Continuous Wave, L-Band, Cryogenic Photocathode
Electron Gun--Advanced
Energy Systems, Inc., 27 Industrial Building, Unit E, Medford, NY
11763; 631-345-6264
Mr. Thomas Schultheiss, Principal Investigator, tom_schultheiss@mail.aesys.net
Mr. Anthony Favale, Business Official, tony_favale@mail.aesys.net
DOE Grant No. DE-FG02-01ER83136
Amount: $99,707
A
continuous wave cryogenic photocathode electron gun operating in the L-band is
the preferred approach for a wide variety of next generation and advanced
electron accelerators and light sources. The
high average current required for these applications results in average power
densities that are much higher than in previous electron guns due to the
continuous wave operation. In
addition, these advanced applications require improvements in cathode lifetime
to meet operational availability goals. This
project will address both of these issues by developing a cryogenically cooled
continuous wave gun that will utilize the high heat transfer characteristics of
two-phase, forced flow cooling in a subcooled cryogen.
In Phase I, a three-dimensional thermal and structural finite element
analysis, backed up with radio frequency analysis and beam dynamics, will be
used to determine the heat flux required to be absorbed by the cryogen. The
high-power of this electron gun will be removed using subcooled two-phase
cryogenic flow. A complete
preliminary design of the electron gun with its cooling passages and associated
coolant distribution system, and the required inlet thermodynamic properties of
the cryogen will be developed.
Commercial
Applications And Other Benefits as described by awardee: Continuous wave electron guns should
provide the high-brightness, high average current requirements necessary for the
Photo Injected Energy Recovery Linac (PERL) and other applications requiring
high power electron beams, e.g., electron cooling of ions, an electron ion
collider, and a PERL based light source.