SN0416 : pVPD Simulations
Updated on Mon, 2007-06-18 19:57. Originally created by chajecki on 2007-06-18 19:57.
| Author(s) | : | W. Llope |
| Date | : | Mar. 6, 2000 |
| File(s) | : | sn0416.pdf |
| Abstract | : | Simulations specifically on the performance of the pVPD for providing ``start signals" to the TOFp system are described. Considerable attention is paid to the definition of the quantity ``hits" in the simulations. The results on the pVPD performance for providing fast starts in full energy Au+Au and Si+Si events over a range of impact parameters and pVPD positions will be presented. We find the performance of a 6 channel (3 per side) pVPD is excellent in practically any Au+Au collision in STAR's acceptance. The position of the pVPD that optimizes the performance is just outside the beam pipe and at a |Z| position in STAR in the range of 4.5 to 5 meters, which is a viable location mechanically. The pVPD system also works very well in the Si+Si collisions that were studied (b less than or equal to 3fm). All indications are that a six channel pVPD at Z ~ 4.5m can meet all performance goals in RHIC heavy-ion running. |
| Keywords | : | tof vpd timing starts time of flight
|
| Category | : | |
|
