Abstract
The STAR experiment at RHIC (Relativistic Heavy Ion Collider) is in the process of upgrading the inner detector region of the experiment to improve the vertex resolution. We describe the current design of a MAPS based vertex detector which is the innermost and highest resolution detector of the set of three planned upgrade detectors. This detector will enable the identification of decay vertices displaced from the interaction vertex by 100-150 μm and extend the capabilities of the STAR detector in the heavy flavor domain. The detector is now a Department of Energy Nuclear Physics construction project and preliminary engineering production of limited set of detector ladders will begin in November of 2012. The production for the associated mechanical and electronics systems has already begun. We present selected detector design characteristics and prototyping results, which help to validate the design in preparation for the construction of the detector as well as first tests of the production prototype ladders, electronics and mechanical systems.
| Original language | English |
|---|---|
| Journal | Proceedings of Science |
| Volume | 2012-September |
| State | Published - 2012 |
| Externally published | Yes |
| Event | 21st International Workshop on Vertex Detectors, Vertex 2012 - Jeju, Korea, Republic of Duration: Sep 16 2012 → Sep 21 2012 |
Funding
We gratefully acknowledge Marc Winter and the IPHC group for the development of the PXL detector sensors. This work received support in part from the US Department of Energy – Contract no. DE-AC02-05CH11231, Office of Nuclear Physics.
| Funders | Funder number |
|---|---|
| US Department of Energy |