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RF Gun and Vacuum Technologies for Light Source Facilities

Please Note that a Letter of Intent is due Tuesday, September 08, 2015 5:00pm ET Program Area Overview Office of Basic Energy SciencesThe Office of Basic Energy Sciences (BES) supports fundamental research to understand, predict, and ultimately control matter and energy at the electronic, atomic, and molecular levels in order to provide the foundations for new energy technologies and to support DOE missions in energy, environment, and national security.  The results of BES_supported research are routinely published in the open literature. A key function of the program is to plan, construct, and operate premier scientific user facilities for the development of novel nanomaterials and for materials characterization through x_ray and neutron scattering; the former is accomplished through five Nanoscale Science Research Centers and the latter is accomplished through the world’s largest suite of light source and neutron scattering facilities.  These national resources are available free of charge to all researchers based on the quality and importance of proposed nonproprietary experiments. A major objective of the BES program is to promote the transfer of the results of our basic research to advance and create technologies important to Department of Energy (DOE) missions in areas of energy efficiency, renewable energy resources, improved use of fossil fuels, the mitigation of the adverse impacts of energy production and use, and future nuclear energy sources.  The following set of technical topics represents one important mechanism by which the BES program augments its system of university and laboratory research programs and integrates basic science, applied research, and development activities within the DOE. For additional information regarding the Office of Basic Energy Sciences priorities, click here.  TOPIC 4: RF Gun and Vacuum Technologies for Light Source Facilities  Maximum Phase I Award Amount:  $150,000 Maximum Phase II Award Amount:  $1,000,000 Accepting SBIR Phase I Applications:  YES Accepting SBIR Fast_Track Applications:  YES Accepting STTR Phase I Applications:  YES Accepting STTR Fast_Track Applications:  YES The Office of Basic Energy Sciences, within the DOE?s Office of Science, is responsible for current and future synchrotron radiation light sources, free electron lasers, and spallation neutron source user facilities. This topic is specifically focused on the development of small aperture vacuum technology and robust microwave thermionic guns to enhance light source user facilities or enable future upgrades.     Grant applications are sought in the following subtopics:   a. Development of Complex, Integrated 3D Vacuum Chamber Structures   Next generation synchrotron light sources would like to make use of vacuum chambers of a much reduced inner size.  There is a concurrent requirement for the egress of both insertion device and bend magnet xray radiation [1,2].  X_ray egress from the storage ring vacuum chamber requires tangential branching tubes to connect to the x_ray beam lines [3,4,5,6] and needs to be more space efficient than existing designs to fit into highly packed, optimized magnetic lattices.  It is envisioned that these branching egress chambers will need to simultaneously integrate topologically complex radiation absorbers for up to a kW of synchrotron radiation, vacuum pumping port arrays to ensure pressures around a nTorr, beam position monitor electrodes, temperature monitors, and cooling systems into progressively smaller physical packages [1]. The integrated structures will need to reliably function in the intense radiation environment of a synchrotron without degradation to vacuum quality, or mechanical integrity. We seek proposals for designs incorporating new fabrication technologies to produce these complex UHV structures. Three dimensional printing of metals is one example technology candidate for production. Integration of the photon mask development with NEG surface coating technology is desirable [7,8,9].  Demonstration should include integrated mock_ups with supports, vacuum chambers and joints/bellows, and/or performance tests on existing synchrotrons.  Questions ? Contact: Eliane Lessner, eliane.lessner@science.doe.gov b. Robust Microwave Thermionic Electron Gun Grant applications are sought for the design, modeling and prototype development of a robust S_band rf thermionic electron gun powered by a 5 MW peak rf power input at a 30 ? 100 Hz repetition rate with inpulse average current of 0.5 _1 A, suitable for compression with an alpha magnet, 2_3 MeV beam energy at the gun exit, normalized r.m.s. emittance of ~5 _10 _ mm_mrad and with a robust, maintenance_free cathode insertion mechanism capable of position tuning and locking. It is expected that the gun will supersede performance characteristics and reliability of existing thermionic rf electron guns [1,2,3] and can be used in continuous nonstop operation in the injectors of the synchrotron light sources as well as to support high average power THz sources [4,5].   Questions ? Contact: Eliane Lessner, eliane.lessner@science.doe.gov c. Other In addition to the specific subtopics listed above, the Department invites grant applications in other areas that fall within the scope of the topic description above.      Questions ? Contact: Eliane Lessner, eliane.lessner@science.doe.gov

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