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Lifetime measurements by delayed coincidences with and without a complete knowledge of the prompt curve. Application to levels in ¹⁸⁴Ir and ^185,187Pt

Oms, J.; Bourgeois, C.; Abreu, M.C.; Braganca Gil, F.
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire; ISOCELE Collaboration1995

AbstractAbstract

[en] A method is described which enables one to deduce a range of possible values for the lifetime of a nuclear level when the delayed coincidence curve is experimentally given and the prompt curve is known only through some of its features. The method still applies when a prompt contribution is present. Experimental data in ¹⁸⁴Ir are analyzed. The method is also used to discuss results obtained with an experimental prompt curve in ¹⁸⁵Pt. (K.A.)

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3220)

Source

1995; [22 p.]; 23 refs.; Submitted to Nuclear Instruments and Methods (NL).

Record Type

Report

Report Number

IPNO-DRE--95-16

Country of publication

France

Descriptors (DEI)

COINCIDENCE METHODS, ENERGY LEVELS, IRIDIUM 184, LIFETIME, PLATINUM 185, PLATINUM 187

Descriptors (DEC)

ALPHA DECAY RADIOISOTOPES, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, COUNTING TECHNIQUES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, HEAVY NUCLEI, HOURS LIVING RADIOISOTOPES, IRIDIUM ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, ODD-ODD NUCLEI, PLATINUM ISOTOPES, RADIOISOTOPES

LanguageLanguage

English

Reference NumberReference Number

29006379

INIS VolumeINIS Volume

INIS IssueINIS Issue

PDF

β⁺/EC decay of ¹⁸¹Au: γ-ray identification

Braganca-Gil, F.; Porquet, M.G.; Bourgeois, C.; Kilcher, P; Parot, G.; Sauvage-Letessier, J.; Roussiere, B.
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire; ISOCELE Collaboration1983

AbstractAbstract

[en] The β⁺/EC decay of ¹⁸¹Au has been studied with mass separated sources from the ISOCELE facility. Main γ-rays which belong to the ¹⁸¹Au → ¹⁸¹Pt decay have been identified from X-γ coincidence measurements. A rotational band built on the 1/2 -[521] Nilsson state has been developed up to the 7/2^- state in ¹⁸¹Pt

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3417)

Source

1983; 11 p

Record Type

Report

Literature Type

Numerical Data

Report Number

IPNO-DRE--83-28

Country of publication

France

Descriptors (DEI)

BETA-PLUS DECAY, COINCIDENCE METHODS, ELECTRON CAPTURE DECAY, ENERGY-LEVEL TRANSITIONS, EXPERIMENTAL DATA, GAMMA RADIATION, GOLD 181, MEV RANGE 100-1000, PLATINUM 181, PLATINUM 195 TARGET, PROTON REACTIONS, ROTATIONAL STATES, SPECTRA

Reference NumberReference Number

17086155

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

1/2 - [521] quasi-rotational band in neutron deficient platinum isotopes

Roussiere, B.; Kilcher, P.; Sauvage, J.; Braganca-Gil, F.; Macias-Marques, M.I.; Porquet, M.G.
Proceedings of the International symposium on in-beam nuclear spectroscopy held at Debrecen, Hungary, 14-18 May 19841984

AbstractAbstract

[en] The βsup(+)/EC decay of sup(181,183,185)Au was studied with mass-separated sources from the Isocele facility. These studies are the first step of a systematic approach to the neutron-deficient platinum nuclei. The stability of the 1/2 - [521] band through the sup(177-185)Pt isotopes is pointed out. (author)

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3417)

Source

Dombradi, Zs.; Fenyes, T. (eds.); Magyar Tudomanyos Akademia, Debrecen. Atommag Kutato Intezete; p. 387-388; ISBN 963 05 3994 2;

; 1984; p. 387-388; Akademiai Kiado; Budapest (Hungary); International Symposium on in-beam nuclear spectroscopy; Debrecen (Hungary); 14-18 May 1984; 5 refs.

Record Type

Book

Literature Type

Conference

Country of publication

Hungary

Descriptors (DEI)

BAND THEORY, BETA-PLUS DECAY, NEUTRON-DEFICIENT ISOTOPES, PLATINUM ISOTOPES, ROTATIONAL STATES, STABILITY

Descriptors (DEC)

BETA DECAY, DECAY, ENERGY LEVELS, EXCITED STATES, ISOTOPES, NUCLEAR DECAY, RADIOISOTOPES

Reference NumberReference Number

16036937

INIS VolumeINIS Volume

INIS IssueINIS Issue

PDF

Decays of ¹⁸¹Hg (T_1/2 = 3.6s) and ¹⁸¹Au (T_1/2 = 11.4s) low-spin states of ¹⁸¹Pt and ^177,181Ir

Sauvage, J.; Bourgeois, C.; Kilcher, P.; Le Blanc, F.; Roussiere, B.; Macias-Marques, M.I.; Braganca Gil, F.; Porquet, M.G.; Dautet, H.
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire; ISOCELE Collaboration1990

AbstractAbstract

[en] The decay of ¹⁸¹Au (T_1/2 = 11.4s) has been investigated using mass-separated radioactive sources produced by the ISOCELE facility. Level schemes of ¹⁷⁷Ir, ¹⁸¹Ir and ¹⁸¹Pt have been obtained. Most of the levels located at low excitation energy in ¹⁸¹Ir and ¹⁸¹Pt are identified as states corresponding to prolate-shaped nuclei. However the highly-converted transitions observed in ¹⁸¹Pt could indicate a new region of shape transition in the very neutron-deficient platinum isotopes (data, 13 figs., 6 tabs)

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3210)

Secondary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3220), NUCLEAR PHYSICS AND RADIATION PHYSICS (G3570)

Source

1990; 48 p

Record Type

Report

Report Number

IPNO-DRE--90-11

Country of publication

France

Descriptors (DEI)

ALPHA DECAY, BETA DECAY, DE-EXCITATION, ENERGY-LEVEL TRANSITIONS, EXCITED STATES, GAMMA DECAY, GOLD 181, IRIDIUM 177, IRIDIUM 181, MERCURY 181, MULTIPOLARITY, NUCLEAR DEFORMATION, PLATINUM 181

Reference NumberReference Number

23009789

INIS VolumeINIS Volume

INIS IssueINIS Issue

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