Study of performances of a straw tube detector with high rate

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Presentation transcript:

Study of performances of a straw tube detector with high rate S. Roy*1, N. Nandi2, R. P. Adak1, S. Biswas+1, S. Das1, S. K. Ghosh1, S. K. Prasad1, S. Raha1 1Department of Physics and CAPSS, Bose Institute, EN-80, Sector V, Kolkata-700091, India 2Raja Peary Mohan College, 1 Acharya Dhruba Pal Road, Uttarpara, Hooghly, West Bengal- 712258, India e-mail: * shreyaroy@jcbose.ac.in, +saikat@jcbose.ac.in, saikat.ino@gmail.com, saikat.biswas@cern.ch Basic characteristic studies are performed for straw tube with Ar/CO2 gas in 70/30 and 90/10 ratio using conventional NIM electronics. Count rate, gain, energy resolution, rate handling capacity are studied With 5.9 keV Fe55 X-ray the gain and the energy resolution remain constant up to a rate of about 20 kHz/mm and 32 kHz/mm for Ar/CO2 70/30 and 90/10 respectively Use of the straw tube in CBM MUCH is under investigation. @ 1650 V Ar/CO2 : 70/30 Fe55 Spectrum of the Straw Tube Detector Gain and energy resolution Vs. voltage Gain Vs. rate Energy resolution Vs. rate