A sixteen channel peak sensing ADC for singles spectra in the FERA format
- Lawrence Berkeley Lab., CA (United States). Engineering Div.
To read out multi-element small X-ray detectors for X-ray fluorescence applications with synchrotron radiation one needs the capability to record multiple singles spectra for each detector element at high rates. The authors have developed a sixteen channel 11 bit peak sensing ADC in a CAMAC module. They 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 {micro}sec, the peak acquisition time is {ge}2 {micro}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 nonlinearity is less than +8%/{minus}4%. A {gamma}-ray spectrum collected using this ADC is presented.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 276480
- Report Number(s):
- CONF-951073-; ISSN 0018-9499; TRN: 96:017986
- Journal Information:
- IEEE Transactions on Nuclear Science, Vol. 43, Issue 3Pt2; Conference: IEEE nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 21-28 Oct 1995; Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
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