Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2105p&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
Scientific paper
A Silicon Charge Detector (SCD) is designed and constructed for the Cosmic Ray Energetics And Mass (CREAM) experiment to provide precision measurements of charge of incident cosmic ray particles with resolution of 0.2 charge unit. The aim of the CREAM experiment is to understand the source and acceleration mechanisms of ultra high energy cosmic ray particles. The payload is planned for launch in December 2004 from McMurdo Antarctica as an Ultra Long Duration Balloon mission. The SCD consists of 26 ladders each holding 7 silicon sensor modules and associated analog readout electronics. The silicon sensors are DC coupled PIN dio de made from 380 µm thick, n-type wafers. Each sensor is pixellated with 16 cells, 2.12 cm2 in area, to distinguish the incident particle charge in the presence of backscattered particles resulting from interactions in the lower parts of the instrument (Carb on target and Calorimeter). We present the status of the SCD, including readout electronics and mechanical support structure.
Hahn Jong Hoon
Han Wei
Hyun H. J.
Hyun S.Y.
Kim Hyeong-Jin
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