WPM HLS Status and Schedule Franz Peters Georg

WPM & HLS Status and Schedule Franz Peters, Georg Gassner SLAC / MET q q June 17 th, 2008 WPM/HLS Status and Schedule Reminder Hardware Status Schedule 1 Franz Peters, Georg Gassner fpet@slac. stanford. edu

Reminder Undulator Length = 132 Meter plus… 33 U-Segments need to be stable in a line within a few microns X & Y- Motion of single U - Segments could be larger, eventually… Vertical U-Position = f (Support temperature) = ~ 15 Micron/ºC Unpredictable motions may occur by several reasons, as … June 17 th, 2008 WPM/HLS Status and Schedule 2 Franz Peters, Georg Gassner fpet@slac. stanford. edu

Reminder WPM = Wire Position Monitor q Conductive wire is stretched (140 m) inside a conductive tube (8 mm) q RF Signal (CW) is transmitted along this air isolated “coaxial cable” q RF loops inside the tube. Loop currents determines the wire position HLS = Hydro Leveling System q Pipe ½ filled with water. Water surface used as common reference q Capacitive sensors measure the distances to this common reference q Ultrasonic sensor detects distance of surface to under water plains June 17 th, 2008 WPM/HLS Status and Schedule 3 Franz Peters, Georg Gassner fpet@slac. stanford. edu

Reminder WPM & HLS will operate as one Alignment Diagnostic System, ADS WPM measures: X & Y- Positions relative to two stretched wires 1400 mm HLS measures: Y - Positions relative to the water surface June 17 th, 2008 WPM/HLS Status and Schedule Common Task: X & Y Positon monitoring of U-Segments Resolution: < Micrometer Data rate: Every few minutes Operation: Continously, no drifts 4 Franz Peters, Georg Gassner fpet@slac. stanford. edu

Reminder ADS Position sensors at the girders Left June 17 th, 2008 WPM/HLS Status and Schedule 5 Right Franz Peters, Georg Gassner fpet@slac. stanford. edu

ADS Sensors Left to right: Wire Position Monitor - Four loops with SMA con. Field distribution - 4 Loops around the wire WPM gap view - Gap = 8 x 8 mm Left to right: HLS Capacitive sensor - Shown, down side up HLS Pot & Sensor - Pot with pipe adapter - Bracket to the girder - Sensor on top, ready to go June 17 th, 2008 WPM/HLS Status and Schedule 6 Franz Peters, Georg Gassner fpet@slac. stanford. edu

HLS Hardware Water pipes and pots Water pipe inside girder Capacitive sensor s ow l l e B Ultrasonic sensor June 17 th, 2008 WPM/HLS Status and Schedule 7 Franz Peters, Georg Gassner fpet@slac. stanford. edu

HLS Hardware Integration of LTU beam line monitors Water refill station Top view LTU beam line HLS Sensors WPM End station Undulator Beam dump HLS Pipe June 17 th, 2008 WPM/HLS Status and Schedule 8 Franz Peters, Georg Gassner fpet@slac. stanford. edu

WPM Hardware Wire tube support system June 17 th, 2008 WPM/HLS Status and Schedule Monitors at a short break section 9 Franz Peters, Georg Gassner fpet@slac. stanford. edu

WPM Hardware Signal cabling 6 5 Electronics sub-station 4 3 Monitor signal cabling 2 1 Wire position monitor Monitor cabling June 17 th, 2008 WPM/HLS Status and Schedule 10 Franz Peters, Georg Gassner fpet@slac. stanford. edu

WPM Hardware Wire End Station < Wire terminals < Aluminum supports Anocast stands (Granite + Epoxy) Wire vibration needs to be minimized! First harmonic frequency ~ 0. 5 Hz Coupling to the ground is crucial… June 17 th, 2008 WPM/HLS Status and Schedule 11 Franz Peters, Georg Gassner fpet@slac. stanford. edu

HLS Status Hardware Level sensors Tube system Network & cables Sensor calibration 100% completed 90% completed 80% completed 70% completed Software Interface with sensors completed and tested Interface with LCLS controls defined and tested Data exchange between data dump and analysis computer tested Data analysis theory defined, but not coded June 17 th, 2008 WPM/HLS Status and Schedule 12 Franz Peters, Georg Gassner fpet@slac. stanford. edu

WPM Status Wire tube support system 100% completed Local computers & ADC Interfaces 100% completed Monitor signal cable assemblies 100% completed Wire end stations & terminals 90 % completed Wire position monitors 90% completed Wire tubes & tube connections 90% completed Local electronics stations 80% completed Signal processing & Data acquisition 70% completed Software, Application & Analysis 50 % completed June 17 th, 2008 WPM/HLS Status and Schedule 13 Franz Peters, Georg Gassner fpet@slac. stanford. edu

ADS Schedule HLS Water tube system comes assembled with girders, installation June to 25/10/08 Installation of sensors and cable connections July to 25/10/08 HLS will be commissioned partly in sections of some girder July to November Commissioning of entire HLS needs time after last girder is placed. WPM Girders has to be in place, before wire tube installation can start June to 25/10/08 Installation of substations and cabling can be done any time July to 25/10/08 Due to stretched wires are needed, commissioning starts November 08 Pre-checks of the system will minimize, but not wipe out time for commissioning. In general Schedule needs to be synchronized with installation of the Undulator Segments June 17 th, 2008 WPM/HLS Status and Schedule 14 Franz Peters, Georg Gassner fpet@slac. stanford. edu

End of Presentation June 17 th, 2008 WPM/HLS Status and Schedule 15 Franz Peters, Georg Gassner fpet@slac. stanford. edu