Segmented YSO scintillation detectors as a new <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e180" altimg="si52.svg"><mml:mi>β</mml:mi></mml:math>-implant detection tool for decay spectroscopy in fragmentation facilities

Yokoyama, R.; Singh, M.; Grzywacz, R.; Keeler, Andrew; King, T. T.; Agramunt, J.; Brewer, N. T.; Go, S.; Heideman, J.; Liu, J.; Nishimura, S.; Parkhurst, Philip; Phong, V. H.; Rajabali, M. M.; Rasco, B. C.; Rykaczewski, K. P.; Stracener, D. W.; Taín, J. L.; Tolosa-Delgado, A.; Vaigneur, Keith; Wolińska-Cichocka, M.

doi:10.1016/j.nima.2019.05.026

Cited by 12 publications

(5 citation statements)

References 22 publications

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“…It can be used in experiments where conventional DSSD detectors are too slow or may suffer from radiation damage due to high implantation rates. We also pursued the implementation of a thick detector for β decay studies [25,26].…”

Section: Discussionmentioning

confidence: 99%

Search for α decay of Te104 with a novel recoil-decay scintillation detector

Xiao¹,

Go²,

Grzywacz³

et al. 2019

Phys. Rev. C

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Section: Discussionmentioning

confidence: 99%

Search for α decay of Te104 with a novel recoil-decay scintillation detector

Xiao¹,

Go²,

Grzywacz³

et al. 2019

Phys. Rev. C

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“…The AIDA (Advanced Implantation Detector Array) [44] was used in the run #1 whereas WAS3ABi [45] was employed for the run #2. A YSO scintillation detector [46] was also installed as a stopper for lighter mass ions than Ni. AIDA is a stack of 6 layers of DSSDs whose wafer has a thickness of 1 mm and is segmented into 128 strips with 0.560 mm pitch in both x and y directions.…”

Section: Methodsmentioning

confidence: 99%

β -delayed neutron emissions from N>50 gallium isotopes

Yokoyama,

Grzywacz,

Rasco

et al. 2023

Phys. Rev. C

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β-delayed γ-neutron spectroscopy has been performed on the decay of A = 84 to 87 gallium isotopes at the RI-beam Factory at the RIKEN Nishina Center using a high-efficiency array of 3 He neutron counters (BRIKEN). β-2n-γ events were measured in the decays of all of the four isotopes for the first time, which is direct evidence for populating the excited states of two-neutron daughter nuclei. Detailed decay schemes with the γ branching ratios were obtained for these isotopes and the neutron emission probabilities (Pxn) were updated from the previous study. Hauser-Feshbach statistical model calculations were performed to understand the experimental branching ratios. We found that the P1n and P2n values are sensitive to the nuclear level densities of 1n daughter nuclei and showed that the statistical model reproduced the P2n/P1n ratio better when experimental levels + shell-model level densities fit by the Gilbert-Cameron formula were used as the level-density input. We also showed the neutron and γ branching ratios are sensitive to the ground-state spin of the parent nucleus. Our statistical model analysis suggested J ≤ 3 for the unknown ground-state spin of the odd-odd nucleus, 86 Ga, from the Iγ(4 + → 2 + )/Iγ(2 + → 0 + ) ratio of 84 Ga and the P2n/P1n ratio. These results show the necessity of detailed understanding of the decay scheme, including data from neutron spectroscopy, in addition to γ measurements of the multi-neutron emitters.

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“…An implantation detector made of yttrium orthosilicate (Y 2 SiO 5 , YSO) [41] was positioned at the center of the FDSi discrete focal point. On the north side of the beam line, a γ-ray detector array, DEcay Germanium Array initiator (DEGAi), consisting of 11 HPGe clover detectors and 15 fast-timing LaBr 3 detectors, was present.…”

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confidence: 99%