Author/Authors :
Pernegger، نويسنده , , H and Back، نويسنده , , B.B. and Baker، نويسنده , , M.D and Barton، نويسنده , , D.S and Betts، نويسنده , , R.R and Bindel، نويسنده , , R and Budzanowski، نويسنده , , A and Busza، نويسنده , , W and Carroll، نويسنده , , A and Decowski، نويسنده , , M.P and Garcia، نويسنده , , E and George، نويسنده , , N and Gulbrandsen، نويسنده , , K and Gushue، نويسنده , , S and Halliwell، نويسنده , , C and Hamblen، نويسنده , , J and Heintz، نويسنده ,
Abstract :
The Phobos experiment concluded its first year of operation at RHIC taking data in Au–Au nucleus collisions at snn=65 GeV and 130 GeV/nucleon pair. First preliminary results of the performances of our silicon detectors in the experiment are summarized. The Phobos experiment uses silicon pad detectors for both tracking and multiplicity measurements. The silicon sensors vary strongly in their pad geometry. In this paper, we compare the signal response, the signal uniformity and signal-to-noise performance as measured in the experiment for the different geometries. Additionally, we investigate effects of very high channel occupancy on the signal response.
Keywords :
Solid-state detector , Silicon signal , Silicon pad detector , Heavy ion collision , RHIC
