[PEPPo] e-/e+ seminar today

[Joe Grames]

Hi folks,

Bringing to your attention today's accelerator seminar about an ERL-based e-/e+ collider concept.   Unfortunately I have another commitment, hopefully someone will attend and can give a summary at next week's Ce+BAF meeting.

Joe


ACCELERATOR SEMINAR - ANDREW HUTTON - MAY 29
Tomorrow (Thursday, May 29) at 11 a.m., Andrew Hutton of Jefferson Lab will present “The Ghost Collider” in Applied Research Center (ARC) rm. 728 and zoom.

URL:
https://jlab-org.zoomgov.com/j/16121109706?pwd=dUhFdHVDdkY1SGYzMldneVpkYVJTQT09&omn=1604515245

Abstract: Present and future high-energy electron-positron colliders are limited by two effects: the energy required to accelerate the beams and the electromagnetic beam-beam disruption. “The Ghost Collider” is an innovative concept that circumvents both problems based on energy-recovery linac (ERL) technology. The first key innovation is the placement of electron and positron bunches within the same radiofrequency bucket, with one being accelerated and the other decelerated. The buckets are therefore electrically neutral; beam position monitors will register no current (hence “ghost”). Crucially, when the beams are decelerated, the energy is recovered, which is a vital part of making the collider more sustainable. The second key innovation is at the interaction point (IP); an electron bunch and a positron bunch collide with an electron bunch and a positron bunch from the opposite direction. These collisions are electrically neutral, so there is no beam-beam disruption at the IP to first order, eliminating the primary limit on luminosity in all other collider concepts.

[https://mcusercontent.com/1de9c43e6d5e45ff0ecd664cd/images/0c7d65e3-e583-58cb-d43f-831a92b5277f.jpeg]
Andrew Hutton will present at the next Accelerator Seminar.

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