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A Medipix-Based Small Personal Space Radiation Dosimeter

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Nano EnerTex
4131 Grennoch Houston, TX 77025-2303
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2008
Title: A Medipix-Based Small Personal Space Radiation Dosimeter
Agency: NASA
Contract: NNX08CC23P
Award Amount: $99,947.00


This SBIR effort will take the first step in improving the existing Medipix dosimeter technology in terms of advancing the technique now used to couple the actual sensitive detector material to the underlying readout electronics. Prototypes of current Medipix2-based devices have been developed using "bump-bonding" techniques, and we will improve this design by employing direct epitaxial deposition of the detector layers onto the Medipix2 wafers. This will allow us to deploy very specialized detector structures within the detector layers that can enhance the efficiency and resolution of the device for neutron detection, as well as improving both the charge and energy resolution for charged particles. This includes the application of high hydrogen content polymer coatings to enhance neutron sensitivity. The epitaxial technique will also produce more mechanically robust detectors and potentially avoid one of the significant failure modes for such hardware, namely loss of contact at the bump-bonding sites. Versions of the current bump-bonded prototypes exist that are essentially the size of a typical USB Flash-Memory plug-in device, and like those "USB-Smart-Drives," these prototypes can be fully powered and read-out electronically via standard USB interfaces such as found on most current laptop computers

Principal Investigator:

Ali Zomorrodian
Principal Investigator

Business Contact:

Laura Ignatiev
Business Official
Small Business Information at Submission:

Nano EnerTex
4131 Grennoch Lane Houston, TX 77025

EIN/Tax ID: 204260903
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No