1. E-201 Requests for Run 1A G. Andonian, O. Williams, S. Antipov on behalf of E-201 collaboration FACET Users’ Mtg – August 30, 2011

2. E-201 Measurements for Run 1A CCR spectra – 11 tubes, 3 slabs Breakdown

3. E-201 needs for Run 1A - 2012 – Fix IP2A (needs set screw) for HeNe injection – OAP Clearance from “off-experiment” beam Engineering for horn/OAP Stages/actuator – Mark beam on IP2A and IP2B – establish beam vector (with beam waist at sample) Requires 2 cameras (with appropriate optics/lenses) IP2A/2B made of glass (mylar pellicle not fluorescing) – HeNe (with external focusing optics <100um spot) for alignment through tubes Remote turn-on – TPX window for CCR – “Breakdown Flash” camera Optics (camera lens) In vacuum mirror (off-beam line axis) – DAQ Software for interferometer and data logging Requires moving stage (and readback) Correlated to pyro signal (ADC readback) Correlated to charge signal – EPICS panel and tutorials interferometer Sample holder stages (x,y,z) Cameras – Accelerator Knobs for: flat beams (different aspect ratios up to 100:1 or greater) varying bunch lengths (15um adjustable to 200um) Measurement of bunch length – Controlled access Alignment, install, etc.