The sPHENIX is the upgrade project of the PHENIX detector whose operation has just ended. This upgrade project mainly focuses on the detailed measurement of the jets and Upsilons.
We have proposed to build a time projection chamber (TPC) as the main tracker for the sPHENIX, which has a radial coverage of 20 cm to 78cm with rapidity coverage of $|\eta|<1.1$ and full azimuth. The number of readout channels will be ~ 200K, and the raw data volume is expected to reach as much as ~4Gbits/sec. In order to fully exploit the data within the limitation of the bandwidth of the end tape device, we need to introduce a new continuous readout scheme followed by a fast data processing system.
In this presentation, we will show the initial design of the front end readout scheme for the sPHENIX TPC.
|Future Experimental Facilities, Upgrades, and Instrumentation