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A Readout System for the STAR Time Projection Chamber

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arxiv nucl-ex/0205014 v1 pith:I5GKPEVN submitted 2002-05-22 nucl-ex

M. Anderson , R. Bossingham , F. Bieser , D. Cebra , E. L. Hjort , S. R. Klein , C. Q. Vu , H. Wieman This is my paper
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keywords systemtimechamberchannelsenergyprojectionreadoutstar
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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.

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