2016-Apr-01 Comp. Phys. Biweekly Report

Yves Roblin

• Worked on the cooler design with He Zhang. Presented results
• Prepared for the JLEIC collaboration meeting
• Optics on call for the CEBAF machine.
• Preparing a RHIC technote with F. Meot on CEBAF-ER modeling
• setting up Pelegant for the farm
• investigating the various effects one has to simulate for JLEIC, selecting/researching adequate codes.
• Working on importing the lattice into the CED as a proof of principle

He Zhang

• Implementing a Particle Swarm Optimization algorithm for the LEM upgrade project. The idea is to optimized the CEBAF trip rate and energy cost. Using an open source library (popot) for this.
• Used betacool to attempt to find a stable solution for the single bunch cooler.
• Attended the collaboration meeting.

River Huang

• collaborating with Faya Wang (SLAC) for the field emission simulations. They are now being emitted and propagated in the waveguide.
• Studying the effect of the waveguide geometry on the field emission yield.
• Comparing efficiency of traceless tensor method versus regular tensor description of the fast multipole formalism. Preparing a paper on the algorithm.