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2012•Progress of Theoretical and Experimental PhysicsOpen access

The SHARAQ spectrometer

Т. Уесака, S. Shimoura, H. Sakai

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Abstract

The SHARAQ spectrometer and a high-resolution beam-line have been constructed at the RI Beam Factory at RIKEN. They are designed to achieve a momentum resolution of δp/p = 1/14 700 and an angular resolution of 1 mrad. Low-pressure multi-wire drift chambers working at a high rate of 2 MHz and cathode read-out drift chambers have been developed as beam-line tracking detectors and focal plane detectors, respectively. A method that facilitates quick tuning of the RI beam transport has been established. The SHARAQ spectrometer and the beam-line were commissioned in 2009 and put into use in several experimental programs that exploits advantages of RI-beam induced charge exchange reactions.

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What this paper is about

The SHARAQ spectrometer and a high-resolution beam-line have been constructed at the RI Beam Factory at RIKEN. They are designed to achieve a momentum resolution of δp/p = 1/14 700 and an angular resolution of 1 mrad. Low-pressure multi-wire drift chambers working at a high rate of 2 MHz and cathode read-out drift chambers have been developed as beam-line tracking detectors and focal plane detectors, respectively. A method that facilitates quick tuning of the RI beam transport has been established. The SHARAQ spectrometer and the beam-line were commissioned in 2009 and put into use in several experimental programs that exploits advantages of RI-beam induced charge exchange reactions.

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Available abstract

The SHARAQ spectrometer and a high-resolution beam-line have been constructed at the RI Beam Factory at RIKEN. They are designed to achieve a momentum resolution of δp/p = 1/14 700 and an angular resolution of 1 mrad. Low-pressure multi-wire drift chambers working at a high rate of 2 MHz and cathode read-out drift chambers have been developed as beam-line tracking detectors and focal plane detectors, respectively. A method that facilitates quick tuning of the RI beam transport has been established. The SHARAQ spectrometer and the beam-line were commissioned in 2009 and put into use in several experimental programs that exploits advantages of RI-beam induced charge exchange reactions.

Key concepts: Physics, Spectrometer, Beam (structure), Detector, Beamline, Optics, Tracking (education), Resolution (logic)

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