What question did this study set out to answer?

The aim is to design a beam chopping scheme for the new LAMP MEBT to maintain required beam timing patterns.

February 2, 2026Open Access

A beam chopping scheme concept for the new LAMP MEBT

Key Points

The aim is to design a beam chopping scheme for the new LAMP MEBT to maintain required beam timing patterns.
Designed a 3-MeV Medium Energy Beam Transport (MEBT) system with two choppers.
Simulated the beam dynamics to assess the effect of satellite bunch removal.
Evaluated timing patterns to ensure compatibility with existing target stations.
Successful simulation of the beam chopping scheme producing the desired timing patterns.
Demonstrated effective removal of unwanted satellite bunches from the beam.
The new RFQ design will preserve high-intensity bunch requirements for user facilities.

Abstract

As part of the LANSCE Accelerator Modernization Project (LAMP), the two existing 750-keV Cockcroft Waltons are planned to be replaced by a single radio-frequency quadrupole (RFQ). The new LAMP front-end needs to deliver beams with similar timing patterns to what is currently delivered to the multiple target stations. To accomplish this, the 3-MeV Medium Energy Beam Transport (MEBT) is designed with two choppers that help produce beam timing patterns required by the experimental user facilities. The new RFQ will introduce satellite bunches around the single high-intensity bunch that is required by the users. These satellite bunches need to be removed in the MEBT. This contribution describes the design of LAMP MEBT with a beam chopping scheme and presents simulation results.

A beam chopping scheme concept for the new LAMP MEBT

Key Points

Abstract

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