High-speed nuclear quality pulse height analyzer for synchrotron-based applications

J. F. Bêche, J. J. Bucher, L. Fabris, V. J. Riot, D. K. Shuh

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A high-throughput Pulse Height Analyzer system for synchrotron-based applications requiring high resolution, high processing speed, and low deal-time has been developed. The system is composed of a 120 ns 12-bit nuclear quality analog-to-digital converter with a self-adaptive fast peak detector stretcher and a custom-made fast histogramming memory module that records and processes and digitized data. The histogramming module is packaged in a VME/VXI compatible interface. Data is transferred through a fast optical link from the memory interface to a computer. A dedicated data acquisition program matches the hardware characteristics of the histogramming memory module. The data acquisition system allows for different data collection modes. The system can acquire data in synchronization with an external trigger or operate as a standard pulse-height analyzer. Acquisition can be performed on several channels simultaneously. A two-channel prototype has been demonstrated at the Stanford Synchrotron Radiation Laboratory accelerator in conjunction with a fluorescence X-ray Absorption Fine Structure Spectroscopy experiment. A detailed description of the entire system is given and experimental data shown.

Original languageEnglish
Pages (from-to)1195-1198
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume49 II
Issue number3
DOIs
StatePublished - Jun 2002
Externally publishedYes

Funding

Manuscript received November 4, 2001. This work was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Science Division, U.S. Department of Energy under Contract DE-AC03-76SF00098. The authors are with E. O. Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA (e-mail: [email protected]). Publisher Item Identifier S 0018-9499(02)06109-9.

Keywords

  • Accelerator instrumentation
  • Dead-time
  • High resolution
  • High speed
  • Pulse height analysis

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