Speaker
Description
The Transition Radiation Detector (TRD) is one of the detector
components of the CBM expriment at FAIR, currently under construction.
Multi-Wire Proportional Chambers (MWPCs) with sizes of
$99\;\textrm{cm~x~} 99\; \textrm{cm}$ and $57\;\textrm{cm~x~}
57\;\textrm{cm}$ will record particle rates up to $120\;\textrm{kHz
cm}^{-2}$: the MWPCs are therefore designed to provide fast signal
collection times below $300\;\textrm{ns}$. They use Xenon as counting
gas and will deliver electron-pion separation for the measurement of
intermediate mass dielectrons via the detection of TR photons.
Furthermore, the TRD is essential for the identification of hypernuclei
and as intermediate tracking device.
We will address the production of TRD chambers with its QA steps such
as, e.g., automatised gain homogeneity scans and thorough monitoring of
the detector gas tightness (upper tolerated loss $1\;\textrm{ml
h}^{-1}$). Moreover, the detector readout with online data reduction and
the performance of TRD pre-production chambers being operated at the
mCBM experiment (FAIR Phase~0 programme) as tracking device will be
presented.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | CBM |
