HESQ (Helical Electrostatic Quadrupole), a low energy beam transport

Conference · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5138628

Raparia, D ^[1]

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1. Houston Univ., TX (USA). Dept. of Physics Texas Accelerator Center, The Woodlands, TX (USA)

In this paper Helical Electrostatic Quadrupole (HESQ) channel is suggested for low energy beam transport of H{sup -} beams from ion-source to the RFQ. Being an electrostatic focusing lens, the HESQ avoids neutralization time. The HESQ lenses provide stronger first-order focusing in contrast to weak second-order focusing of einzel lenses and is also stronger in focusing than the alternating gradient focusing. In this paper, we will present analytical formalism for such channel and results of PIC simulation with space charge. 10 refs., 6 figs., 1 tab.

• Research Organization: Houston Univ., TX (USA). Dept. of Physics
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG05-87ER40374
• OSTI ID: 5138628
• Report Number(s): DOE/ER/40374-29; CONF-891055--5; ON: DE90005900
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
BEAM EMITTANCE
BEAM FOCUSING MAGNETS
BEAM TRANSPORT
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTROSTATIC LENSES
EQUATIONS
EQUATIONS OF MOTION
EQUIPMENT
ION SOURCES
LENSES
MAGNETS
MATHEMATICAL SPACE
MULTIPOLES
PARTIAL DIFFERENTIAL EQUATIONS
PHASE SPACE
QUADRUPOLES
RF SYSTEMS
SIMULATION
SPACE
SPACE CHARGE