Design status of KOBRA for rare isotope production and direct measurements of radiative capture cross sections

Tshoo, K.; Chae, Hee Bon; Park, J.; Moon, J. Y.; Kwon, Y. K.; Souliotis, G. A.; Hashimoto, Toshikazu; Akers, C.; Berg, G.P.A.; Choi, S.; Jeong, Sohee; Kato, S.; Kim, Y.K.; Kubono, S.; Lee, K.B.; Moon, C. B.

doi:10.1016/j.nimb.2015.12.025

Cited by 23 publications

(15 citation statements)

References 27 publications

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“…This enhanced production has been experimentally observed in our previous work with 86 Kr(25MeV/nucleon)+ 208 Pb and successfully described with the DIT/SMM model framework mainly as asymmetric binary decay of extremely neutron-rich quasiprojectiles [59,60]. [65], that we consider as a representative large-acceptance separator especially designed for rare-isotope production at this energy regime in the upcoming RIB facility RISP [12]. In the KOBRA setup, we assume that the beam hits the primary target at an angle of 5 o (that may be achieved with the aid of an appropriate beam swinger system) and fragments are collected in the polar angular range of 0 o -10 o in a solid angle of ∆Ω = 50 msr.…”

Section: Reactions With the 40 Ar Projectile At 15 Mev/nucleonsupporting

confidence: 65%

Neutron-rich rare isotope production with stable and radioactive beams in the mass range A ∼ 40–60 at beam energy around 15 MeV/nucleon

Papageorgiou¹,

Souliotis²,

Tshoo³

et al. 2018

J. Phys. G: Nucl. Part. Phys.

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We studied the production of neutron-rich nuclides in multinucleon transfer collisions of stable and radioactive beams in the mass range A∼40-60. We first presented our experimental cross section data of projectile fragments from the reaction of 40 Ar(15 MeV/nucleon) with 64 Ni, 58 Ni and 27 Al. We then compared them with calculations based on either the deep-inelastic transfer (DIT) model or the constrained molecular dynamics (CoMD) model, followed by the statistical multifragmentation model (SMM). An overall good agreement of the calculations with the experimental data is obtained. We continued with calculations of the reaction of 40 Ar (15 MeV/nucleon) with 238 U target and then with reactions of 48 Ca (15 MeV/nucleon) with 64 Ni and 238 U targets. In these reactions, neutron-rich rare isotopes with large cross sections are produced. These nuclides, in turn, can be assumed to form radioactive beams and interact with a subsequent target (preferably 238 U), leading to the production of extremely neutron-rich and even new isotopes (e.g. 60 Ca) in this mass range. We conclude that multinucleon transfer reactions with stable or radioactive beams at the energy of around 15 MeV/nucleon offer an effective route to access extremely neutron-rich rare isotopes for nuclear structure or reaction studies.

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Section: Reactions With the 40 Ar Projectile At 15 Mev/nucleonsupporting

confidence: 65%

Neutron-rich rare isotope production with stable and radioactive beams in the mass range A ∼ 40–60 at beam energy around 15 MeV/nucleon

Papageorgiou¹,

Souliotis²,

Tshoo³

et al. 2018

J. Phys. G: Nucl. Part. Phys.

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“…The RAON facility [55] is under construction and will be the first RIB facility in Korea, providing exotic and unique radioactive isotopes for key experiments in many areas of nuclear physics and nuclear astrophysics. The stable beam commissioning is expected to begin in 2021 and RI beams will be produced by the Korea Broad acceptance Recoil Spectrometer & Apparatus (KoBRA) [56]. Moreover, the Center for Exotic Nuclear Studies, CENS, was recently launched at Institute for Basic Science (IBS).…”

Section: Koreamentioning

confidence: 99%

“…A recent precision mass measurement at HIRFL indicated that the rp-process may go through the Zr-Nb region, suggesting less feasible to have a previously reported Zr-Nb cycle at 84 Mo [63]. 56 Ni(n,p) 56 Co has been identified as the critical reaction which impact the nucleosynthesis [206]. This reaction will be studied indirectly by slowing-down beams with a novel technique in the OEDO (Optimized Energy Degrading Optics for RI beam) project, which is installed in RIKEN RIBF by CNS [207].…”

