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Title: Electronics for the APEX silicon array

Abstract

APEX uses 432 Si PIN diodes to measure the energy and time of flight of electrons and positrons. Each detector connects to a fast-slow preamplifier (PA). Thirty-six PAs mount on one motherboard that distributes the input and output signals and monitors detector voltage and leakage currents. An 8-channel Shaping Amplifier (SA) shapes and amplifies the slow signal from the preamplifier. A 16-channel Peak-to-FERA Converter (PTF) stretches the output signal of the SA. A Fast-Encoding & Readout ADC (FERA) digitizes the stretched signal. A 16-channel Fast Amplifier (FA) amplifies the fast timing signal from the preamplifier. The amplified signal triggers a Constant-Fraction Discriminator (CFD). A FERA digitizes the charge output of the CFD. All of these components, except the FAs and the FERAs, have been custom built for APEX, Their design and performance will be discussed.

Authors:
 [1]
  1. Univ. of Rochester, NY (United States)
Publication Date:
OSTI Identifier:
386989
Report Number(s):
CONF-931044-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:026927
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 38; Journal Issue: 9; Conference: Fall meeting of the Division of Nuclear Physics of the American Physical Society, Pacific Grove, CA (United States), 20-23 Oct 1993; Other Information: PBD: Oct 1993
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 43 PARTICLE ACCELERATORS; SI SEMICONDUCTOR DETECTORS; ELECTRONIC EQUIPMENT; DESIGN; ATLAS SUPERCONDUCTING LINAC; TIME-OF-FLIGHT METHOD

Citation Formats

Perera, P A.A. Electronics for the APEX silicon array. United States: N. p., 1993. Web.
Perera, P A.A. Electronics for the APEX silicon array. United States.
Perera, P A.A. 1993. "Electronics for the APEX silicon array". United States.
@article{osti_386989,
title = {Electronics for the APEX silicon array},
author = {Perera, P A.A.},
abstractNote = {APEX uses 432 Si PIN diodes to measure the energy and time of flight of electrons and positrons. Each detector connects to a fast-slow preamplifier (PA). Thirty-six PAs mount on one motherboard that distributes the input and output signals and monitors detector voltage and leakage currents. An 8-channel Shaping Amplifier (SA) shapes and amplifies the slow signal from the preamplifier. A 16-channel Peak-to-FERA Converter (PTF) stretches the output signal of the SA. A Fast-Encoding & Readout ADC (FERA) digitizes the stretched signal. A 16-channel Fast Amplifier (FA) amplifies the fast timing signal from the preamplifier. The amplified signal triggers a Constant-Fraction Discriminator (CFD). A FERA digitizes the charge output of the CFD. All of these components, except the FAs and the FERAs, have been custom built for APEX, Their design and performance will be discussed.},
doi = {},
url = {https://www.osti.gov/biblio/386989}, journal = {Bulletin of the American Physical Society},
number = 9,
volume = 38,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 1993},
month = {Fri Oct 01 00:00:00 EDT 1993}
}