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May 18 – 20, 2015
National Superconducting Cyclotron Laboratory
US/Michigan timezone
Registration deadline Sunday, 9 May!

Current Status of SπRIT Time-Projection Chamber Project

May 19, 2015, 2:50 PM
25m
Lecture Hall (National Superconducting Cyclotron Laboratory)

Lecture Hall

National Superconducting Cyclotron Laboratory

640 South Shaw Lane East Lansing, MI 48824
Oral Presentation Active target detectors and associated electronics Session 7

Speaker

Dr Mizuki Kurata-Nishimura (RIKEN)

Description

The SAMURAI Pion-Reconstruction and Ion-Tracker (SπRIT) has recently been constructed at Michigan State University as part of an international effort to constrain the symmetry-energy term in the nuclear Equation of State (EoS). The SπRIT-TPC is designed for measurements of the density dependence of the symmetry-energy term at around twice the saturation density. This study will be performed in the SAMURAI spectrometer at the Radioactive Isotope Beam Factory (RIBF) at RIKEN by measuring yield ratios for pions and other light isospin observables from central collisions of neutron-rich ions, such as 132Sn + 124Sn. The SπRIT-TPC was designed to fit inside the SAMURAI spectrometer, and thus has an overall design height of 742 mm, with a vertical drift length of 500 mm in the detection volume. The installation of the TPC into the spectrometer has been successfully tested in the summer of 2014, and an operational test was performed using the magnetic field. Signals from cosmic rays were multiplied with a multi-wire anode and image charges from this multiplication were read out on portions of the 12096 channel pad-plane using the recently developed Generic Electronics for TPCs. Significant progress has been achieved for the SπRIT-TPC experiment, and preparations continue to move forward. The current status of the SpRIT-TPC project will be presented in this talk. This material is based on work supported by the DOE under Grant No. DE-SC0004835, NSF under Grant No. PHY-1102511 and the Japanese MEXT Grant-in-Aid for Scientific Research on Innovative Area Grant No. 24105004

Primary authors

Co-authors

Dr Alan McIntosh (Cyclotron Institute, Texas A&M University) Prof. Betty Tsang (Michigan State University) Ms Corinne Anderson (National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University) Mr Genie Jhang (RIKEN Nishina Center,Department of Physics, Korea University) Mr Hananiel Setiawan (National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University) Mr Justin Estee (National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University) Dr Rebecca Shane (National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University) Dr Sherry J. Yennello (Cyclotron Institute, Texas A&M University) Tadaaki Isobe (RIKEN) Dr Tetsuya Murakami (Department of Physics, Kyoto University) Prof. William Lynch (National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University) Mr William Powell (Department of Physics, University of Liverpool) Mr suwat tangwancharoen (National Superconducting Cyclotron Laboratory)

Presentation materials

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