Test of the transport properties of a helical electrostatic quadrupole and quasi-octupole

Conference · Tue Jun 01 00:00:00 EDT 1993

OSTI ID:10164623

Xiu, L; Ohnuma, Shoroku; Wang, K ^[1]; Meitzler, C R; Xu, Y ^[2]

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1. Houston Univ., TX (United States). Dept. of Physics
2. Sam Houston State Univ., Huntsville, TX (United States). Dept. of Physics

A third-generation continuous helical electrostatic quadrupole (HESQ) lens has been built and tested. The new HESQ is 21.5 cm long and has a 3.6 cm diameter aperture. The HESQ has been tested under two separate conditions: with a pulsed 25 keV, 0.5 mA proton beam; and a 25 keV, 10 mA proton beam. The input emittance was fixed using a multi-aperture collimator. A comparison is made between experiment and numerical simulations for a wide variety of operating conditions. A second possible operating mode is the quasi-octupole mode, which offers significantly reduced aberration when compared to the quadrupole mode. The results of preliminary tests in this operating mode will be presented.

• Research Organization: Houston Univ., TX (United States). Dept. of Physics
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG05-87ER40374
• OSTI ID: 10164623
• Report Number(s): DOE/ER/40374-71; CONF-930511-94; ON: DE93014887; CNN: Grant RFGY9203; TRN: 93:016393
• Resource Relation: Conference: PAC `93: international particle accelerator conference,Washington, DC (United States),17-20 May 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM TRANSPORT
ELECTROSTATIC LENSES
PERFORMANCE TESTING
QUADRUPOLES
COMPUTERIZED SIMULATION
430303
EXPERIMENTAL FACILITIES AND EQUIPMENT