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Geiger Muller Tube Replacement

Award Information
Agency: Department of Defense
Branch: Defense Threat Reduction Agency
Contract: HDTRA223P0002
Agency Tracking Number: T222-002-0072
Amount: $167,208.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: DTRA222-002
Solicitation Number: 22.2
Solicitation Year: 2022
Award Year: 2023
Award Start Date (Proposal Award Date): 2023-01-25
Award End Date (Contract End Date): 2023-08-24
Small Business Information
15920 Bernardo Center Dr.
San Diego, CA 92127-1111
United States
DUNS: 827054490
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Rhett Barnes
 (619) 987-2803
Business Contact
 James Winso
Phone: (858) 451-0540
Research Institution

Spectral Labs Geiger-Müller Tube Replacement (GMTR) concept will exploit small. low-cost scintillators for a gross gamma counting sensor.  Since GMTR will require less production processing steps compared to GMTs, GMTR devices will be cost competitive to equivalent sensitivity compensated GMTs in full scale production.  The small crystal sizes projected will result in partial deposition of photon energy in the crystal requiring external means to compensate for low energy gamma.   A Phase I objective will be to establish these external compensation parameters to ensure dose rate linearity across a broad range of gamma photon energies by numerical modeling followed by building and testing of prototypes. A major element of the Phase I effort will be to provide numerical modeling to provide validation of the planned approach.  The MCNP Monte Carlo code to be used cannot handle optical photons directly, so external processing is planned to capture the entire physical activity, radiological and photonic, involved in the detection processes planned.  This modeling will be conducted in parallel to acquisition of required material to fabricate and test the engineering models. SLI is projecting that the size, weight, and power requirements of the GMTR will be considerably less than for comparable sensitivity GMTs.

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

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