Fermilab / UChicago Electron-Lens Meeting

Wednesday 1 Nov 2023, 14:00 → 15:00 US/Central

1 General Updates

• It has been decided that the parts for the McMillan electron gun will be purchased through Fermilab procurement. John is starting the requisition process.
• MaryKate prepared draft reports for the modified anode configuration of the electron gun and the design of the electron guns with the flat beam profile. This report will be a chapter in MaryKate's thesis and should be written so that the physics of the design is emphasized rather than simply a set of simulations and optimizations. The output should be a set of specifications which can be converted to an engineering design. It should also demonstrate that the properties of the beam fall within the requirements . Giulio will help MaryKate achieve this level of documentation. MaryKate will also document and upload her code to an online repository.
• Nilanjan just started preparing a document which will contain the specifications for the electron cooler in IOTA. This document will take into account all the beam physics requirements for using the electron cooler in experiments. Just like MaryKate's report this document will also directly inform the engineering design of the complete electron cooler system.
• Sergei N. is moving to BNL to become the technical director for the EIC. The timeline is very tight and high energy cooling is still not finalized in the design. The CeC-X experiment has not demonstrated the kicking of the ion beam by the electron beam yet. Sergei plans to host a discussion in IPAC and find a path forward. There might be R&D opportunities related to the EIC where IOTA can participate.

2 Discussion on Cyclotron Emission Monitor

 

• Sergei K. has finished the analysis of the existing data set. He is now working on simulations of the electron beam in ASTRA and ELEGANT to model the micro-bunching process. The NEB experimental group must still write reports detailing the result of the experiment. In addition to this, Sergei K. also has some coursework at UChicago. However, he still has some spare time and this motivated Young-Kee to explore whether he can start work on the cyclotron emission monitor. After some discussion, we agreed on the following:
  • The NEB project is still Sergei K's thesis topic. While NEB is a very important project with direct application to the EIC, the funding and timeline is not clear. Young-Kee and Sergei N. will chat separately to ascertain the future of the project and Sergei K.'s efforts.
  • Giulio envisions three stages to the project. (1) Analysis of signal power, spectral analysis and noise to gauge feasibility and generate design parameters for the system in IOTA. This will be a technical report. (2) A demonstration experiment at UChicago which will prototype the antenna and the electronics. (3) Engineering design of a system for the electron cooler in IOTA.

These need to be done within 1 year to make it into the final design of the electron lens. Giulio and I will write a 1-2 page document in the next few weeks which will detail the outcomes of the respective stages while Young-Kee ascertains the long-term outlook of Sergei K's thesis and his advising committee.