Thomas Kroc
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View article: Continued conditioning of the Fermilab 400-MeV linac high gradient side couple cavities
Continued conditioning of the Fermilab 400-MeV linac high gradient side couple cavities Open
The high energy portion of the Fermilab 400 MeV Linac is made of high gradient (37 MV/meter surface field) side-coupled cavity section which were conditioned over a 10 month period before their installation in August of 1993. We have conti…
View article: Highlighting the Utilization of the Compact Superconducting Accelerator to Maximize the Potential for X-Ray as an Alternative Modality
Highlighting the Utilization of the Compact Superconducting Accelerator to Maximize the Potential for X-Ray as an Alternative Modality Open
Alpha He2+ Very Shallow • Beta Electrons Penetration depends on energy 10 MeV, 5 cm in H 2 0 • (Photons) Gamma X-ray 10s of cm in H 2 0 (UV light) lr: oletl I ..
View article: High-Power X-Ray Prototype Source Development using Superconducting Accelerator for Radiological (Co-60) Source Replacement
High-Power X-Ray Prototype Source Development using Superconducting Accelerator for Radiological (Co-60) Source Replacement Open
One minute overview of Poster to be presented at the DOE/NNSA unclassified Nuclear Security Applications Research and Development (NSARD) Program Review
View article: Bridging the Gap with R&D to Ensure a Proactive Approach to Optimized Sterilization
Bridging the Gap with R&D to Ensure a Proactive Approach to Optimized Sterilization Open
Education -alternatives
View article: What Tech Will Help Resolve the Growing Sterilization Crisis?
What Tech Will Help Resolve the Growing Sterilization Crisis? Open
The medical device is in dire need of a long-term solution for the sterilization crisis. In this panel we'll hear from experts who are bringing new approaches to the challenge of making medical devices safe.
View article: Supported X-ray horn for controlling e-beams
Supported X-ray horn for controlling e-beams Open
A magnetic apparatus and a method of operating the magnetic apparatus can include a scanning electromagnet that redirects a beam of charged particles, a vacuum chamber that prevents the atmosphere from interfering with the charged particle…
View article: Inspection system of wellbores and surrounding rock using penetrating X-rays
Inspection system of wellbores and surrounding rock using penetrating X-rays Open
A system, method, and apparatus for wellbore inspection comprise an electron accelerator to generate X-rays, a rotating collimator assembly configured to produce a cone of X-rays, and at least one detector assembly configured to collect ba…
View article: Radiation effects model for Ultra-Thin Silicon Solar Cells
Radiation effects model for Ultra-Thin Silicon Solar Cells Open
This work is focused on investigation of radiation effects in Ultra-Thin Silicon solar cells with a particular emphasis on electron irradiation. The study is motivated by the application of these solar cells, developed by Solestial, Inc., …
View article: Permanent Magnet E-beam/X-ray Horn
Permanent Magnet E-beam/X-ray Horn Open
A magnetic apparatus and a method of operating the magnetic apparatus can include a scanning electromagnet that redirects a beam of charged particles, a vacuum chamber that prevents the atmosphere from interfering with the charged particle…
View article: Cryogenics design of a compact, cryocooler conduction-cooled SRF accelerator for e-beam production
Cryogenics design of a compact, cryocooler conduction-cooled SRF accelerator for e-beam production Open
we project that the niobium cavity when coated with Nb3Sn and operated on the same experimental setup can produce >10 MV/m cw accelerating gradients.
View article: High efficiency, low cost, RF sources for accelerators and colliders
High efficiency, low cost, RF sources for accelerators and colliders Open
Accelerators for High Energy Physics (HEP) are large users of energy, much of it in the form of radiofrequency (RF) power to accelerate particles to very high energies. Proposed HEP projects will require even larger amounts of RF energy. I…
View article: High Power 650 MHz Magnetron RF Power Source
High Power 650 MHz Magnetron RF Power Source Open
with the high average power and then tested to an effective forward power level of 10 MW by testing at 2.5 MW forward power into a short and varying the phase of the standing wave. The sliding short was moved from 0 to 180 degrees to ensur…
View article: GAMMA, E-BEAM & X-RAY RADIATION STERILIZATION EQUIVALENCY: RESULTS OF THE MONTE CARLO SIMULATIONS
GAMMA, E-BEAM & X-RAY RADIATION STERILIZATION EQUIVALENCY: RESULTS OF THE MONTE CARLO SIMULATIONS Open
sterilization dose. No difference in energy spectra was seen between the three types of initial radiation. It is concluded that there is no energy dependent difference between gamma, e-beam, and x-ray for radiation sterilization.
View article: High-energy X-ray source and detector for wellbore inspection
High-energy X-ray source and detector for wellbore inspection Open
A system, method, and apparatus for wellbore inspection comprise an electron accelerator to generate X-rays, a rotating collimator assembly configured to produce a cone of X-rays, and at least one detector assembly configured to collect ba…
View article: Alternative Technologies for Medical Device Sterilization using Radiation [Slides]
Alternative Technologies for Medical Device Sterilization using Radiation [Slides] Open
In addition, we will present a review of developments within the medical device sterilization industry that are motivating the development of this technology.
View article: High Power 650 MHz Magnetron RF Power Source [Slides]
High Power 650 MHz Magnetron RF Power Source [Slides] Open
adjustable 360{sup o} mechanical phase shifter in series with the fast-ferrite tuner. A bipolar DC bias supply, controlled by a low-level rf cavity tuning loop consisting of an rf phase detector and a PID amplifier, is used to provide a va…
View article: Wall plug efficiency analysis of a compact SRF industrial accelerator [Poster]
Wall plug efficiency analysis of a compact SRF industrial accelerator [Poster] Open
Superconducting radiofrequency cavities offer extremely high (>90%) RF-to-beam energy conversion efficiency. Recent breakthroughs in the Nb3Sn SRF cavity technology, successful demonstration of the conduction cooling technique, and the ava…
View article: Wall plug efficiency analysis of a compact SRF industrial accelerator [Poster]
Wall plug efficiency analysis of a compact SRF industrial accelerator [Poster] Open
Superconducting radiofrequency cavities offer extremely high (>90%) RF-to-beam energy conversion efficiency. Recent breakthroughs in the Nb3Sn SRF cavity technology, successful demonstration of the conduction cooling technique, and the ava…
View article: Comparing and Contrasting Existing Sterilization Methods to Determine Which Modality is Most Appropriate [Slides]
Comparing and Contrasting Existing Sterilization Methods to Determine Which Modality is Most Appropriate [Slides] Open
model the reliabilities of all network components that are used to predict the most likely pathways to the target.
View article: Efficiency – The Second Most Important Parameter in Industrial Applications [Slides]
Efficiency – The Second Most Important Parameter in Industrial Applications [Slides] Open
hydrogen production. The three technical reports are summarized as follows: Renewable Thermal Energy Systems: Characterization of the Most Important Thermal Energy Applications in Buildings and Industry (Report 1), this report: summary of …
View article: The Need for Further Development of Magnetrons as RF Sources for HEP
The Need for Further Development of Magnetrons as RF Sources for HEP Open
Proposal to develop magnetrons as RF sources for HEP