About: Production of long-lived hafnium isomers in reactor irradiations

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Vzorky Hf byly aktivovány v reaktoru IBR-2v SÚJV Dubna.Byly stíněny Cd a B4C filtrem a bez filtru byly umístěny v různých neutronových tocích.Spektry gama se měřily během dvou let. (cs) Experiments on production of long-lived Hf isomer in reactor irradiation are described. Properties of this nuclide are promissing for its potential application as a relatively safe power source characterized by high density of a accumulated energy. Metal Hf samples were activated in the Dubna IBR-2 reactor at positions corresponding to different neutron fluxes. Samples were bare or shielded by Cd and B C layers. The gamma activity of the samples was analyzed with Ge gamma spectrometers during a two-year period following their irradiation. In the presence of dominant activation products Hf and Hf, the high-spin isomers Hf and Hf are also detected despite relatively low levels. The isomer-to-ground state reactins and cross-sections were determined from the measured yields. For Hf, the cross-section for burnup (destruction) by neutron capture after its production was also estimated, clarifying the results from earlier experiments. Experiments on production of long-lived Hf isomer in reactor irradiation are described. Properties of this nuclide are promissing for its potential application as a relatively safe power source characterized by high density of a accumulated energy. Metal Hf samples were activated in the Dubna IBR-2 reactor at positions corresponding to different neutron fluxes. Samples were bare or shielded by Cd and B C layers. The gamma activity of the samples was analyzed with Ge gamma spectrometers during a two-year period following their irradiation. In the presence of dominant activation products Hf and Hf, the high-spin isomers Hf and Hf are also detected despite relatively low levels. The isomer-to-ground state reactins and cross-sections were determined from the measured yields. For Hf, the cross-section for burnup (destruction) by neutron capture after its production was also estimated, clarifying the results from earlier experiments. (en)
Title	Production of long-lived hafnium isomers in reactor irradiations Production of long-lived hafnium isomers in reactor irradiations (en) Produkce dlouhožijících isomerů ozařováním v reaktoru (cs)
skos:prefLabel	Production of long-lived hafnium isomers in reactor irradiations Production of long-lived hafnium isomers in reactor irradiations (en) Produkce dlouhožijících isomerů ozařováním v reaktoru (cs)
skos:notation	RIV/61389005:_____/06:00097243!RIV08-AV0-61389005
http://linked.open.../vavai/riv/strany	48;56
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1P04LA213), Z(AV0Z10480505)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Adam, Jindřich
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	495186
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/06:00097243
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	production; Hf (en)
http://linked.open.../riv/klicoveSlovo	production Hf
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[BE789FFC696E]
http://linked.open...i/riv/nazevZdroje	High energy density physics
http://linked.open...in/vavai/riv/obor	BG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Cooperation of Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	-
http://linked.open...iv/tvurceVysledku	Adam, Jindřich
http://linked.open...n/vavai/riv/zamer	Jaderná fyzika a příbuzné obory v základním, aplikovaném a interdisciplinárním výzkumu
issn	1574-1818
number of pages	9 (xsd:int)

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