Empirical dead-time corrections for energy-resolving detectors at synchrotron sources
نویسندگان
چکیده
We examine the high count-rate performance of an energy-resolving detector in the three operating modes of the Advanced Photon Source (APS). Specifically, we present the optimal dead-time corrections for the SII Vortex silicon drift diode (SDD) detector using a digital pulse processor, highlighting the differences in operation between the 24-bunch, 324-bunch, and hybrid singlet modes of the APS. We analyze the input count rate (ICR), output count rate (OCR), and several regions of interest (ROIs).We find that the correct formula for dead-time correction can extend the use of the detector to significantly higher count rates. & 2010 Elsevier B.V. All rights reserved.
منابع مشابه
Empirical dead-time corrections for synchrotron sources.
An experimental comparison of models for performing dead-time corrections of photon-counting detectors at synchrotron sources is presented. The performance of several detectors in the three operating modes of the Advanced Photon Source is systematically compared, with particular emphasis on asymmetric fill patterns. Several simple and well known correction formulas are evaluated. The results de...
متن کاملHigh-rate dead-time corrections in a general purpose digital pulse processing system
Dead-time losses are well recognized and studied drawbacks in counting and spectroscopic systems. In this work the abilities on dead-time correction of a real-time digital pulse processing (DPP) system for high-rate high-resolution radiation measurements are presented. The DPP system, through a fast and slow analysis of the output waveform from radiation detectors, is able to perform multi-para...
متن کاملBunch mode specific rate corrections for PILATUS3 detectors
PILATUS X-ray detectors are in operation at many synchrotron beamlines around the world. This article reports on the characterization of the new PILATUS3 detector generation at high count rates. As for all counting detectors, the measured intensities have to be corrected for the dead-time of the counting mechanism at high photon fluxes. The large number of different bunch modes at these synchro...
متن کاملDetermination of virtual point for HPGe detector at various gamma rays energies by simulation and experimental methods
High Purity Germanium detectors (HPGe) are subdivisions of semiconductor detectors which are widely used in nuclear technology from space industry to nuclear medicine, due to their high resolution, low dead time, unlimited size and compatibility with a variety of environments. The( absolute and intrinsic) efficiency of the HPGe detector, which depends on the geometry of the source-detector syst...
متن کاملSuccess and failure of dead-time models as applied to hybrid pixel detectors in high-flux applications
The performance of a single-photon-counting hybrid pixel detector has been investigated at the Australian Synchrotron. Results are compared with the body of accepted analytical models previously validated with other detectors. Detector functionals are valuable for empirical calibration. It is shown that the matching of the detector dead-time with the temporal synchrotron source structure leads ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011