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Company Information:

Company Name: Saxet Surface Science
City: Austin
State: TX
Zip+4: 78744-1057
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phone: (512) 462-3444

Award Totals:

Program/Phase Award Amount ($) Number of Awards
SBIR Phase I $920,000.00 8
SBIR Phase II $4,500,000.00 6

Award List:

Amorphous NEA Silicon Photocathodes-A Robust RF Gun Electron Source

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency: DOE
Principal Investigator: Gregory A. Mulhollan, Dr.
Award Amount: $100,000.00
Abstract:
In radio frequency (RF) guns with a thermionic cathode, electrons are free to leave the cathode at non-optimal phases of the RF field. These electrons can be accelerated backwards and impact the cathode. Such back-bombardment generates an additional heat load on the gun and cathode, which may… More

Activation Layer Stabilization of High Polarization Photocathodes in Sub-Optimal RF Gun Environments

Award Year / Program / Phase: 2007 / SBIR / Phase I
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr
Award Amount: $100,000.00
Abstract:
The  present design of the International Linear Collider (ILC) calls for the use of a DC gun. If a radio frequency (RF) gun were employed, the pulse profile could be generated by the source laser reducing or eliminating the need for RF bunchers. To enact this scheme, a high electron… More

Amorphous NEA Silicon Photocathodes-A Robust RF Gun Electron Source

Award Year / Program / Phase: 2007 / SBIR / Phase II
Agency: DOE
Principal Investigator: Gregory A. Mulhollan, Dr
Award Amount: $650,000.00
Abstract:
Energy recovery linacs and other CW accelerators mandate the use of radio frequency (RF) photoinjectors to generate the low emittance, high current, high-peak-charge electrons used in collisions with hadron beams, and for electron cooling of hadron beams. However, RF guns using thermionic cathodes… More

Affordable High Yield Photocathodes for FEL Injectors

Award Year / Program / Phase: 2008 / SBIR / Phase I
Agency / Branch: DOD / NAVY
Principal Investigator: Gregory A. Mulhollan, Owner
Award Amount: $70,000.00
Abstract:
For FEL based systems to become practical as weapons, it is necessary photoinjectors be used to generate the low emittance, high current, high peak charge electrons needed for photon production. Higher overall system reliability can be achieved if the photoemitter operates in the visible wavelength… More

Activation Layer Stabilization of High Polarization Photocathodes in Sub-Optimal RF Gun Environments

Award Year / Program / Phase: 2008 / SBIR / Phase II
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr
Award Amount: $650,000.00
Abstract:
It is likely that next generation electron sources for future accelerators will initially utilize a direct current gun based injector with a semiconductor photocathode for electron production. The goal of this project is to create a recipe or series of recipes that will immunize a photocathode… More

Improved Ion Resistance for III-V Photocathodes in High Current Guns

Award Year / Program / Phase: 2009 / SBIR / Phase I
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $100,000.00
Abstract:
A fundamental issue with high-average-current photoelectron guns is the generation of stray electrons and ions which can damage the photoemitter. Ion back-bombardment of the photoemitter can alter or damage both the photoemitter and the activation layer, resulting in diminished lifetime and poor… More

Improved Ion Resistance for III-V Photocathodes in High Current Guns

Award Year / Program / Phase: 2010 / SBIR / Phase II
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $850,000.00
Abstract:
A fundamental issue with high average current photoelectron guns is the generation of stray electrons and ions which can damage the photoemitter. Free electrons can potentially directly impact the photocathode, desorb molecules from the gun structure and act as ionization agents for background

STRAW ??? A Hydrogen-Specific Pressure Gauge for XHV

Award Year / Program / Phase: 2010 / SBIR / Phase I
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $100,000.00
Abstract:
A fundamental issue with high average current photoelectron guns is the generation of stray electrons and ions which can damage the photoemitter. Both the photogenerated electron bunch and any field emitted electrons can potentially directly impact the photocathode, desorb molecules from the gun… More

STRAW - A Hydrogen-Specific Pressure Gauge for XHV

Award Year / Program / Phase: 2011 / SBIR / Phase II
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $950,000.00
Abstract:
A fundamental issue with high average current photoelectron guns is the generation of stray electrons and ions which can damage the photoemitter. Both the photogenerated electron bunch and any field emitted electrons can potentially directly impact the photocathode, desorb molecules from the gun… More

Negative Electron Affinity GaAs as a Thermoelectric Cooler Element

Award Year / Program / Phase: 2011 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: Gregory A. Mulhollan, Owner – (512) 462-3444
Award Amount: $150,000.00
Abstract:
This project will result in investigation and modeling of heat flow in a Bi2Te3-Sb2Te3 superlattice based thermoelectric cooler stack and the development of the series of processes for negative electron affinity activation of the stack substrate as a basis for an advanced sensor cooler in which… More

PERM-PUMP: A Power-Free Hydrogen-Extraction Permeation Pump for XHV

Award Year / Program / Phase: 2013 / SBIR / Phase I
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $150,000.00
Abstract:
Extreme high vacuum (XHV) systems are characterized by very low gas pressure and a small outgassing rate of the system surfaces. Such conditions are essential for longevity of photoemitters in accelerator injectors and particle and hydrocarbon-free environments, in, for example, production of… More

Negative Electron Affinity GaAs as a Thermoelectric Cooler Element

Award Year / Program / Phase: 2013 / SBIR / Phase II
Agency: DOD
Principal Investigator: Gregory A. Mulhollan, Owner – (512) 462-3444
Award Amount: $500,000.00
Abstract:
The goal of this program is to create a prototype thin film superlattice thermoelectric cooler incorporating a parasitic heat leakage path defeating vacuum break via use of a negative electron affinity photoemitter surface as a free electron current source and to demonstrate its operation in a… More

Photocopia-A Unibody MoNo-material Compact and Scalable Photomultiplier

Award Year / Program / Phase: 2014 / SBIR / Phase I
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $150,000.00
Abstract:
Future experiments in nuclear (and particle) physics will require advances in detector technology in order to carry out planned measurements of QCD, electroweak interactions, studies of fundamental symmetries, understanding the spin properties of nucleons, and many other physics topics. Among the… More

PERM-PUMP: A Power-Free Hydrogen-Extraction Permeation Pump for XHV

Award Year / Program / Phase: 2014 / SBIR / Phase II
Agency: DOE
Principal Investigator: Gregory Mulhollan, Dr.
Award Amount: $900,000.00
Abstract:
Extreme high vacuum (XHV) systems are characterized by very low gas pressure and a small outgassing rate of the system surfaces. The pumping techniques required to reach XHV conditions impede further reduction of the XHV pressure by either re-emitting chemically-stored pumped gas or allowing back… More