Installation and commissioning of EURICA – Euroball-RIKEN Cluster Array

Söderström, P.-A.; Nishimura, S.; Doornenbal, P.; Lorusso, G.; Sumikama, T.; Watanabe, H.; Xu, Z. Y.; Baba, H.; Browne, F.; Go, S.; Gey, G.; Isobe, T.; Jung, H. S.; Kim, G. D.; Kim, Y. K.; Kojouharov, I.; Kurz, N.; Kwon, Y. K.; Li, Z.; Moschner, K.; Nakao, T.; Nıshıbata, H.; Nishimura, Makoto; Odahara, A.; Sakuraï, H.; Schaffner, H.; Shimoda, T.; Taprogge, J.; Vajta, Zs.; Werner, V.; Wu, J.; Yagi, A.; Yoshinaga, K.

doi:10.1016/j.nimb.2013.03.018

Cited by 135 publications

(96 citation statements)

References 22 publications

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“…Earlier experiments performed within the RISING stopped beam campaign showed excellent agreement with shell model predictions made for the 100 Sn region. The aim of the experiment RIBF83 performed within the EURICA [2] a e-mail: kmoschner@ikp.uni-koeln.de project at the Radioactive Isotope Beam Facility (RIBF) at RIKEN, Japan was to further extend the knowledge on decays of N ≈ Z nuclei below 100 Sn to provide more detailed tests of large scale shell model calculations.…”

Section: Introductionmentioning

confidence: 99%

Study of ground and excited state decays inN≈ZAg nuclei

Moschner

Blazhev

Warr

et al. 2015

EPJ Web of Conferences

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Abstract. A decay spectroscopy experiment was performed within the EURICA campaign at RIKEN in 2012. It aimed at the isomer and particle spectroscopy of excited states and ground states in the mass region below the doubly magic 100 Sn. The N = Z nuclei 98 In, 96 Cd and 94 Ag were of particular interest for the present study. Preliminary results on the neutron deficient nuclei 93 Ag and 94 Ag are presented. In 94 Ag a more precise value for the half-life of the ground state's superallowed Fermi transition was deduced. In addition the energy spectra of the mentioned decay could be reproduced through precise Geant4 simulations of the used active stopper SIMBA. This will enable us to extract Q β values from the measured data. The decay of 93 Ag is discussed based on the observed implantation-decay correlation events.

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Section: Introductionmentioning

confidence: 99%

Study of ground and excited state decays inN≈ZAg nuclei

Moschner

Blazhev

Warr

et al. 2015

EPJ Web of Conferences

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“…This position sensitive detector allowed direct correlations with individual implanted ions and also with subsequent β-decay events in the same location of the stopper arising from the same ion [1]. Discrete-energy gamma-ray decays emitted from the implaned ions (following either isomeric decay or β − decay) were measured using the Euroball RIKEN Cluster Array (EURICA) consisting of 84 coaxial high-purity germanium (HPGe) detectors, arranged in an array of 12 × 7 element CLUSTER detector modules, complemented by 18 additional LaBr 3 (Ce) detectors for fasttiming measurements [1,[7][8][9][10]. Related studies from the same experiment have been reported for isomeric and decay spectroscopy of 170 Dy and 172 Dy [1,10].…”

Section: Experimental Details Analysis and Resultsmentioning

confidence: 99%

Isomer-delayed gamma-ray spectroscopy of neutron-rich ¹⁶⁶Tb

et al. 2017

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Abstract. This short paper presents the identification of a metastable, isomeric-state decay in the neutron-rich odd-odd, prolate-deformed nucleus 166 Tb. The nucleus of interest was formed using the in-flight fission of a 345 MeV per nucleon 238 U primary beam at the RIBF facility, RIKEN, Japan. Gamma-ray transitions decaying from the observed isomeric states in 166 Tb were identified using the EURICA gamma-ray spectrometer, positioned at the final focus of the BigRIPS fragments separator. The current work identifies a single discrete gamma-ray transition of energy 119 keV which de-excites an isomeric state in 166 Tb with a measured half-life of 3.5(4) µs. The multipolarity assignment for this transition is an electric dipole and is made on the basis internal conversion and decay lifetime arguments. Possible two quasi-particle Nilsson configurations for the initial and final states which are linked by this transition in 166

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“…The selected fragments were transported through the ZeroDegree spectrometer (ZDS) and finally implanted into the WAS3ABi (wide-range active silicon strip stopper array for β and ion detection) Si array positioned at the focal plane of the ZDS. The WAS3ABi detector [13] consisted of five double-sided silicon-strip detectors (DSSSDs) each with an area of 40 × 60 mm 2 , and a thickness of 1 mm. The DSSSDs had segmentations of 40 × 60 strips each.…”

Section: Methodsmentioning

confidence: 99%