A sixteen channel peak sensing ADC for singles spectra in the FERA format
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.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 410176
- Report Number(s):
- LBL-37124; CONF-951073-27; ON: DE97000918
- Resource Relation:
- Conference: IEEE nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 21-28 Oct 1995; Other Information: PBD: Oct 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Adaptive Readout Technique For A Sixteen Channel Peak Sensing ADC In the FERA Format
Adaptive readout technique for a sixteen channel peak sensing ADC in the FERA format