Development of a Compact Multi-Analyzer System for Triple Axis Spectoscopy

Award Information
Agency:
Department of Energy
Branch:
N/A
Amount:
$100,000.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-08ER84996
Agency Tracking Number:
85728
Solicitation Year:
2008
Solicitation Topic Code:
01 a
Solicitation Number:
DE-PS02-07ER07-36
Small Business Information
Pecos Inc. Precision Engineering Contracting Servi
1020 Commerce Park, Suite K, Oak Ridge, TN, 37830
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
019642680
Principal Investigator
 David Prieto
 Dr.
 (865) 773-8154
 info@pecosinc.com
Business Contact
 David Prieto
Title: Dr.
Phone: (865) 773-8154
Email: info@pecosinc.com
Research Institution
N/A
Abstract
Thermal neutron scattering is an extremely powerful technique for investigating the structure and properties of materials at the atomic level. By using inelastic neutron scattering, the fundamental excitation spectra within the material can be measured. However the cross sections for inelastic neutron scattering are extremely small, and, consequently, intense neutron sources are required for such measurements. This project will develop a Compact Multi-Analyzer System (CMAS) that has the potential to increase the effective count rate in such inelastic measurements by a factor of up to 16 times. The CMAS can be retro-fitted to existing Triple Axis Spectrometers, used at reactor neutron sources to carry out these measurements, to provide a highly cost-effective way of increasing the count rate. The compact nature of the CMAS is afforded by the innovative use of recently developed ¿solid state collimators,¿ which are based on the use of high transmission single crystal silicon wafers coated with layers of gadolinium (highly neutron absorbing) and Ni/Ti supermirror (highly neutron reflecting). Commercial Applications and other Benefits as described by the awardee: Phase I will demonstrate that the analyzer crystals in the compact multi-analyzer design can be accurately and reproducibly positioned and that it is feasible to construct a fanned array of solid state collimators.

* information listed above is at the time of submission.

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