1. Workshop Aim Rongli Geng February 29, 2016
Mini-workshop on beam-line field-emitter particulates in CEBAF SRF linacs
Workshop Aim
Rongli Geng
February 29, 2016

2. Objective
Evaluate field-emission impact to operation of CEBAF SRF linacs.
Identify the root cause(s) of particulate field-emitters in operational SRF cavities, with a focus on the particulates originating from the UHV beam-line components.
Develop solutions for “particulate-free” beam-line components for future SRF linacs as well as mitigations against accumulated field emitter particulates for operational SRF linacs.

3. Approach Collaborate across boarders of organization Knowledge driven
A working cryomodule is a result of efforts by many units with our lab organization.
A dormant particulate introduced in one stage may become a lethal field emitter in the end.
We are inter-dependent in fighting against field emission.
Knowledge driven
Permeate, where it already exists
Create, where is does not exist
Measure, measure, measure
Beam line particulate field emitter is a shared problem in the SRF community

4. Rules & Suggestions One speaker at a time Ask questions Take notes
Send your question/note to me after the meeting