Progress with PXIE MEBT Chopper

Conference · Tue May 01 04:00:00 EDT 2012 · Conf.Proc.C1205201:2708-2710,2012

OSTI ID:1048910

Lebedev, V; Chen, A; Pasquinelli, R; Peterson, D; Saewert, G; Shemyakin, A; Sun, D; Wendt, M; Tang, T

A capability to provide a large variety of bunch patterns is crucial for the concept of the Project X serving MW-range beam to several experiments simultaneously. This capability will be realized by the Medium Energy Beam Transport's (MEBT) chopping system that will divert 80% of all bunches of the initially 5 mA, 2.1 MeV CW 162.5 MHz beam to an absorber according to a pre-programmed bunch-by-bunch selection. Being considered one of the most challenging components, the chopping system will be tested at the Project X Injector Experiment (PXIE) facility that will be built at Fermilab as a prototype of the Pojrect X front end. The bunch deflection will be made by two identical sets of travelling-wave kickers working in sync. Presently, two versions of the kickers are being investigated: a helical 200 Ohm structure with a switching-type 500 V driver and a planar 50 Ohm structure with a linear {+-} 250 V amplifier. This paper describes the chopping system scheme and functional specifications for the kickers, present results of electromagnetic measurements of the models, discuss possible driver schemes, and show a conceptual mechanical design.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: DOE Office of Science
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1048910
• Report Number(s): FERMILAB-CONF-12-187-AD
• Conference Information: Journal Name: Conf.Proc.C1205201:2708-2710,2012
• Country of Publication: United States
• Language: English

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