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Development of a Superconducting RF 1.5 GHz Landau Cavity for Synchrotron Light Sources--Niowave, Inc., 1012 N. Walnut Street, Lansing, MI 48906; 517‑999‑3475
Dr. Terry Grimm, Principal Investigator, grimm@niowaveinc.com
Dr. Chandra Romel, Business Official, romel@niowaveinc.com
DOE Grant No. DE-FG 02‑08ER85014
Amount: $100,000
Brookhaven National Laboratory (BNL) has proposed building the
NSLSII, a third generation light source, and has identified superconducting
radio frequency (SRF) cavities as the technology of choice. The final machine configuration will require
four single-cell 500 MHz SRF cavities fed by four 300 kW klystrons to
compensate beam loss. Also, two passive,
two-cell, 1.5 GHz Landau (3rd harmonic) SRF cavities will be required
to lengthen the bunch, thereby increasing the beam lifetime. This project will develop a 1.5 GHz Landau
SRF cavity system. The cavity will use
bulk niobium, which is capable of higher gradients with lower cryogenic losses.
Also, the cavity will have improved HOM
damping by providing additional HOM couplers, and ferrite absorbers on the beam
tube. Phase I will develop the
accelerating structure and cryomodule design based on systems-efficiency
technology, beam dynamics simulations, and higher order mode (HOM) analysis. Phase II would finalize the cryomodule design
and develop prototypes for critical aspects of the system, such as the SRF
cavities, HOM couplers, and frequency tuners.
Commercial Applications and other Benefits as
described by the awardee: In addition to providing BNL with the required 1.5
GHz SRF system, the technology should have application to other light sources. To date, no