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Integral Neutron and Gamma Shield Material

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC20C0191
Agency Tracking Number: 193409
Amount: $749,933.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: Z1
Solicitation Number: SBIR_19_P2
Solicitation Year: 2019
Award Year: 2020
Award Start Date (Proposal Award Date): 2020-07-31
Award End Date (Contract End Date): 2022-07-30
Small Business Information
631 Barbrow Lane
Knoxville, TN 37932-3249
United States
DUNS: 964860451
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Drew Spradling
 (865) 966-2170
Business Contact
 Drew Spradling
Phone: (865) 966-2170
Research Institution

A new class of material has been synthesized and demonstrated feasiblenbsp;at the laboratorynbsp;level, as a potentialnbsp;integral neutron and gamma shield for the Kilopower Project and other small fission reactor technologies under development.nbsp; The new material will have a competitive mass and volume-to-shielding effectiveness and offer a superior stable integral form as compared to the current best available technology discrete combinations -nbsp;Lithium Hydride or B4C and Tungsten or Depleted Uranium.nbsp; In the Phase II effort, optimization of the forming method will be completed, with an eye towards manufacturability of large geometry shields.nbsp; Radiation exposure testing of material samples will continue/expand from the Phase I testing that was completed, and be performed at the actual levels of the expected reactor environment.nbsp; Post-irradiation characterization will be performed on the samples for durability assessments.nbsp; Nuclear simulation models will be furthernbsp;optimized from the Phase I level, to guide the design of the shield geometry using the integral material.nbsp; By the end of the Phase II, anbsp;full-scale prototype shield section will be designed, manufactured, and delivered to NASA for hardware integration purposes.nbsp;nbsp;nbsp; nbsp;

* Information listed above is at the time of submission. *

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