Study of 18-cm long single-sided ac-coupled silicon microstrip detectors

Journal Article · Sat Apr 01 04:00:00 EST 1995 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.372137· OSTI ID:64623

Kollipara, R T; Arodzero, A; Bashindzhagyan, G ^[1]

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1. Univ. of Oregon, Eugene, OR (United States); and others

The SSC GEM silicon Central Tracker design incorporated 18-cm long single-sided ac-coupled silicon microstrip ladders. Compared to the 12-cm long ladders considered in the preliminary stages of the tracker design, the 18-cm long ladders have the advantage of reduced cost, channel count and overall power consumption, and led to a simplified tracker assembly. However, such long strips also present the challenge of maintaining satisfactory performance. The increased capacitance and series resistance contribute to lower signal-to-noise ratios, longer time walk, higher power consumption per channel and increased probability of crosstalk to neighboring channels. In this paper, an accurate method to calculate the geometric capacitance of the ac-coupled microstrips is presented and the calculated results are compared with measurements. SPICE simulations are performed to predict the noise, the extent of interstrip capacitive coupling and the dispersion of the detector signal due to the finite series resistance of the metal strips and the long length of the detector. The influence of the preamplifier current and the shaping time on the signal and noise levels is also presented. The study concludes that the 18-cm long ladders can successfully satisfy the performance goals of the GEM silicon Central Tracker.

• DOE Contract Number: FG06-85ER40224
• OSTI ID: 64623
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 2 Vol. 42; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
CALCULATION METHODS
COMPUTERIZED SIMULATION
DESIGN
ENERGY CONSUMPTION
PARTICLE TRACKS
PERFORMANCE
S CODES
SI SEMICONDUCTOR DETECTORS
SUPERCONDUCTING SUPER COLLIDER
THEORETICAL DATA