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Non-saturating, high-sensitivity military pocket dosimeter

Award Information
Agency: Department of Defense
Branch: Defense Threat Reduction Agency
Contract: HDTRA118P0002
Agency Tracking Number: T172-007-0028
Amount: $149,966.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: DTRA172-007
Solicitation Number: 2017.2
Solicitation Year: 2017
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-02-01
Award End Date (Contract End Date): 2018-09-01
Small Business Information
12233 Robin Blvd
Houston, TX 77045
United States
DUNS: 806763793
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jeffrey Lacy
 (713) 747-7324
Business Contact
 Jeffrey Lacy
Phone: (713) 747-7324
Research Institution

During this Phase I effort, Proportional Technologies, Inc. will develop non-saturating components for a military battlefield dosimeter based on ionization chamber technology, which will ultimately be combined with low-dose sensors in Phase II for a final product that is both highly sensitive, accurate, and non-saturating in the event of a nuclear blast or other high-dose scenario. The proposed high-dose components will be thimble-shaped ionization chambers, with one component made of conductive A150 plastic doped with boron, sensitive to both high-energy and low-energy neutrons. A second component will be constructed from graphite and sensitive to gammas only, allowing for the subtraction of the gamma signal from the neutron channel so that the gamma and neutron signals can be accurately measured independently. Additional designs will be devised which will enable threshold activation detection of fast neutrons for extended-time measurement of the fast neutron component in the event of electronic disruption. When design and manufacture of the Phase I high-dose detectors are complete, the high-dose sensors will be tested in a controlled criticality experiment at a government facility.

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

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