HESQ (Helical Electrostatic Quadrupole), a low energy beam transport for the SSC linac

Conference · Sat Sep 01 04:00:00 EDT 1990

OSTI ID:6802024

Raparia, D

A Helical Electrostatic Quadrupole (HESQ) is an option for the low energy beam transport (LEBT) of the SSC linac to transport and match a 35 keV H{sup {minus}} beam from a circular symmetric Magnetron ion source to a 428 MHz RFQ. Being an electrostatic focusing lens, the HESQ avoids neutralization of the H{sup {minus}} beam due to the background gas. The HESQ lenses provide stronger first-order focusing in contrast to weak second-order focusing of einzel lenses and is also stronger than alternating gradient focusing. In this paper, we will present a design and results of a PIC code simulation with space charge.

• Research Organization: Superconducting Super Collider Lab., Dallas, TX (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC02-89ER40486
• OSTI ID: 6802024
• Report Number(s): SSCL-312; CONF-9009123--10; ON: DE91000069
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
BEAM EMITTANCE
BEAM TRANSPORT
BEAMS
COMPUTERIZED SIMULATION
HYDROGEN 1 MINUS BEAMS
ION BEAMS
ION SOURCES
LINEAR ACCELERATORS
QUADRUPOLE LINACS
SIMULATION
SPACE CHARGE
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER