Development of a 100 kW 2.815 GHz Continuous-Wave Elliptic Beam Klystron with Two Output Windows

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-09ER85288
Agency Tracking Number: 90011
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: 02 a
Solicitation Number: DE-PS02-08ER08-34
Small Business Information
5 Rolling Green Lane, Chelmsford, MA, 01824
DUNS: 605667125
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Jing Zhou
 (617) 308-6378
Business Contact
 Michael Lawrence
Title: Mr.
Phone: (978) 376-0143
Research Institution
At present, conventional circular-beam klystrons are used to drive accelerators at a number of DOE user facilities. Although sheet or elliptic beam technology makes it possible to operate high-power continuous wave (CW) devices at low beam voltages and high efficiency, important issues in the design of high-power, high-efficiency sheet or elliptic-beam klystrons still remain: how to design a high quality, high-power elliptic electron beam; and how to design an elliptic-beam klystron with an interaction circuit that will be compatible with the magnetic focusing system required to maintain beam quality. This project will develop an innovative, high efficiency, 2.815 GHz 100kW CW elliptic beam klystron (EBK) capable of operating at low voltages. Phase I will (1) prepare a concept design of the proposed elliptic beam klystron; (2) design an elliptic-beam klystron interaction circuit using small-signal theory; (3) design the elliptic klystron cavities; (4) perform 3D simulations of the elliptic electron gun, beam compression, and matching; and (5) development a template for 3D simulation modeling of the small-signal and large-signal elliptic-beam klystron interactions. Commercial Applications and other Benefits as described by the awardee If successful, the proposed design should facilitate the development of high-efficiency, high-power elliptic-beam klystrons. As a more efficient, lower voltage device, elliptic beam klystrons could replace conventional klystrons in new installations or upgrades. The market size of klystrons is about $200M/year worldwide. The annual worldwide sales of elliptic-beam klystrons are estimated to be $5-10M in 5 years and $20-30M in 10 years

* Information listed above is at the time of submission. *

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