Author/Authors :
Okamura، نويسنده , , H. and Ishida، نويسنده , , S. and Sakamoto، نويسنده , , N. and Otsu، نويسنده , , H. and Uesaka، نويسنده , , T. and Wakasa، نويسنده , , T. and Satou، نويسنده , , Y. and SAKAI، نويسنده , , H. and Niizeki، نويسنده , , T. and Ohnuma، نويسنده , , H. and Ichihara، نويسنده , , T.، نويسنده ,
Abstract :
A detector system of the first focal plane of SMART, the 135 MeV/u high-resolution spectrometer at RIKEN Accelerator Research Facility, is described. It consists of a pair of multi-wire drift chambers and a trigger scintillator hodoscope contained in a He-filled detector box. A major subject using this system is the measurement of the (d,2He) reaction making the most of its large angular and momentum acceptances. Without seriously sacrificing the detection efficiency, reasonably good energy and angular resolutions for 2He, 460 keV and 9 mrad (FWHM), respectively, have been achieved after optimizing the optics property of the spectrometer.
Keywords :
Broad-band spectrometer , Multi-wire drift chamber , (d , 2He) reaction
