SPECIAL NOTICE
A -- TECHNOLOGY/BUSINESS OPPORTUNITY High Resolution Profiling of High Power Electron Beams - Schematic
- Notice Date
- 10/4/2018
- Notice Type
- Special Notice
- NAICS
- 238990
— All Other Specialty Trade Contractors
- Contracting Office
- Department of Energy, Lawrence Livermore National Laboratory (DOE Contractor), Industrial Partnerships & Commercialization, 7000 East Avenue, L-795, Livermore, California, 94550
- ZIP Code
- 94550
- Solicitation Number
- FBO382-18
- Archive Date
- 11/6/2018
- Point of Contact
- Connie L Pitcock, Phone: 925-422-1072
- E-Mail Address
-
pitcock1@llnl.gov
(pitcock1@llnl.gov)
- Small Business Set-Aside
- N/A
- Description
- Schematic of Electron Beam Controller and Data Acquisition System Opportunity : Lawrence Livermore National Laboratory (LLNL), operated by the Lawrence Livermore National Security (LLNS), LLC under contract no. DE-AC52-07NA27344 (Contract 44) with the U.S. Department of Energy (DOE), seeks licensees for a new high-resolution electron beam profiling technology. Building on earlier work intended for low power electron beam diagnostics, LLNL’s has developed new technology consisting of patented annular and concentric slit diagnostic hardware, combined with computed tomography, to offer rapid and high-resolution profiles of electron beams and an avenue to such precision and accuracy for high power electron beams. This technology offers an accurate diagnostic system to measure beam properties for improved process and quality control for electron beam welding and additive manufacturing. Background : Electron beams are considered to be the most precise and clean method available for welding thick sections and high value materials and are now finding new applications in additive manufacturing. Providing a method to measure the power density distribution of high power electron beams is essential for these applications. Without the ability to reliably focus and reproduce the power distribution in an electron beam, weld quality cannot be guaranteed. This problem is exacerbated by the fact the many welds are made over a period of time and with different welding operators. Further complications arise when welds are developed on one machine than transferred to a different machine for production. Methods for improving the quality of electron beam diagnostic information are required in the areas of providing higher resolution information about the profiled beam, and the ability to analyze higher power beams at high resolution. Description : LLNL pioneered the use of tomographic reconstruction to determine the power density of electron beams using profiles of the beam taken at a number of angles. LLNL’s earlier diagnostic required the beam to be circled over them at a fixed known diameter to collect data. The new sensor design removes limitations on the number of angles at which electron beam profiles can be taken while still accurately representing even the most asymmetrical of beams. The new scanning method can profile a beam while only needing a span of only180 deg. to acquire a full spectrum of data. As a result, dimensional accuracy is improved, additional parameters, such as beam velocity can be measured, and heat is more evenly distributed over the sensor which allows operation of machines at higher power and longer sensor lifetime. Advantages : LLNL’s annular and concentric slit electron beam diagnostic technology provides new concepts for analyzing electron beams and changes the geometry by which the electron beam is scanned over the sensor. It has key advantages include: 1) Increased resolution of the computer tomographically reconstructed electron beam profile using a greater and selectable number of scan angles. 2) Linear rather than circular e-beam scanning across the sensor, which is easier for many machines to perform. 3) Smaller beam scan distances from the central point, which is easier for most electron beam machines to perform. 4) Ease of fabrication for more economical sensor assembly. 5) Real time and precise speed measurement of the beam motion, and 6) More accurate reconstruction of the beam profile. Potential Applications : Electron beam welding is used to fabricate some of the highest value-added components in the nuclear and aerospace industries, as well as high volume manufacturing for the automotive industry, and in additive manufacturing for a wide range of new product applications. Providing a method to measure the power density distribution of high power electron beams at high resolution is essential for providing quality control for all of these applications. Knowing how the electron beam parameters affect the power density distribution of the beam can be used to directly determine the focus conditions high power electron beams, can provide high resolution analysis of electron beams, can be used to transfer electron beam parameters between machines and facilities, can be used to develop better electron beam gun designs, and can be used as essential information for modeling electron beam interactions with materials. Development Status: LLNL’s enhanced modified faraday cup patent portfolio, includes radial slit technology, computed tomographic reconstruction of the acquired data, and for the newer annular slit technology for higher resolution and for higher power electron beam applications. An enhanced modified faraday cup system is used for quality control on high value electron beam welds. Prototypes have been developed and tested. In addition, the next generation computed tomography software is in development. LLNL is seeking industry partners with a demonstrated ability to bring such inventions to the market. Moving critical technology beyond the Laboratory to the commercial world helps our licensees gain a competitive edge in the marketplace. All licensing activities are conducted under policies relating to the strict nondisclosure of company proprietary information. Please visit the IPO website at https://ipo.llnl.gov/resources for more information on working with LLNL and the industrial partnering and technology transfer process. Note: THIS IS NOT A PROCUREMENT. Companies interested in commercializing LLNL's High Resolution Profiling of High Power Electron Beams technology should provide a written statement of interest, which includes the following: 1. Company Name and address. 2. The name, address, and telephone number of a point of contact. 3. A description of corporate expertise and facilities relevant to commercializing this technology. Written responses should be directed to: Lawrence Livermore National Laboratory Innovation and Partnerships Office P.O. Box 808, L-795 Livermore, CA 94551-0808 Attention: FBO 382-18 Please provide your written statement within thirty (30) days from the date this announcement is published to ensure consideration of your interest in LLNL's High Resolution Profiling of High Power Electron Beams technology.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DOE/LLNL/LL/FBO382-18/listing.html)
- Record
- SN05115246-W 20181006/181004230620-c95229157863bfc1913aad1b391d91af (fbodaily.com)
- Source
-
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