Author/Authors :
Anderson، نويسنده , , M. and Bieser، نويسنده , , F. and Bossingham، نويسنده , , R. and Cebra، نويسنده , , D. and Hjort، نويسنده , , E.L. and Klein، نويسنده , , S.R. and Kleinfelder، نويسنده , , S. and Vu، نويسنده , , C.Q. and Wieman، نويسنده , , H.، نويسنده ,
Abstract :
We describe the readout electronics for the STAR Time Projection Chamber. The system is made up of 136,608 channels of waveform digitizer, each sampling 512 time samples at 6–12 Mega-samples per second. The noise level is about 1000 electrons, and the dynamic range is 800:1, allowing for good energy loss (dE/dx) measurement for particles with energy losses up to 40 times minimum ionizing. The system is functioning well, with more than 99% of the channels working within specifications.
