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Title: A MULTI-LAYER PHOSWICH RADIOXENON DETECTION SYSTEM, REPORTING PERIOD 11/01/06 - 01/31/07

Abstract

During the third quarter of our research we continued development of our two-channel digital pulse processor, and finalized/optimized our XEPHWICH design. We have completed a number of simulations (using MCNP) on potential design features of a two-channel phoswich detector, and have come to agreement on the most efficient design for the ARSA framework. This design will encompass two planar, triple-layer phoswich detectors positioned parallel to each other such that the gas-counting volume is a very thin disk. This approach creates a counting geometry that is very close to 4{pi}, while simplifying the manufacturing process. For the DPP2, a two-channel fast preamplifier is being designed. The preamplifier will have DC-offset and gain adjustments. As described in the proposal, valid signal pulses from two PMTs are identified and captured in the FPGA and then digitally processed in a dedicated Digital Signal Processor (DSP). The MicroBlaze processor from Xilinx is intended to be replaced with the DSP. The processor is a soft core, meaning that it is implemented using general logic primitives rather than a hard core such as DSP.

Authors:
Publication Date:
Research Org.:
Oregon State Univ., Corvallis, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
898997
Report Number(s):
Y1Q3 Progress Report
TRN: US0702890
DOE Contract Number:  
FC52-06NA27322
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DESIGN; RADIATION DETECTORS; XENON ISOTOPES; RADIATION DETECTION; MANUFACTURING; PREAMPLIFIERS

Citation Formats

David M. Hamby, P.I. A MULTI-LAYER PHOSWICH RADIOXENON DETECTION SYSTEM, REPORTING PERIOD 11/01/06 - 01/31/07. United States: N. p., 2007. Web. doi:10.2172/898997.
David M. Hamby, P.I. A MULTI-LAYER PHOSWICH RADIOXENON DETECTION SYSTEM, REPORTING PERIOD 11/01/06 - 01/31/07. United States. doi:10.2172/898997.
David M. Hamby, P.I. Wed . "A MULTI-LAYER PHOSWICH RADIOXENON DETECTION SYSTEM, REPORTING PERIOD 11/01/06 - 01/31/07". United States. doi:10.2172/898997. https://www.osti.gov/servlets/purl/898997.
@article{osti_898997,
title = {A MULTI-LAYER PHOSWICH RADIOXENON DETECTION SYSTEM, REPORTING PERIOD 11/01/06 - 01/31/07},
author = {David M. Hamby, P.I.},
abstractNote = {During the third quarter of our research we continued development of our two-channel digital pulse processor, and finalized/optimized our XEPHWICH design. We have completed a number of simulations (using MCNP) on potential design features of a two-channel phoswich detector, and have come to agreement on the most efficient design for the ARSA framework. This design will encompass two planar, triple-layer phoswich detectors positioned parallel to each other such that the gas-counting volume is a very thin disk. This approach creates a counting geometry that is very close to 4{pi}, while simplifying the manufacturing process. For the DPP2, a two-channel fast preamplifier is being designed. The preamplifier will have DC-offset and gain adjustments. As described in the proposal, valid signal pulses from two PMTs are identified and captured in the FPGA and then digitally processed in a dedicated Digital Signal Processor (DSP). The MicroBlaze processor from Xilinx is intended to be replaced with the DSP. The processor is a soft core, meaning that it is implemented using general logic primitives rather than a hard core such as DSP.},
doi = {10.2172/898997},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 31 00:00:00 EST 2007},
month = {Wed Jan 31 00:00:00 EST 2007}
}

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