, An. N., Babeshkin, A. M., Kosev, N. P., Bekker, A. A., and Lebedev, V. A. 1965. "The Use of the Moessbauer Effect in Investigating the Chemical Effects of Nuclear Transmutations in Oxygenous Compounds of Manganese and Tin; Utilisation de l'Effet Moessbauer pour l'Etude des Effets Chimiques des Transformations Nucleaires dans les Composes de Manganese et d'Etain; 0418 0421 0421 041b 0415 0414 ; Empleo del Efecto Moessbauer para Investigar las Transformaciones Nucleares de Compuestos Oxigenados de Estano y de Manganeso." IAEA.
@misc{etde_22188125,
title = {The Use of the Moessbauer Effect in Investigating the Chemical Effects of Nuclear Transmutations in Oxygenous Compounds of Manganese and Tin; Utilisation de l'Effet Moessbauer pour l'Etude des Effets Chimiques des Transformations Nucleaires dans les Composes de Manganese et d'Etain; 0418 0421 0421 041b 0415 0414 ; Empleo del Efecto Moessbauer para Investigar las Transformaciones Nucleares de Compuestos Oxigenados de Estano y de Manganeso}
author = {Nesmejanov, An. N., Babeshkin, A. M., Kosev, N. P., Bekker, A. A., and Lebedev, V. A.}
abstractNote = {The customary methods of studying the chemical state of recoil atoms, i. e. those connected with phase transitions (chemical analysis, chromatography, electrophoresis) and also the annealing technique, permit only indirect judgments as to the stabilization mechanism of hot atoms. In analysis with the method of resonance absorption of non-recoil gamma-quanta, no changes are introduced into the sample that could influence the forms of stabilization, even where stability is not very great. In the present study we investigated the forms of stabilization of Mn56 recoil atoms in irradiated solutions and solid samples of permanganate, and of Sn{sup 119m} recoil atoms in stannic oxide and stannous oxide. The permanganate samples were irradiated in a paraffin block with a polonium-beryllium source at a neutron flux of 10{sup 7} - 10{sup 8} n/cm{sup 2}. s. The hot Mn{sup 56} atoms are formed in the +7, +4 and lower valency states. From samples (SnO and SnO{sub 2}) irradiated in a reactor for 1800 h at a flux of 2.2 x 10{sup 13} n/cm{sup 2}. s, sources were prepared directly for a study of the resonance absorption of gamma-quanta in an apparatus operating at constant speed. Suitable compounds of tin were used as absorbers. The Sn{sup 119m} recoil atoms were detected only in the +4-valency state. The data obtained are taken as the basis for a discussion of the stabilization mechanism of recoil atoms. (author) [French] Les methodes habituellement appliquees pour etudier l'etat chimique des atomes de recul (analyse chimique, chromatographie, electro- phorese) sont liees, comme le recuit, aux transitions de phases et ne permettent de determiner le mecanisme de stabilisation des atomes chauds que d'une facon indirecte. Lorsque l'analyse est faite au moyen d'une methode fondee sur l'absorption par resonance des phonons sans recul, l'echantillon ne subit aucune modification pouvant exercer une influence sur les formes de stabilisation, meme si ces formes sont peu durables. Les auteurs ont etudie les formes de stabilisation des atomes de recul de 56 Mn des solutions et des echantillons solides irradies de permanganate, ainsi que celles des atomes de recul de {sup 119m}Sn dans l'oxyde et le bioxyde d'etain. Les echantillons de permanganate ont ete irradies dans un bloc de paraffine a l'aide d'une source au polonium-beryllium donnant un flux de neutrons de 10{sup 7} a 10{sup 8} n/cm{sup 2} * s. Les atomes chauds de {sup 56}Mn qui se forment peuvent avoir les valences +7, +4 et inferieures. Les echantillons (SnO et SnO{sub 2}), exposes