[PEPPo] Ce+BAF weekly meeting cancelled for JLAAC

[Joe Grames]

Dear Ce+BAF colleagues,

Due to JLAAC and a short week tomorrow's Ce+BAF meeting is cancelled - we'll resume next week.

In the meantime, please consider the "ask" I sent to all of you last week.  I'm available to discuss, please reach out if you're having a tough time getting started.

-Joe

________________________________
From: Joe Grames
Sent: Thursday, January 11, 2024 3:15 PM
To: peppo at jlab.org <peppo at jlab.org>; Matthew Poelker <poelker at jlab.org>; Md Abdullah Mamun <mamun at jlab.org>
Subject: Instruction for your 3-year R&D feedback

Dear Ce+BAF colleagues,

We're being asked by lab management to estimate the resources (i.e. budget) we would request in order to support positron beams Research & Development.   As explained at yesterday's working meeting, the goal of this exercise is to write down the objectives, scope and resources to perform R&D over the next 3-years (likely this exercise is updated annually).

A list of possible R&D topics is listed further below, find your favorite(s) and/or add to them!

What am I asking?

During the next ~couple weeks, find some quiet time for yourself or with colleagues, to discuss how you imagine your R&D topic(s).    In some cases detailed proposals/plans are already developed, and ~all of you are already aligned to specific R&D topics.    To help collect your input please use the attached Word template and Excel templates.   Please send me your two docs (for yourself or working teams) before our January 24th meeting (we won't meet next week due to JLAAC).

In the meantime, I will focus with some of you capture the scope to restore the LERF 10 MeV injector region, for future  needed R&D beam studies.

Kind regards,
-Joe


  *
Electron Injector Topics​
     *
Reducing gas load in electron gun to increase photocathode lifetime​
     *
Increasing laser spot size at the photocathode to increase photocathode lifetime​
     *
Creating reliable higher voltage connections to inverted gun geometry​
     *
Optimizing 10 MeV beam line for milliamp polarized source​
     *
Optimizing full-energy beam line for delivering >100 kW beam to target​
     *
Optimizing SRF/RF configuration, energy gain, cryogenic load, footprint​
     *
Exploring a degrader concept​​
  *
Positron Injector Topics​
     *
Developing vacuum integrated rotating cooled high power target​
     *
Developing capture solenoid(s) for collection and/or bucking​
     *
Developing cw-capture cavity​
     *
Developing radiological design for integrated target, solenoid, capture systems a.k.a. “e+ source”​
     *
Developing e+ separation dump area (i.e. photon and e- dumps), and shielding configuration​
     *
Optimizing full-energy positron transverse/longitudinal e+ bunch generation​
     *
Exploring spin rotation design​
     *
Developing by-pass beam line optics​
  *
12 GeV Ce+BAF Topics​
     *
Optimizing 123 MeV transport and injection beam line​
     *
Studying CEBAF acceptance and optimizing CEBAF for 12 GeV e+​
     *
Exploring hardware upgrade for positron beam delivery (magnet reversal, diagnostics)​
     *
Exploring radiological design and control of beam power


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