A sixteen channel peak sensing ADC for singles spectra in the FERA format

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Description

To read out multi-element small X-ray detectors for X-ray fluorescence application with synchrotron radiation one needs the capability to record multiple singles spectra for each detector element at high rates. We have developed a sixteen channel 11 bit peak sensing ADC in a CAMAC module. We use the FERA readout bus to place the data into a commercially available histogramming module developed to generate multiple histograms from FERA ADCs. The sixteen channels digitize shaped pulses from the detectors without external gating. The digitizing time is 8 {mu}sec, the peak acquisition time is {>=} 2 {mu}sec. The module contains a LiFO ... continued below

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7 p.

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Maier, M.R.; Ludewigt, B.A.; Rossington, C.S.; Yaver, H. & Zaninovich, J.J. October 1, 1995.

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Description

To read out multi-element small X-ray detectors for X-ray fluorescence application with synchrotron radiation one needs the capability to record multiple singles spectra for each detector element at high rates. We have developed a sixteen channel 11 bit peak sensing ADC in a CAMAC module. We use the FERA readout bus to place the data into a commercially available histogramming module developed to generate multiple histograms from FERA ADCs. The sixteen channels digitize shaped pulses from the detectors without external gating. The digitizing time is 8 {mu}sec, the peak acquisition time is {>=} 2 {mu}sec. The module contains a LiFO to permit block transfers in order to minimize dead times associated with the readout. There is a common CAMAC controlled analog threshold for noise suppression and a 16 bit mask to enable or disable individual ADCs. Differential non-linearity is less than +8% / -4%. A {gamma}-ray spectrum collected using this ADC is presented.

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7 p.

Notes

OSTI as DE97000918

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  • IEEE nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 21-28 Oct 1995

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  • Other: DE97000918
  • Report No.: LBL--37124
  • Report No.: CONF-951073--27
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 410176
  • Archival Resource Key: ark:/67531/metadc678697

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 1, 1995

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  • July 25, 2015, 2:20 a.m.

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  • April 5, 2016, 5:08 p.m.

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Maier, M.R.; Ludewigt, B.A.; Rossington, C.S.; Yaver, H. & Zaninovich, J.J. A sixteen channel peak sensing ADC for singles spectra in the FERA format, article, October 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc678697/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.