dans un reacteur a un flux de 2,2 * 10{sup 13} n/cm{sup 2} * s pendant 1800 h, ont ete directement utilises pour la preparation de sources destinees a l'etude de l'absorption par resonance des phonons dans une installation fonctionnant a vitesse constante. Des composes d'etain correspondants ont ete employes comme absorbeurs. On n'a constate la presence d'atomes {sup 119m}Sn de recul qu'a l'etat tetravalent. Sur la base des donnees obtenues, les auteurs examinent le mecanisme de stabilisation des atomes de recul. (author) [Spanish] Los metodos utilizados corrientemente para estudiar el estado quimico de los atomos de retroceso, esto es, aquellos asociados a los cambios de fase (analisis quimico, cromatografia, electroforesis), lo mismo que el recocido, solo permiten conocer indirectamente el mecanismo de estabilizacion de los atomos calientes. Cuando el analisis se efectua por el metodo de absorcion por resonancia de los cuantos gamma sin retroceso, no se introduce en la muestra ninguna modificacion capaz de influir en las formas de estabilizacion, incluso si la estabilidad no es muy grande. Los autores investigaron las formas de estabilizacion de los atomos de retroceso del {sup 56}Mn en soluciones y muestras solidas de permanganato irradiadas, y las de los atomos de retroceso del {sup 119m}Sn en oxido estannico y estannoso. Las muestras del permanganato se irradiaron en un bloque de parafina con un flujo de 10{sup 7} a 10{sup 8} neutrones/cm{sup 2} * s emitido por una fuente de polonio-berilio. Los atomos calientes de {sup 56}Mn que se forman pueden ser hepta y tetravalentes o presentar estados de oxidacion inferiores. A partir de las muestras (SnO y SnO{sub 2}), irradiadas en un reactor con un flujo de 2,2 * 10{sup 13} neutrones/cm{sup 2}- s durante 1800 h, prepararon directamente fuentes para investigar la absorcion por resonancia de los cuantos gamma en un aparato que funciona a velocidad constante. Como absorbentes utilizaron los correspondientes compuestos de estano. Los atomos de retroceso del {sup 119m}Sn solo se han observado en el estado tetravalente. Basandose en los datos obtenidos, los autores examinan el mecanismo de estabilizacion de los atomos de retroceso. (author) [Russian] Obychnye metody izuchenija himicheskogo sostojanija atomov otdachi (himicheskij analiz, hromatografija, jelektroforez), svjazannye s fazovymi perehodami, takzhe kak i otzhig, dajut vozmozhnost' lish' kosvenno sudit' o mehanizme stabilizacii gorjachih atomov. Pri analize metodom rezonansnogo pogloshhenija gamma-kvantov bez otdachi v obrazec ne vnosjatsja nikakie izmenenija, mogushhie povlijat' na formy stabilizacii dazhe, esli oni malo ustojchivy. V nastojashhbj rabote issledovalis' formy stabilizacii atomov otdachi marganca-56 v obluchennyh rastvorah i tverdyh obrazcah permanganata, a takzhe olova-119{sup m} v dvuokisi i okisi olova. Obrazcy permanganata obluchalis' v parafinovom bloke na polonij-berillievom istochnike s potokom nejtronov 10{sup 7} - 10{sup 8} n/sm{sup 2}/sek. Gorjachie atomy marganca-56 obrazujutsja v +7,+ 4 i nizshih valentnyh sostojanijah. Iz obrazcov ( SnO i SnO{sub 2}), obluchennyh na reaktore potokom 2,2 * 10{sup 13} n/cm{sup 2}/sek v techenie 1800 chasov, neposredstvenno gotovilis' istochniki dlja issledovanija rezonansnogo pogloshhenija gamma-kvantov na ustanovke, rabotajushhej v rezhime postojannoj skorosti. V kachestve poglotitelej ispol'zovalis' sootvetstvujushhie soedinenija olova. Atomy otdachi olova-119{sup m} obnaruzheny tol'ko v chetyrehvalentnom sostojanii. Na osnovanii poluchennyh dannyh obsuzhdaetsja mehanizm stabilizacii atomov otdachi. (author)}
place = {IAEA}
year = {1965}
month = {Apr}
}