Difference between revisions of "Beam Line"

Revision as of 17:18, 2 October 2008

E06-010 Instrumentation Requirement List: Jian-Ping Chen's memo to Kees De Jager, 08/07/08

.doc file and htm file

ARC energy measurement

Compton Polarimeter

HARP and HARP scan procedures

Please follow the directions at the Harp Scan Page [Harp Scan page]

Beam raster

Beam charge monitors (BCM) and calibration procedure

Beam position monitors (BPM) and calibration procedure

How to perform a BPM pedestal run:

1. MCC hast to follow the following procedure:

    - open BPM window "BPM Diagnostics - SEE"
    - from there pull down the "Expert Screens" and open "Gain Control"
    - for IOCSE10, use the pull down window and change from "auto gain" to "forced gain". Then change the Forced Gain values x and y to zero.

2. CODA has to run in pedestal mode:

    - if you were running before you first have to press Abort
    - choose the appropriate configuration in runcontrol
    - select "PEDRUN"  - Press RunTypes button in RunControl

3. Run get_bpm_pedestals.C in the root analyzer:

    - you might have to modify some details 
    - the code should print out the new pedestals at the end 
    - load the database into an editor and change them (2nd line of the [BPMx] blocks)

Moller polarimeter and results of measurements

Scattering chamber upstream and downstream beam pipe size and window thickness

HAPPEX Luminosity (Lumi) monitors

Beam dump