About: Production of the Hf-178m2 isomer using a 4.5-GeV electron accelerator

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Vzorek tantalu aktivován jerevanským urychlovačem s využitím brzdného záření 4.5 GeV. Přítomnost Hf-178m2 detektována s dobrou statistickou přesností pomocí gama aktivačních měření. (cs) High-productivity methods are required for the accumulation of long-lived isomers in amounts that are sufficient for the creation of experimental targets. A tantalum sample was activated with the Yerevan synchrotron using 4.5-GeV bremsstrahlung and the presence of Hf-178m2 was detected with good statistical accuracy by gamma-activity measurements. The integrated and mean cross-section values were deduced from the experiment. The isomer-to-ground-state ratio was then estimated and compared with that known for the p + Ta reaction studied at 660 MeV. In the present experiment, both converter and target were relatively thin for better definition of the experimental conditions. However, an assembly designed for high-productivity irradiations should be thick and then the converter can also serve as the target sample when irradiated with a high-energy electron beam. The optimization of the isomer production was solved analytically and the largest estimated yield was determined as calibrate... High-productivity methods are required for the accumulation of long-lived isomers in amounts that are sufficient for the creation of experimental targets. A tantalum sample was activated with the Yerevan synchrotron using 4.5-GeV bremsstrahlung and the presence of Hf-178m2 was detected with good statistical accuracy by gamma-activity measurements. The integrated and mean cross-section values were deduced from the experiment. The isomer-to-ground-state ratio was then estimated and compared with that known for the p + Ta reaction studied at 660 MeV. In the present experiment, both converter and target were relatively thin for better definition of the experimental conditions. However, an assembly designed for high-productivity irradiations should be thick and then the converter can also serve as the target sample when irradiated with a high-energy electron beam. The optimization of the isomer production was solved analytically and the largest estimated yield was determined as calibrate... (en)
Title	Production of the Hf-178m2 isomer using a 4.5-GeV electron accelerator Produkce izomeru Hf-178m2 pomocí 4.5 GeV elektronového urychlovače (cs) Production of the Hf-178m2 isomer using a 4.5-GeV electron accelerator (en)
skos:prefLabel	Production of the Hf-178m2 isomer using a 4.5-GeV electron accelerator Produkce izomeru Hf-178m2 pomocí 4.5 GeV elektronového urychlovače (cs) Production of the Hf-178m2 isomer using a 4.5-GeV electron accelerator (en)
skos:notation	RIV/61389005:_____/04:00105624!RIV/2005/AV0/A49005/N
http://linked.open.../vavai/riv/strany	463;472
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(KSK1048102)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2005
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	582446
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/04:00105624
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	electron beam;bremsstrahlung;4,5 GeV (en)
http://linked.open.../riv/klicoveSlovo	5 GeV bremsstrahlung electron beam 4
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[D24E0D48FD6D]
http://linked.open...i/riv/nazevZdroje	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH
http://linked.open...in/vavai/riv/obor	BG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Fundamental physical laws of microworld and macroworld, the behaviour of matter and radiation
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	530
http://linked.open...iv/tvurceVysledku	Adam, Jindřich Demekhina, N. A. Karamian, S. A. Carroll, J. J.
issn	0168-9002
number of pages	1 (xsd:int)

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