A Binary Readout System for Silicon Strip Detectors at the LHC

A. Ciocio, T. Collins, J. Emes, C. Haber, I. Kipnis, M. Shapiro, J. Siegrist, H. Spieler
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, U.S.A.

J. DeWitt, D. Dorfan, T. Dubbs, A. Grillo, B. Hubbard, W. Kroeger, T. Pulliam, W. Rowe, H. Sadrozinski, A. Seiden, E. Spencer, A. Webster, R. Wichmann, M. Wilder, D. Williams
Santa Cruz Institute for Particle Physics, University of California,
Santa Cruz, CA 95064, U.S.A.

Y. Iwata, T. Ohmoto, T. Ohsugi, M. Yoshikawa
Hiroshima University, Hiroshima, Japan

H. Iwasaki, T. Kohricki, T. Kondo, S. Terada, Y. Unno
KEK, Tsukuba, Japan

R. Takashima
Kyoto Univ. of Education, Kyoto, Japan

H. Maeohmichi, M. Takahata, N. Tamura
Okayama University, Okayama, Japan

Abstract:

A radiation-hard strip detector readout for use at the LHC is described. The readout chain comprises two ICs: an analog chip (preamplifier, shaper, comparator) utilizing radiation-hard bipolar transistor technology, and a digital chip (data buffer with time stamp and readout) fabricated in radiation-hard CMOS. Both ICs have 128 channels per chip, laid out to match a 50 m bonding pitch. The system operates at the LHC bunch crossing frequency of 40 MHz. We present results of both electronic measurements and beam tests with a heavily radiation-damaged detector.

• Introduction
• Implementation
• Experimental Results
• Conclusion
• References
• About this document ...