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Grant applications are sought for research on very high gradient RF accelerating structures, normal or superconducting, for use in accelerators and storage rings. Gradients >150 MV/m for electrons and >10 MV/m for protons in normal cavities are of particular interest, as are means for suppressing unwanted higher-order modes and reducing costs. In muon accelerator R&D, structures for capture and ac ...

Material properties, surface dynamics, processing procedures, and geometric configurations can have significant impact on the performance of the accelerator cavities. Grant applications are sought to develop (1) new materials that are suitable for the fabrication of superconducting radiofrequency (SRF) cavities, such as large grain or single crystal Nb; (2) new or improved SRF cavity fabrication t ...

Grant applications are sought to develop high peak power, narrow-band, low-duty-cycle, low pulse rate (~100 Hz), high efficiency pulsed X-band RF amplifiers. In particular, 25 MW and 50 MW X-band (11.424) klystrons are sought that produce 2 ?s long pulses at 120 Hz. Also, low cost, 2 kW, 2 ?s, 120 Hz, 100 MHz bandwidth, low noise S-band and X-band klystron drivers are sought. Of particular interes ...

Most RF power sources for high gradient linacs for future linear colliders require high peak-power pulse modulators of considerably higher efficiency than presently available. Grant applications are sought for new types of modulators in the 100 kV – 1 MV range for driving currents of 0.1 – 1 kA, with pulse lengths of 0.2 – 5.0 ?s, and with rise- and fall-times that are ~10% of the pulse leng ...

Existing Insulated Gate Bipolar Transistor (IGBT) packages for high voltage and high pulsed current (e.g., V = 6.5 kV, I = 3 kA peak, 800 A average) are not optimized for very high speed pulsed power applications (10 MW peak for 3.2 ?s at 120 Hz) due to failure modes induced by very rapid fall times (di/dt >10 kA/?s) and/or rise times (dV/dt >15 kV/?s) upon device turn-off. Therefore, grant applic ...

High reliability, high-energy-density energy storage capacitors are a key component for the development of reliable solid state pulsed power systems. Grant applications are sought to develop and optimize storage capacitors that can: (1) deliver high peak pulse current (0.1-10 kA) in the partial discharge region (less than 30 percent voltage droop during pulse); (2) be designed with very low induct ...

High luminosity colliders can benefit from the use of a crossing angle between the colliding beams. The crossing angle will provide a larger luminosity gain if the particle bunches are tilted, resulting in what is called a “crab crossing.” Grant applications are sought for the development of crab cavities for the LHC and other applications. Approaches of interest, which may include new cavity ...

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 LK Len, lk.len@science.doe.gov

The Department of Energy High Energy Physics program supports a broad research and development (R&D) effort in the science, engineering, and technology of charged particle accelerators, storage rings, and associated apparatus. Advanced R&D is needed in support of this research in high-field superconductor and superconducting magnet technologies. This topic addresses only those superconductor and s ...

Grant applications are sought to develop new or improved superconducting wire technologies for magnets that operate at a minimum of 12 Tesla (T) field, with increases up to 15 to 50 T sought in the near future (three to five years). Vacuum requirements in accelerators and storage rings favor operating temperatures of 1.8 to 20 K. Stability requirements for magnets dictate that the effective filame ...