N. Bacchetta et al., Improvement in breakdown characteristics with multiguard structures in microstrip silicon detectors for CMS, NUCL INST A, 461(1-3), 2001, pp. 204-206
To obtain full charge collection the CMS silicon detectors should be able t
o operate at high bias voltage. We observed that multiguard structures enha
nce the breakdown performance of the devices on several tens of baby detect
ors designed for CMS. The beneficial effects of the multiguard structures s
till remains after the strong neutron irradiation performed to simulate the
operation at the LHC. (C) 2001 Elsevier Science B.V. All rights reserved.