Activation cross section and isomeric cross-section ratio for the (n,2n) reaction on Ir191

Patronis, N; Papadopoulos, CT; Galanopoulos, S; Kokkoris, M; Perdikakis, G; Vlastou, R; Lagoyannis, A; Harissopulos, S

dc.contributor.author	Patronis, N	en
dc.contributor.author	Papadopoulos, CT	en
dc.contributor.author	Galanopoulos, S	en
dc.contributor.author	Kokkoris, M	en
dc.contributor.author	Perdikakis, G	en
dc.contributor.author	Vlastou, R	en
dc.contributor.author	Lagoyannis, A	en
dc.contributor.author	Harissopulos, S	en
dc.date.accessioned	2014-03-01T01:25:52Z
dc.date.available	2014-03-01T01:25:52Z
dc.date.issued	2007	en
dc.identifier.issn	0556-2813	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17782
dc.subject	Cross Section	en
dc.subject.classification	Physics, Nuclear	en
dc.subject.other	N,2N REACTIONS	en
dc.subject.other	SYSTEMATICS	en
dc.subject.other	DENSITY	en
dc.subject.other	ENERGY	en
dc.subject.other	MASSES	en
dc.title	Activation cross section and isomeric cross-section ratio for the (n,2n) reaction on Ir191	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevC.75.034607	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevC.75.034607	en
heal.identifier.secondary	034607	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The Ir191(n,2n)Ir190 cross section was measured by means of the activation technique at four neutron energies in the range 10.0-11.3 MeV. The quasimonoenergetic neutron beam was produced via the H2(d,n)He3 reaction at the 5.5 MV Tandem Van de Graaff accelerator of NCSR ""Demokritos."" The cross section for the population of the second high spin (11-) isomeric state was measured along with the sum of the reaction cross section populating both the ground (4-) and the first isomeric state (1-). Statistical model calculations taking into account pre-equilibrium emission were performed and compared with all the available experimental data. The experimentally deduced excitation function for populating both the ground and first isomeric state was well reproduced by the theoretical calculations. The statistical model calculations of populating the second metastable state revealed its strong dependence on the details of the introduced level scheme, as well as on the ratio between the effective moment of inertia and the rigid body moment of inertia of the residual nucleus. The experimental cross-section data corresponding to the second isomeric state and to the isomeric ratio were reproduced in a quite consistent way by the calculations. © 2007 The American Physical Society.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review C - Nuclear Physics	en
dc.identifier.doi	10.1103/PhysRevC.75.034607	en
dc.identifier.isi	ISI:000245332200036	en
dc.identifier.volume	75	en
dc.identifier.issue	3	en