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Novel Photodiode for Use in High Energy Physics

Award Information

Department of Energy
Award ID:
Program Year/Program:
2001 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Constellation Technology
7887 Bryan Dairy Road, Suite 100 Largo, FL 33777-1452
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2001
Title: Novel Photodiode for Use in High Energy Physics
Agency: DOE
Contract: DE-FG02-01ER83168
Award Amount: $99,832.00


65832 In nuclear physics research, room temperature, solid-state detectors can provide excellent energy resolution for gamma-ray spectroscopy in a compact and low power package. However, large volume solid-state detectors continue to suffer from incomplete collection of holes, causing a degradation in energy resolution. Single charge carrier read-out techniques, such as hemispherical detectors, can reduce the effect of hole transport problems in solid state detectors. This project will extend the hemispherical configuration to mercuric iodide detectors. The high density, high atomic number and large band gap of mercuric iodide makes it an excellent detector for room temperature photon spectrometry. Phase I will fabricate a prototype mercuric iodide detector that will approximate a hemispherical structure. Feasibility will be established by a detailed examination of performance parameters through a range of incident photon energies. Commercial Applications And Other Benefits as described by awardee: Improving energy resolution while allowing for larger volume detectors should not only benefit gamma-ray spectroscopy research market, it also should be useful in industrial monitoring, nuclear non-proliferation monitoring activities, and other radiation monitoring markets.

Principal Investigator:

Ray Devito
Director of Detector Technology

Business Contact:

David Oltman
Small Business Information at Submission:

Constellation Technology Corporation
7887 Bryan Dairy Road Suite 100 Largo, FL 33777

EIN/Tax ID: 593582307
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No