The CLEO-III Trigger: Analog and digital calorimetry

G. D. Gollin; J. A. Ernst; J. B. Williams; M. J. Haney

doi:10.1109/23.940116

The CLEO-III Trigger: Analog and digital calorimetry

G. D. Gollin, J. A. Ernst, J. B. Williams, M. J. Haney

Research output: Contribution to journal › Conference article › peer-review

Abstract

The calorimetry subsystem of the CLEO-III Trigger incorporates both analog and digital electronics to provide pipelined trigger information every 42 ns with a latency of approximately 2.5 μs. This paper describes the pipelined signal-processing and pattern-recognition schemes used to provide calorimeter information to the experiment trigger, with somewhat greater emphasis on the analog components of the system. Analog processing is employed to address the quantization error caused by split energy deposition in adjacent calorimeter cells, and digital field programmable gate arrays are used extensively to filter and categorize the calorimeter energy topology. Timing, geographical, and energy information are all available for use in the calorimeter trigger.

Original language	English (US)
Pages (from-to)	547-551
Number of pages	5
Journal	IEEE Transactions on Nuclear Science
Volume	48
Issue number	3 I
DOIs	https://doi.org/10.1109/23.940116
State	Published - Jun 2001
Event	2000 Nuclear Science Symphosium (NSS) - Lyon, France Duration: Oct 15 2000 → Oct 20 2000

Keywords

Analog processing circuits
Calorimetry
Digital circuits
Field-programmable gate arrays (FPGAs)
Trigger circuits

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

Online availability

10.1109/23.940116

Library availability

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abstract = "The calorimetry subsystem of the CLEO-III Trigger incorporates both analog and digital electronics to provide pipelined trigger information every 42 ns with a latency of approximately 2.5 μs. This paper describes the pipelined signal-processing and pattern-recognition schemes used to provide calorimeter information to the experiment trigger, with somewhat greater emphasis on the analog components of the system. Analog processing is employed to address the quantization error caused by split energy deposition in adjacent calorimeter cells, and digital field programmable gate arrays are used extensively to filter and categorize the calorimeter energy topology. Timing, geographical, and energy information are all available for use in the calorimeter trigger.",

keywords = "Analog processing circuits, Calorimetry, Digital circuits, Field-programmable gate arrays (FPGAs), Trigger circuits",

author = "Gollin, {G. D.} and Ernst, {J. A.} and Williams, {J. B.} and Haney, {M. J.}",

note = "Funding Information: Manuscript received November 4, 2000; revised February 10, 2001. This work was supported in part by Department of Energy under Contract DE-FG02-91ER40677. The authors are with the High Energy Physics Group, University of Illinois, Urbana, IL 61801 USA (e-mail: [email protected]). Publisher Item Identifier S 0018-9499(01)04907-3.; 2000 Nuclear Science Symphosium (NSS) ; Conference date: 15-10-2000 Through 20-10-2000",

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AU - Gollin, G. D.

AU - Ernst, J. A.

AU - Williams, J. B.

AU - Haney, M. J.

N1 - Funding Information: Manuscript received November 4, 2000; revised February 10, 2001. This work was supported in part by Department of Energy under Contract DE-FG02-91ER40677. The authors are with the High Energy Physics Group, University of Illinois, Urbana, IL 61801 USA (e-mail: [email protected]). Publisher Item Identifier S 0018-9499(01)04907-3.

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AB - The calorimetry subsystem of the CLEO-III Trigger incorporates both analog and digital electronics to provide pipelined trigger information every 42 ns with a latency of approximately 2.5 μs. This paper describes the pipelined signal-processing and pattern-recognition schemes used to provide calorimeter information to the experiment trigger, with somewhat greater emphasis on the analog components of the system. Analog processing is employed to address the quantization error caused by split energy deposition in adjacent calorimeter cells, and digital field programmable gate arrays are used extensively to filter and categorize the calorimeter energy topology. Timing, geographical, and energy information are all available for use in the calorimeter trigger.

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KW - Digital circuits

KW - Field-programmable gate arrays (FPGAs)

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The CLEO-III Trigger: Analog and digital calorimetry

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