Electron gun design study for the IUCF beam cooling system

Conference · Tue Oct 01 04:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6297988

Friesel, D L; Ellison, T; Jones, W P

The design of a low temperature electron beam cooling system for the Indiana University electron-cooled storage ring is in progress. The storage ring, which will accept the light ion beams from the existing k=200, multi-stage cyclotron facility, requires an electron beam variable in energy from about 7 to 275 keV. The electron beam system consists of a high perveance electron gun with Pierce geometry and a flat cathode. The gun and a 28 element accelerating column are immersed in a uniform longitudinal magnetic guide field. A computer modeling study of the system was conducted to determine electron beam density and transverse temperature variations as a function of anode region and accelerator column design parameters. Transverse electron beam temperatures (E /SUB t/ = mcSUS Sel(/theta/ /SUB H/ +/theta/ /SUB v/ )) of less than a few tenths of an electron volt at a maximum current density of 0.4 A/cmS are desired over the full energy range. This was achieved in the calculations without the use of resonant focusing for a 2 Amp, 275 keV electron beam. Some systematics of the electron beam temperature variations with system design parameters are presented. A short discussion of the mechanical design of the proposed electron beam system is also given.

• Research Organization: Indiana University Cyclotron Facility, Bloomington, IN
• OSTI ID: 6297988
• Report Number(s): CONF-850504-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:5
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
AMP BEAM CURRENTS
BEAM COOLING
BEAM CURRENTS
BEAMS
COMPUTERIZED SIMULATION
CURRENTS
CYCLIC ACCELERATORS
CYCLOTRONS
DESIGN
ELECTRON BEAMS
ELECTRON COOLING
ELECTRON GUNS
ELECTRON SOURCES
ENERGY RANGE
ION BEAMS
ISOCHRONOUS CYCLOTRONS
IU CYCLOTRON
KEV RANGE
KEV RANGE 100-1000
LEPTON BEAMS
PARTICLE BEAMS
PARTICLE SOURCES
PIERCE ELECTRON GUNS
RADIATION SOURCES
SIMULATION
STORAGE RINGS