Status of the Belle SVD detector
Abstract
The Belle spectrometer was designed for studies of B meson decays at an asymmetric e +e - collider operating at the ϒ(4S) resonance. One of its crucial components, a silicon vertex detector (SVD), is placed just outside a cylindrical beryllium beam-pipe. After a year of Belle operation an upgraded version of SVD was installed during the regular summer shut-down. The new SVD follows the same design, with a few important improvements. Rad-soft readout electronics was replaced by rad-tolerant one, allowing for longer lifetime of the detector. A new radiation and temperature monitoring system was developed and implemented. A saw-shaped inner surface was introduced in the beam-pipe to prevent potential synchrotron radiation damage. The upgraded detector started operating successfully in October 2000.
- Publication:
-
Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- February 2002
- DOI:
- 10.1016/S0168-9002(01)01813-7
- Bibcode:
- 2002NIMPA.478..296A