TY - JOUR
AU - Redford, S
AB - In order to achieve its primary objectives of heavy-flavourtagging and tau lepton identification, the CLIC vertex detector mustprecisely reconstruct displaced vertices. This requires accuratedetermination of the impact parameter and charge of tracksoriginating from the secondary vertex. Excellent spatial resolutionmust therefore be provided down to low polar angles, whilstmaintaining low occupancy, low mass and low power dissipation. Theserequirements challenge current technological limits, and demand abroad programme of R&D. A detector concept is currently underdevelopment, comprising a hybrid pixel detector of small-pitchreadout ASICs implemented in 65nm CMOS technology (CLICpix)combined with ultra-thin sensors. The readout chips are low-power,and power-pulsing is used to reduce further their powerdissipation. This enables a forced gas cooling system in the vertexdetector region. In this paper, the CLIC vertex detectorrequirements are reviewed and the current status of R&D on sensors,readout, powering, cooling and supports is presented.
TI - CLIC vertex detector R&D
JF - Journal of Instrumentation
DO - 10.1088/1748-0221/9/08/C08014
DA - 2014-08-01
UR - https://www.deepdyve.com/lp/iop-publishing/clic-vertex-detector-r-d-vIb4iWplKV
SP - C08014
VL - 9
IS - 08
DP - DeepDyve
ER -