Section: Explosive Hydrogen Burning In Novae X-ray Bursts and Type II Supernovaementioning

confidence: 99%

“…Systematic theoretical calculations of the neutrinonucleus reaction cross sections have been performed based on sophisticated theoretical models such as nuclear shell models using new generations of Hamiltonian based on the progress in physics of exotic nuclei [266,267] and quasi-particle random phase approximation (QRPA) [268,269]. The results very well explain the experimental data on 12 C [270] and 56 Fe [271,272], and these models have been extensively applied to provide unmeasured νnucleus reaction cross sections of astrophysical interest.…”

Section: Nuclear Electroweak Response and ν-Astrophysicsmentioning

confidence: 99%

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Progress in nuclear astrophysics of east and southeast Asia

Aziz

Ahmad²,

Ahn³

et al. 2021

AAPPS Bull.

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Nuclear astrophysics is an interdisciplinary research field of nuclear physics and astrophysics, seeking for the answer to a question, how to understand the evolution of the universe with the nuclear processes which we learn. We review the research activities of nuclear astrophysics in east and southeast Asia which includes astronomy, experimental and theoretical nuclear physics, and astrophysics. Several hot topics such as the Li problems, critical nuclear reactions and properties in stars, properties of dense matter, r-process nucleosynthesis, and ν-process nucleosynthesis are chosen and discussed in further details. Some future Asian facilities, together with physics perspectives, are introduced.

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“…We have recently presented our efforts to study the production of neutron-rich rare isotopes employing the mechanism of multinucleon transfer with stable or radioactive beams in the energy range 15-25 MeV/nucleon expected from the RISP accelerator facility [1][2][3]. We showed that this approach -termed QP (quasiprojectile) fragmentation -offers the possibility of essentially adding neutrons (along with the usual stripping of protons) to a given stable (or radioactive) projectile by its interaction with a neutron-rich target.…”

Section: Introductionmentioning

confidence: 99%

Rare Isotope Production in peripheral heavy-ion collisions in the energy range 15-25 MeV/nucleon

Papageorgiou

Souliotis

Kwon³

et al. 2019

hnps

Self Cite

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In this contribution we summarize recent efforts to describe the production of rare isotopes with beams of 15–25 MeV/nucleon expected from low-energy facilities. We first present calculated production cross sections of proton-rich nuclides from collisions of stable beams of mass A∼60–80. Our calculations are performed with the phenomenological deep-inelastic transfer (DIT) model and the microscopic con- strained molecular dynamics model (CoMD). De-excitation of the excited quasipro- jectiles from the dynamical stage of the reaction is performed with the statistical multifragmentation model (SMM). In addition to the efforts on proton-rich nuclides, we investigated the possibility of producing neutron-rich rare isotopes in the mass range A∼180–200, i.e. near the third r-process peak of A=195. We performed calcu- lations for a 208Pb (15MeV/nucleon) beam and find that the multinucleon transfer mechanism leads to very neutron-rich nuclides in this mass range. We believe that our continued progress on the study of multinucleon transfer reactions using heavy- ion beams of 15–25 MeV/nucleon, can provide new opportunities in rare isotope research in the near future, as planned at the KOBRA facility of RISP in Korea.

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Design status of KOBRA for rare isotope production and direct measurements of radiative capture cross sections

Cited by 23 publications

References 27 publications

Neutron-rich rare isotope production with stable and radioactive beams in the mass range A ∼ 40–60 at beam energy around 15 MeV/nucleon

Neutron-rich rare isotope production with stable and radioactive beams in the mass range A ∼ 40–60 at beam energy around 15 MeV/nucleon

Progress in nuclear astrophysics of east and southeast Asia

Rare Isotope Production in peripheral heavy-ion collisions in the energy range 15-25 MeV/nucleon

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