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Radiation Tolerant Temperature-Invariant Scintillation Modules

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX17CM05C
Agency Tracking Number: 155901
Amount: $749,997.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: S1.06
Solicitation Number: N/A
Solicitation Year: 2016
Award Year: 2017
Award Start Date (Proposal Award Date): 2017-04-12
Award End Date (Contract End Date): 2019-04-11
Small Business Information
44 Hunt Street
Watertown, MA 02472-4699
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Erik Johnson
 Principal Investigator
 (617) 668-6886
Business Contact
 Mary Abud
Title: Business Official
Phone: (617) 668-6809
Research Institution

Radiation detectors are an invaluable tool for space applications spanning planetary science, astrophysics, heliophysics, space weather, and dosimetry for human exploration. Scintillators are materials that generate a light flash with an intensity that is proportional to the ionizing energy deposited. However, scintillator efficiency gradually decays with increased exposure to radiation. For exploration missions to hostile environments, such as those around Jupiter, Venus or Mercury, large ionizing doses are expected for the scintillation material, rendering them useless. A common practice to mitigate dose effects is to anneal the scintillation materials. In addition, sensitivity, dictated by detector volume, is critical for science missions, such mapping H2O concentration over a planetary surface. This project will develop a scintillator module using advanced materials, such as Cs2LiYCl6(CLYC), LiSr2I5 (LSI), or Tl2LiYCl6 (TLYC), that provide both high-performance gamma ray and neutron spectroscopy within a single volume. Si photomultipliers (SiPM) will maximize the active volume relative to the total volume. The project will result in a large-volume, high-performance detector module, rigorously tested for flight, with protocols for annealing and science operation

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

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