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Title: Method and apparatus for signal processing in a sensor system for use in spectroscopy

Abstract

A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included, time-to-amplitude converters (TACs) convert time of arrival to analog voltage and an analog multiplexer provides FIFO output. A multi-element sensor system for spectroscopy includes detector elements, channels, trigger comparators, PDs, a switch, and a logic circuit with asynchronous write pointer. The system includes TACs, a multiplexer and analog-to-digital converter.

Inventors:
 [1];  [2];  [3]
+ Show Inventor Affiliations
  1. Bellport, NY
  2. Nesconset, NY
  3. Natrona Heights, PA
Issue Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
984324
Patent Number(s):
7378637
Application Number:
10/835,092
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
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DOE Contract Number:  
AC02-98CH10886
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

O'Connor, Paul, DeGeronimo, Gianluigi, and Grosholz, Joseph. Method and apparatus for signal processing in a sensor system for use in spectroscopy. United States: N. p., 2008. Web.
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O'Connor, Paul, DeGeronimo, Gianluigi, & Grosholz, Joseph. Method and apparatus for signal processing in a sensor system for use in spectroscopy. United States.
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O'Connor, Paul, DeGeronimo, Gianluigi, and Grosholz, Joseph. Tue . "Method and apparatus for signal processing in a sensor system for use in spectroscopy". United States. https://www.osti.gov/servlets/purl/984324.
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@article{osti_984324,
title = {Method and apparatus for signal processing in a sensor system for use in spectroscopy},
author = {O'Connor, Paul and DeGeronimo, Gianluigi and Grosholz, Joseph},
abstractNote = {A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included, time-to-amplitude converters (TACs) convert time of arrival to analog voltage and an analog multiplexer provides FIFO output. A multi-element sensor system for spectroscopy includes detector elements, channels, trigger comparators, PDs, a switch, and a logic circuit with asynchronous write pointer. The system includes TACs, a multiplexer and analog-to-digital converter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 27 00:00:00 EDT 2008},
month = {Tue May 27 00:00:00 EDT 2008}
}
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Works referenced in this record:

Amplitude and time measurement asic with analog derandomization: first results
journal, August 2003

Analog CMOS peak detect and hold circuits. Part 2. The two-phase offset-free and derandomizing configuration
journal, May 2002

  • De Geronimo, Gianluigi; O’Connor, Paul; Kandasamy, Anand
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 484, Issue 1-3
  • https://doi.org/10.1016/S0168-9002(01)02060-5

Analog peak detector and derandomizer for high-rate spectroscopy
journal, August 2002

Amplitude and time measurement ASIC with analog derandomization
journal, June 2003

  • O’Connor, P.; De Geronimo, G.; Kandasamy, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 505, Issue 1-2
  • https://doi.org/10.1016/S0168-9002(03)01095-7

Amplitude and time measurement ASIC with analog derandomization
conference, January 2003

Analog CMOS peak detect and hold circuits. Part 1. Analysis of the classical configuration
journal, May 2002

  • De Geronimo, Gianluigi; O’Connor, Paul; Kandasamy, Anand
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 484, Issue 1-3
  • https://doi.org/10.1016/S0168-9002(01)02059-9
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