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Gamma-ray fast-timing coincidence measurements from the (18)O+(18)O fusion-evaporation reaction using a mixed LaBr(3)-HPGe array

Alharbi, T, Mason, PJ, Regan, PH, Podolyák, Z, Mărginean, N, Nakhostin, M, Bowry, M, Bucurescu, D, Căta-Danil, G, Căta-Danil, I, Deleanu, D, Filipescu, D, Glodariu, T, Ghiţă, D, Mărginean, R, Mihai, C, Negret, A, Pascu, S, Sava, T, Stroe, L, Suliman, G, Zamfir, NV, Bruce, AM, Rodriguez Triguero, C, Bender, PC, Garg, U, Erduran, MN, Kusoglu, A, Bostan, M, Detistov, P, Alkhomashi, N, Sinha, AK, Chakrabarti, R and Ghugre, SS (2012) Gamma-ray fast-timing coincidence measurements from the (18)O+(18)O fusion-evaporation reaction using a mixed LaBr(3)-HPGe array Appl Radiat Isot, 70 (7). 1337 - 1339. ISSN 0969-8043

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Abstract

We report on a gamma-ray coincidence analysis using a mixed array of hyperpure germanium and cerium-doped lanthanum tri-bromide (LaBr(3):Ce) scintillation detectors to study nuclear electromagnetic transition rates in the pico-to-nanosecond time regime in (33,34)P and (33)S following fusion-evaporation reactions between an (18)O beam and an isotopically enriched (18)O implanted tantalum target. Energies from decay gamma-rays associated with the reaction residues were measured in event-by-event coincidence mode, with the measured time difference information between the pairs of gamma-rays in each event also recorded using the ultra-fast coincidence timing technique. The experiment used the good full-energy peak resolution of the LaBr(3):Ce detectors coupled with their excellent timing responses in order to determine the excited state lifetime associated with the lowest lying, cross-shell, I(π)=4(-) "intruder" state previously reported in the N=19 isotone (34)P. The extracted lifetime is consistent with a mainly single-particle M2 multipolarity associated with a f(7/2)→d(5/2) single particle transition.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmail
Alharbi, TUNSPECIFIED
Mason, PJUNSPECIFIED
Regan, PHUNSPECIFIED
Podolyák, ZUNSPECIFIED
Mărginean, NUNSPECIFIED
Nakhostin, MUNSPECIFIED
Bowry, MUNSPECIFIED
Bucurescu, DUNSPECIFIED
Căta-Danil, GUNSPECIFIED
Căta-Danil, IUNSPECIFIED
Deleanu, DUNSPECIFIED
Filipescu, DUNSPECIFIED
Glodariu, TUNSPECIFIED
Ghiţă, DUNSPECIFIED
Mărginean, RUNSPECIFIED
Mihai, CUNSPECIFIED
Negret, AUNSPECIFIED
Pascu, SUNSPECIFIED
Sava, TUNSPECIFIED
Stroe, LUNSPECIFIED
Suliman, GUNSPECIFIED
Zamfir, NVUNSPECIFIED
Bruce, AMUNSPECIFIED
Rodriguez Triguero, CUNSPECIFIED
Bender, PCUNSPECIFIED
Garg, UUNSPECIFIED
Erduran, MNUNSPECIFIED
Kusoglu, AUNSPECIFIED
Bostan, MUNSPECIFIED
Detistov, PUNSPECIFIED
Alkhomashi, NUNSPECIFIED
Sinha, AKUNSPECIFIED
Chakrabarti, RUNSPECIFIED
Ghugre, SSUNSPECIFIED
Date : 2012
Identification Number : 10.1016/j.apradiso.2011.11.040
Additional Information : NOTICE: This is the author’s version of a work that was accepted for publication in Apple Radiation Isotope. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Apple Radiation Isotope, 70(7), July 2012, DOI 10.1016/j.apradiso.2011.11.040.
Depositing User : Symplectic Elements
Date Deposited : 03 Sep 2012 11:50
Last Modified : 23 Sep 2013 19:01
URI: http://epubs.surrey.ac.uk/id/eprint/121084

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