Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer

Warburton, William K; Hubbard, Bradley

Title: Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer

Abstract

A signal processing system which accepts input from an x-ray detector-preamplifier and produces a signal of reduced dynamic range for subsequent analog-to-digital conversion. The system conditions the input signal to reduce the number of bits required in the analog-to-digital converter by removing that part of the input signal which varies only slowly in time and retaining the amplitude of the pulses which carry information about the x-rays absorbed by the detector. The parameters controlling the signal conditioner's operation can be readily supplied in digital form, allowing it to be integrated into a feedback loop as part of a larger digital x-ray spectroscopy system.

Inventors:

Warburton, William K ^[1]; Hubbard, Bradley ^[2]

1300 Mills St., Menlo Park, CA 94025
Santa Cruz, CA

Issue Date:: 1999-01-01

Research Org.:: X-RAY INSTRUMENTATION ASSOC

OSTI Identifier:: 872144

Patent Number(s):: 5870051

Assignee:: Warburton, William K. (Mountain View, CA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03M - CODING

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G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G01T1/171 - {Compensation of dead-time counting losses

H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03M - CODING
H03M1/1295 - {Clamping, i.e. adjusting the DC level of the input signal to a predetermined value}

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DOE Contract Number:: FG03-92ER81311

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; apparatus; analog; signal; conditioner; speed; digital; x-ray; spectrometer; processing; accepts; input; detector-preamplifier; produces; reduced; dynamic; range; subsequent; analog-to-digital; conversion; conditions; reduce; bits; required; converter; removing; varies; slowly; time; retaining; amplitude; pulses; carry; information; x-rays; absorbed; detector; parameters; controlling; operation; readily; supplied; form; allowing; integrated; feedback; loop; larger; spectroscopy; x-ray spectrometer; analog-to-digital converter; x-ray detector; feedback loop; dynamic range; signal processing; input signal; analog signal; reduced dynamic; digital form; accepts input; signal process; ray detector; digital converter; digital x-ray; ray spectroscopy; /341/

Citation Formats


                    Warburton, William K, and Hubbard, Bradley. Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer.  United States: N. p., 1999. 
        Web.

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                    Warburton, William K, & Hubbard, Bradley. Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer.  United States.

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                    Warburton, William K, and Hubbard, Bradley. Fri .  
        "Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer".  United States.  https://www.osti.gov/servlets/purl/872144.

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@article{osti_872144,

  title        = {Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer},

  author       = {Warburton, William K and Hubbard, Bradley},

  abstractNote = {A signal processing system which accepts input from an x-ray detector-preamplifier and produces a signal of reduced dynamic range for subsequent analog-to-digital conversion. The system conditions the input signal to reduce the number of bits required in the analog-to-digital converter by removing that part of the input signal which varies only slowly in time and retaining the amplitude of the pulses which carry information about the x-rays absorbed by the detector. The parameters controlling the signal conditioner's operation can be readily supplied in digital form, allowing it to be integrated into a feedback loop as part of a larger digital x-ray spectroscopy system.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1999},

  month        = {1}

}

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Works referenced in this record:

An analog-to-digital conversion based on a moving window deconvolution
journal, January 1994

Georgiev, A.; Gast, W.; Lieder, R. M.
IEEE Transactions on Nuclear Science, Vol. 41, Issue 4
https://doi.org/10.1109/23.322868

Digital pulse-shape analyzer based on fast sampling of an integrated charge pulse
journal, January 1995

Jordanov, V. T.; Knoll, G. F.
IEEE Transactions on Nuclear Science, Vol. 42, Issue 4
https://doi.org/10.1109/23.467893

Digital techniques for real-time pulse shaping in radiation measurements
journal, December 1994

Jordanov, Valentin T.; Knoll, Glenn F.; Huber, Alan C.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 353, Issue 1-3
https://doi.org/10.1016/0168-9002(94)91652-7

A new pulse height analysis system based on fast ADC digitizing technique
journal, August 1993

Takahashi, H.; Kodama, S.; Kawarabayashi, J.
IEEE Transactions on Nuclear Science, Vol. 40, Issue 4
https://doi.org/10.1109/23.256629

X‐ray signal processing electronics for solid state detectors
journal, February 1995

Farrow, R.; Derbyshire, G. E.; Dobson, B. R.
Review of Scientific Instruments, Vol. 66, Issue 2
https://doi.org/10.1063/1.1145672

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Title: Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer

Abstract

Citation Formats

An analog-to-digital conversion based on a moving window deconvolution journal, January 1994

Digital pulse-shape analyzer based on fast sampling of an integrated charge pulse journal, January 1995

Digital techniques for real-time pulse shaping in radiation measurements journal, December 1994

A new pulse height analysis system based on fast ADC digitizing technique journal, August 1993

X‐ray signal processing electronics for solid state detectors journal, February 1995

An analog-to-digital conversion based on a moving window deconvolution
journal, January 1994

Digital pulse-shape analyzer based on fast sampling of an integrated charge pulse
journal, January 1995

Digital techniques for real-time pulse shaping in radiation measurements
journal, December 1994

A new pulse height analysis system based on fast ADC digitizing technique
journal, August 1993

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journal, February 1995