Radioactive ion beam line in Lanzhou

Wang, Zhan; Guo, Zhimou; Guanhua, Liu; Dang, Jianrong; He, Ruosong; Zhou, Sheng; Yin, Qingrui; Luo, Y. X.; Wang, Yifang; Bian, Wei; Sun, Z.; Xiao, Guoqing; Wang, Jinchuan; Jiang, Shanhong; Li, Jiaxing; Meng, Xuying; Zhang, Wansheng; Qing, Lijun; Wang, Quanjin

doi:10.1007/bf02882249

Cited by 13 publications

(7 citation statements)

References 16 publications

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“…MeV continuous wave proton beam with a 10 mA current in order to drive an experimental subcritical nuclear reactor [43,44]. It can offer a much higher current and make a precision measurement with CEνNS possible.…”

Section: Formalism and Detection Of Ceνnsmentioning

confidence: 99%

Extracting nuclear form factors with coherent neutrino scattering

Ciuffoli

Evslin

et al. 2018

Phys. Rev. D

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Coherent elastic neutrino-nucleus scattering (CEνNS) can be used to determine the neutron part of nuclear form factors, unlocking intrinsic properties of nuclear structure. In contrast with other such methods, CEνNS is free from both strong interaction effects and Coulomb distortions. We propose precision measurements of CEνNS with an upcoming accelerator facility and determine the corresponding requirements for such a neutrino detector. We find that most significant backgrounds come from fast neutrons, induced by cosmogenic muons or from the pion decays at rest in the target station. With ton-scale liquid noble gas detectors, we will not only achieve percent level precision in the measurement of neutron radii but also clarify contributions of higher-order moments to nuclear form factors.

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Section: Formalism and Detection Of Ceνnsmentioning

confidence: 99%

Extracting nuclear form factors with coherent neutrino scattering

Ciuffoli

Evslin

et al. 2018

Phys. Rev. D

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“…The Radioactive Ion Beam Line in Lanzhou (RIBLL) was built at Institute of Modern Physics in 1997 [25]. It consists of 4 dipole magnets and 16 qudrapole magnets with the structure of two doubley acromatic parts (see figure.1 for the schematic diagram).…”

Section: Methodsmentioning

confidence: 99%

Direct Breakup Rections Of 8B At Fermi Energy

Wang¹,

Jin²,

Yang³

et al. 2017

Proceedings of the 26th International Nuclear Physics Conference — PoS(INPC2016)

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The longitudinal momentum distributions of the core-like fragment 7 Be from the breakup of 8 B on 12 C target have measured at the energy of 36MeV/u at the Radioactive Ion Beam Line in Lanzhou (RIBLL). In order to distinguish the stripping and diffraction mechanisms involving in breakup reaction of 8 B, both fragments of 7 Be and proton are measured coincidently. With this coincident measurement, the widths of longitudinal momentum distribution are deduced with the values of 124±17MeV and 92±7 MeV for stripping and diffraction mechanism respectively. It is found that the longitudinal momentum width of stripping component is larger than that of diffraction component, which is different from the breakup reaction at high energy as around GeV/u. The theoretical calculations are compared with these experimental results.

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“…The primary beam had an average intensity of about 130 e nA. The 7 Be and 8 B projectile-like fragments were separated by their magnetic rigidity (Bρ) and delivered by the Radioactive Ion Beam Line in Lanzhou (RIBLL) [44,45] to the scattering chamber. The average intensities of 7 Be and 8 B radioactive beams were 6500 and 550 pps, with purities of 57.6% and 4.9%, respectively.…”

Section: Experiments and Data Analysismentioning

confidence: 99%

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Wang¹,

Yang²,

Moro³

et al. 2021

Phys. Rev. C

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Elastic scattering and breakup angular distributions of the weakly bound radioactive nucleus 8 B on a 208 Pb target at an incident energy of 238 MeV, which corresponds to four times the Coulomb barrier, have been measured at the HIRFL-RIBLL facility (Institute of Modern Physics, Lanzhou). The data have been analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalism. The measured and calculated elastic scattering angular distributions do not show any significant Coulomb rainbow suppression. The angular distribution for the breakup reaction was measured for the first time at this energy. The angular distribution of the 7 Be fragments could be reproduced considering elastic plus nonelastic breakup contributions, with the former evaluated with the CDCC calculations and the latter with the model of Ichimura, Austern, and Vincent [Phys. Rev. C 32, 431 (1985)]. The comparison of the breakup cross section of 8 B with that of 11 Be suggests that the Coulomb and centrifugal barriers encountered by the valence proton may suppress the breakup cross section.

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Radioactive ion beam line in Lanzhou

Abstract: In this presentation, we describe the radioactive ion beam line in Lanzhou (RIBLL), the main feature of RIBLL structure and main performances of RIBLL. Some preliminary experimental results are presented.

Cited by 13 publications

References 16 publications

Extracting nuclear form factors with coherent neutrino scattering

Extracting nuclear form factors with coherent neutrino scattering

Direct Breakup Rections Of 8B At Fermi Energy

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

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