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Company Information:

Company Name: Phds Co.
City: Knoxville
State: TN
Zip+4: 37921-3713
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Website URL: N/A
Phone: (865) 481-3725

Award Totals:

Program/Phase Award Amount ($) Number of Awards
SBIR Phase I $1,399,680.00 13
SBIR Phase II $6,748,833.00 8

Award List:

Development of Reliable, Segmented Germanium Planar Detector Systems for Nuclear Physics

Award Year / Program / Phase: 2003 / SBIR / Phase I
Agency: DOE
Principal Investigator: Richard Pehl
Award Amount: $99,922.00
Abstract:
72564S03-I The nuclear physics research supported by DOE has a fundamental need for instruments that detect photons (x- and gamma rays). Segmented germanium detectors can provide better position and energy resolution than any other practical detector system. Although no fundamental technical… More

Development of Reliable Segmented Germanium Planar Detector Systems for Nuclear Physics

Award Year / Program / Phase: 2004 / SBIR / Phase II
Agency: DOE
Principal Investigator: Richard H. Pehl, Dr.
Award Amount: $749,947.00
Abstract:
72564-The nuclear physics research supported by DOE has a fundamental need for instruments that detect photons (x- and gamma rays). Segmented germanium detectors can provide better position and energy resolution than any other practical detector system. Although no fundamental technical roadblocks… More

Spectroscopic Imaging Gamma and Neutron Emission Tracker SIGNET

Award Year / Program / Phase: 2005 / SBIR / Phase I
Agency: DHS
Principal Investigator: Ethan Hull, Detector Physicist and Partner – (925) 245-9502
Award Amount: $100,000.00
Abstract:
Gamma ray and neutron emitting isotopes can be located and identified with the use of a directional gamma ray and neutron detection system having excellent spectroscopic energy resolution. Segmented germanium gamma-ray detectors are the best detectors for such a system. Recent evolutions in… More

Segmentation of the Outer Contact on P-Type Coaxial Germanium Detectors

Award Year / Program / Phase: 2005 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan L. Hull, Dr.
Award Amount: $99,840.00
Abstract:
78248S Segmented germanium detector arrays are needed by the DOE for the characterization of low-level radioactive samples. In addition, the same detector arrays could perform important fundamental physics measurements, including the search for rare-events like neutrinoless double-beta decay. … More

Segmentation of the Outer Contact on P-Type Coaxial Germanium Detectors

Award Year / Program / Phase: 2006 / SBIR / Phase II
Agency: DOE
Principal Investigator: Ethan L. Hull, Dr.
Award Amount: $749,000.00
Abstract:
Segmented germanium detector arrays are needed by the DOE for the characterization of low-level radioactive samples. In addition, the same detector arrays could perform important fundamental physics measurements, including the search for rare-events like neutrinoless double-beta decay. However,… More

Improving the Radiation Damage Resistance of Germanium Detectors

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan L. Hull, Dr.
Award Amount: $99,999.00
Abstract:
Arrays of germanium gamma-ray detectors are used for nuclear physics experiments at DOE particle accelerator facilities. Energetic massive particles from the accelerator degrade the performance of the detectors and ultimately limit their use. This problem pertains to the currently-existing… More

Segmented Monolithic Germanium Detector Arrays for X-Ray Absorption Spectroscopy

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan L. Hull, Dr.
Award Amount: $99,999.00
Abstract:
The DOE operates several synchrotron x-ray-absorbtion-spectroscopy facilities for the study of dilute samples of chemical, biological, condensed matter, and environmental interest. These facilites require advanced semiconductor detectors. This project will develop detector arrays for x-ray… More

Position-sensitive identification and tracking system for neutron-induced detection and location of explosives at large distances POSITRACK

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency / Branch: DOD / USAF
Principal Investigator: Ethan Hull, Detector Physicist and Partner
Award Amount: $99,981.00
Abstract:
We propose a method of detecting high explosives from large distances using neutron induced gamma-ray detection and imaging. The gamma rays will be detected and imaged using an advanced position-sensitive germanium detector system. The superb position and energy resolution of the detector system… More

Segmented Germanium Detectors for High Resolution Gamma-Ray Imaging

Award Year / Program / Phase: 2007 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan Hull, Dr
Award Amount: $100,000.00
Abstract:
The DOE Medical Sciences program supports advanced instrumentation for radionuclide imaging, which can serve as the basis for improved SPECT imaging systems. Therefore, this project will develop and evaluate improved detectors for planar radionuclide imaging. Phase I will demonstrate enhanced,… More

Improving the Radiation Damage Resistance of Germanium Detectors

Award Year / Program / Phase: 2007 / SBIR / Phase II
Agency: DOE
Principal Investigator: Ethan L. Hull, Dr
Award Amount: $750,000.00
Abstract:
Ever larger gamma ray detector arrays made from germanium crystals are being used, and will continue to be used, in nuclear physics research. However, radiation damage limits the time that a germanium detector can be used; for example, an average Gammasphere detector may function in an array for… More

Position-sensitive identification and tracking system for neutron-induced detection and location of explosives at large distances POSITRACK

