Digital spectroscopy systems for high rate events in active interrogation applications

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Publication Type Journal Article
School or College College of Engineering
Department Civil & Environmental Engineering
Creator Yang, Haori
Other Author Wehe, D. K.
Title Digital spectroscopy systems for high rate events in active interrogation applications
Date 2007
Description Abstract- Two digital spectroscopy systems have been developed to handle high rate events in active interrogation applications. In the first system, signal from a PMT is directly digitized by a digitizer and then processed on a PC offline, using deconvolution method. By bypassing the preamplifier, this system can handle extremely high count rate without sacrificing energy resolution very much. To reduce the amount of data needed to be transferred between the DAQ system and the PC, another system is developed based on fast ADC and FPGA. In addition to the merits of the first system, real-time DSP is implemented on the FPGA chip and energy spectrum is generated simultaneously during the measurement. Systems are used in photofission experiments utilizing a 6 MeV pulse mode radiation therapy LINAC and Nuclear Resonance Fluorescence (NRF) experiments utilizing a 3 MeV Van de Graff accelerator. Delayed gamma rays from photofission products are measured in between interrogation pulses. Resonant peaks from NRF reaction are observed in various samples.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
First Page 1757
Last Page 1761
Language eng
Bibliographic Citation Wehe, D. K., & Yang, H. (2007). Digital spectroscopy systems for high rate events in active interrogation applications. IEEE Nuclear Science Symposium, 1757-61.
Rights Management (c) 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 813,659 bytes
Identifier ir-main,15431
ARK ark:/87278/s6pz5szb
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 702942
Reference URL https://collections.lib.utah.edu/ark:/87278/s6pz5szb
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