PETRA-III Laser-wire

The ELOG for this experiment

PETRA-III Operation

• PETRA-III Status
• PETRA-III Schedule 2013

20Hz 532nm Laser

• Link to laser datasheet
• Timing Uses the DG535 to synchronise the laser with the bunches
• Measurements M^2, waist size, Raleigh range, power, jitter etc
• Interlock Safety shutters, operation, interfacing

520kHz 1064nm Laser

• Description of laser Schematics of laser, component list, operation
• Timing
• Measurements
• Coupling to fibre (how-to)

Beam Transport; Optics; Interaction Point

• 20Hz Laser optics and beam path in hut
• Transport of beam to tunnel and periscope control
• Breadboard schematic and diagnostics
• Component List of all optical and mechanical items
• Measurements made at IP
• Vacuum chamber drawing (link to Desy)

DAQ; Hardware

• Laser sync with bunches at 20Hz
• Laser sync at 520Hz and upgrade notes
• PXI system and inputs/outputs
• Patch panel connectors
• Cabling lengths, routes, connections
• Datasheets for hardware (DG535, OWIS, stages & controllers)
• Timing diagrams for data acquisition
• LaserWire Control and Data Acquisition and instructions for setting up the PXI hardware
• TINE data and Instant Client

Recent Scans

• First Comptons with fast laser

PETRA Beam Optics

• Beta, Dispersion, Momentum spread from 2009

Useful Documents

• DiagBeamlineKube.pdf: Talk G. Kube: PETRA-III diagnostics beam line
• Komponentenliste_V12_LWC.pdf: Index of all beam diagnostics components for PETRA-III and transport lines (Version 12 15.01.2009)
• P3_Uebersicht_BPM-Anordnung--130_01_11_05.pdf: Overview of BPM types for PETRA-III and transport lines (Review a)
• P3_Diagnose-Uebersicht--130_01_08_77.pdf: Graphical overview of all MDI diagonstics components in PETRA-III (Version 10.12.2007)
• laser_layout.ppt: Laserhut and breadboard layout

First scans

Vertical Scan - 17/06/2009, 23:05:02

Horizontal Scan - 17/06/2009, 23:23:20

Photos

• BPM_SWL_39 1, 2
• BPM_SWL_31 1, 2
• Calorimeter 1, 2
• Exit window 1
• LSW 1, 2

Talks, Meetings

• BKR_Meeting_24-07-09.pdf: Slides for BKR meeting on 24/07/2009

Python/EPICS/labview

cygwin (+python + devel)

EPICS

• Insert into .bashrc

export EPICS=/home/Administrator/EPICS/
export EPICS_VER=R3.14.10
export EPICS_HOST_ARCH=cygwin-x86
export EPICS_BASE=${EPICS}/${EPICS_VER}/base/
export PATH=${PATH}:${EPICS_BASE}/bin/${EPICS_HOST_ARCH}

• Emacs in .bashrc

export PATH=${PATH}:/home/Administrator/emacs-21.3/bin/

• cd EPICS/${EPICS_VER}/base
• make

Python/EPICS

• greenlet
• ctypes
• cothread