Award Year / Program / Phase: 2007 / SBIR / Phase II
Agency / Branch: DOD / USAF
Principal Investigator: Ethan Hull, President and CEO
Award Amount: $749,886.00
Abstract:
This effort will develop technology to improve the detection and location high explosives at large distances. The system will involve the use of an advanced gamma-ray detector and a neutron source. The detector concept will be developed into two prototype systems that will serve to demonstrate the… More

Growth of Large Diameter High-Purity Germanium Crystals for Nuclear Physics Research

Award Year / Program / Phase: 2008 / SBIR / Phase I
Agency: DOE
Principal Investigator: Richard Pehl, Dr.
Award Amount: $99,972.00
Abstract:
Large diameter germanium crystals are needed to provide larger, more sensitive, gamma-ray detectors for nuclear physics measurements at DOE user facilities. In this project, germanium crystal growth techniques will be experimentally developed for the growth of large diameter crystals. Phase I will… More

High-Purity Germanium Crystals for Low Background Counting Arrays

Award Year / Program / Phase: 2008 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan Hull, Mr.
Award Amount: $99,967.00
Abstract:
Efficiently grown germanium crystals and detectors are needed for DOE¿s low-background user facilities. These detectors are at the forefront of physics in the search for rare processes, such as neutrinoless double-beta decay, and also are used for low level counting facilities to characterize… More

Segmented Rectifying and Blocking Contacts on Germanium Planar Detectors

Award Year / Program / Phase: 2009 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan Hull, Dr.
Award Amount: $100,000.00
Abstract:
The semiconductor electrodes on segmented germanium planar detectors used in nuclear physics research require improvement, so that significantly more of the available high-purity germanium can be utilized for the detection function. This project will develop new semiconductor electrode technology… More

High-Purity Germanium Crystals for Low Background Counting Arrays

Award Year / Program / Phase: 2009 / SBIR / Phase II
Agency: DOE
Principal Investigator: Ethan Hull, Mr.
Award Amount: $750,000.00
Abstract:
The next generation of DOE low-background user facilities will require suitable germanium crystal production capabilities. These crystal-growth techniques must accommodate the handling of highly enriched germanium in a manner consistent with low background counting. In this project, germanium… More

Segmented Rectifying and Blocking Contacts on Germanium Planar Detectors

Award Year / Program / Phase: 2010 / SBIR / Phase II
Agency: DOE
Principal Investigator: Ethan Hull, Dr.
Award Amount: $1,000,000.00
Abstract:
The semiconductor contacts on segmented germanium planar detectors require improvement to commercially supply better detectors at lower cost with faster delivery. In addition, this improvement will result in the utilization of significantly more high-purity germanium crystals for detector… More

Growth of Large Diameter High-Purity Germanium Crystals for Nuclear Physics Research

Award Year / Program / Phase: 2010 / SBIR / Phase I
Agency: DOE
Principal Investigator: Richard Pehl, Dr.
Award Amount: $100,000.00
Abstract:
The existence of larger diameter germanium crystals will provide larger, more sensitive, gamma-ray detectors for Nuclear Physics measurements at DOE user facilities. Large Diameter germanium crystal growth techniques will be experimentally developed during the Phase I and Phase II. Large diameter… More

Thin-Window P-Type Point-Contact Germanium Detectors for Rare Particle Detection

Award Year / Program / Phase: 2011 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan Hull, Dr. – 865-481-3725
Award Amount: $150,000.00
Abstract:
Difficulties associated with thick lithium-diffused entrance windows on the outside of p-type coaxial and point-contact germanium gamma-ray detectors have always been a technical hindrance. The lithium dead layer limits the low-energy detection range and adds background in the energy spectrum,… More

Growth of Large Diameter High-Purity Germanium Crystals for Nuclear Physics Research

Award Year / Program / Phase: 2011 / SBIR / Phase II
Agency: DOE
Principal Investigator: Richard Pehl, Dr.
Award Amount: $1,000,000.00
Abstract:
DOE Nuclear Physics user facilities require larger high-resolution gamma-ray detector systems to provide higher sensitivity measurements. Large diameter germanium crystals are being grown, evaluated, and iteratively improved in the laboratory. Large-diameter crystals will be made into large… More

Thin-Window P-Type Point-Contact Germanium Detectors for Rare Particle Detection 45c

Award Year / Program / Phase: 2012 / SBIR / Phase II
Agency: DOE
Principal Investigator: Ethan Hull, Dr. – 865-481-3725
Award Amount: $1,000,000.00
Abstract:
DOE Nuclear Physics low-background rare-particle detection arrays require germanium detectors having the minimum possible background and maximum sensitivity. Larger p-type point-contact germanium detectors having better performance are being experimentally developed through collaboration with DOE… More

Modular Planar Germanium Detector Systems for High Resolution Gamma-ray Spectroscopy and Tracking Arrays

Award Year / Program / Phase: 2013 / SBIR / Phase I
Agency: DOE
Principal Investigator: Ethan Hull, Dr.
Award Amount: $150,000.00
Abstract:
The Department of Energy (DOE) Office of Nuclear Physics maintains gamma-ray detector arrays as user facilities. The Modular Planar Germanium (MPGe) detector systems to be developed here will provide a lower cost, higher resolution, basis for such detector arrays. The MPGe detector systems will be… More