Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2018, Vol. 29 ›› Issue (12): 171 doi: 10.1007/s41365-018-0507-9

Special Issue: Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2018)

• Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2018) • Previous Articles     Next Articles

Development of large acceptance multi-purpose spectrometer in Korea for symmetry energy

Byungsik Hong 1 • Jung Keun Ahn 1 • Gyeonghwan Bak 2 • Jamin Jo 1 • Minho Kim 1 • Eun Joo Kim 3 • Young Jin Kim 4 • Young Jun Kim 1 • Minjung Kweon 5 • Hanseul Lee 2 • Hyo Sang Lee 4 • Jong-Won Lee 1 • Jung Woo Lee 1 • Kyong Sei Lee 1 • Byul Moon 1 • Dong Ho Moon 2 • Benard Mulilo 1 • Jaebeom Park 1 • Min Sang Ryu 4 • Hyunha Shim 1 • LAMPS Collaboration   

  1. 1 Department of Physics, Korea University, Seoul 02841, Republic of Korea
    2 Department of Physics, Chonnam National University, Gwangju 61186, Republic of Korea
    3 Division of Science Education, Chonbuk National University, Jeonju 54896, Republic of Korea
    4 Rare Isotope Science Project, Institute for Basic Science, Daejeon 34047, Republic of Korea
    5 Department of Physics, Inha University, Incheon 22212, Republic of Korea
  • Received:2018-08-06 Revised:2018-10-05 Accepted:2018-10-09
  • Contact: Byungsik Hong E-mail:bhong@korea.ac.kr
  • Supported by:

    This work was supported by the National Research Foundation of Korea (NRF) Grants funded by the Korea government (MSIT) (2018M7A1A1053367, 2017M7A1A1019378, and 2013M7A1A1075765).

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Byungsik Hong, Jung Keun Ahn, Gyeonghwan Bak, Jamin Jo, Minho Kim, Eun Joo Kim, Young Jin Kim, Young Jun Kim, Minjung Kweon, Hanseul Lee, Hyo Sang Lee, Jong-Won Lee, Jung Woo Lee, Kyong Sei Lee, Byul Moon, Dong Ho Moon, Benard Mulilo, Jaebeom Park, Min Sang Ryu, Hyunha Shim, (LAMPS Collaboration). Development of large acceptance multi-purpose spectrometer in Korea for symmetry energy.Nuclear Science and Techniques, 2018, 29(12): 171     doi: 10.1007/s41365-018-0507-9

Abstract: The Rare Isotope Accelerator complex for ON-line experiments (RAON) is a new radioactive ion beam accelerator facility under construction in Korea. The large acceptance multi-purpose spectrometer (LAMPS) is one of the experimental devices for nuclear physics at RAON. It focuses on the nuclear symmetry energy at supra-saturation densities. The LAMPS Collaboration has developed and constructed various detector elements, including a time projection chamber (TPC) and a forward neutron detector array. From the positron beam test, the drift velocity of the secondary electrons in the TPC is 5.3 ± 0.2 cm/ μ s with P10 gas mixture, and the position resolution for pads with dimensions of 4 × 15 mm2 is in the range of ∼ 0.6–0.8 mm, depending on the beam position. From the neutron beam test, the energy resolution of the prototype neutron detector module is determined to be 3.4%, and the position resolution is estimated to be better than 5.28 cm. At present, the construction of the LAMPS neutron detector system is in progress.

Key words: RAON, LAMPS, Radioactive ion beam, Heavy-ion collision, TPC, Neutron detector, Nuclear symmetry energy, RCNP, ELPH