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Alignment Diagnostic System Status

Alignment Diagnostic System Status. Content Refresh ADS… Schedule as planned… Status of Ingredients & Integration … Summary. Refresh… Required stability of the Undulator. PRD 1.4 - 001 – rev3, by Heinz Dieter Nuhn, SLAC. Transverse motion of components should be lower as:

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Alignment Diagnostic System Status

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  1. Alignment Diagnostic System Status Content • Refresh ADS… • Schedule as planned… • Status of Ingredients & Integration … • Summary 1

  2. Refresh… Required stability of the Undulator PRD 1.4 - 001 – rev3, by Heinz Dieter Nuhn, SLAC Transverse motion of components should be lower as: • X & Y Position of Quads (3s)2 micro meter • Undulator segment - Pitch 16 microradian - Yaw 30 micro radian - Roll 1000 micro radian 2

  3. Refresh… Undulator motions expected • Shrinking of construction concrete Trends: ~ One millimeter / year or 2 - 3 micrometer / day • Thermal driven transverse motions Cycles: Heating or cooling of supports Swing: - 0.5 < T < 0.5 degree K results into 10 - 15 micrometerdepend on thermal capacity. Microns Trends days Microns Cycles hours Required tolerances are much tighter, that leads to the Alignment Diagnostic System [ADS] 3

  4. Refresh… ADS = Combination of Water & Wires • Hydro Level System [HLS] by Georg Gassner, SLAC HLS sensor measures vertical distances to a common water level. • Wire Position Monitor [WPM] System WPM measures horizontal & vertical distances to a stretched wire. Combination of both leads to controlled Undulator X & Y position data 4

  5. Refresh ADS… Task, Geometry & Layout Position tracking of 33 Undulator Segments on a sub-micrometer scale. Water level and two stretched wires will be used as reference lines B A Beam 33 1 BPM s Undulator132 m ADS control section 140 m 5

  6. Refresh ADS... Quality and Quantities Wire Position Monitor System • Resolution < 100 Nanometer • Instrument drift < 100 Nanometer/day • Number of sensors ~ 140 X- & Y-positions • Type of sensor Electro magnetic Hydro Leveling System • Resolution ~ 1 Micrometer • Instrument drift < 100 Nanometer/day • Number of sensors ~ 140 Y- positions • Type of sensor Capacitve and Ultra sonic Wire monitor HLS monitor 6

  7. ADS Status & Integration Preliminary Design Review on ADS in August 06 Report summary: Go ahead… Order equipment & sensors soon as possible… Study temperature effects of quadrupoles & supports… 7

  8. ADS schedule as planned… • Engineering & specifications January 07 • Component design & drawings March 07 • Procurement & production September 07 • Assembly, calibration & system test March 08 • Installation & commissioning July 08 Activities until: 8

  9. HLS Capacitive Ultra sonic WPM Integration On order Design done Under design Done Engineering No action Status of Ingredients & Integration at a glance Sensors Tubes Supports End-stations Sub-stations Electronic Software Test facility 9

  10. Monitor Length 74 Millimeter Monitor GAP 8 Millimeter Square Status of WPM sensors: Design done 10

  11. Status of HLS capacitive sensors: On order Capacity indicates distance of electrode to water surface. Electrode area A εair = 1 D air A C = ε D εwater = 80 D water Commercial system, widely in use at SLAC Metrology. Capacitive Sensor Head Electronic inside 11

  12. Single Echo Triple Echo Speed of Sound H2O = 1420 m/sec T T T 3 2 1 Air 20 Micro sec 5 Micro sec Water T3 T2 T1 0.1 Micro second Shock Wave Transceiver Shock Wave Transceiver Shock wave echo time = T2 -T1 will be used as absolute scaling factor Status of HLS ultrasonic sensors: On order Measurement of shock wave transition time (pulse sonar) 12

  13. Status of HLS & WPM supports: Design done WPM to girder support HLS to girder support 13

  14. Status of Wire End Station: Under design 14

  15. Integration of ADS to girder: Design done Cross section Upper Wire WPM Lower Wire HLS Front view 4 HLS & 4 WPM sensors on each Undulator Segment. Top view 15

  16. WPM Capacitive WPM Capacitive Capacitive Ultra sonic Drawing: Courtesy by Scott Doran, ANL Integration of ADS to girder: Artist view 16

  17. Integration of Wire End Station: Under design 17

  18. Integration of WPM electronic: Engineering Five substations will be located inside the Undulator section and one upstream One substation controls transverse positions of three segments on each side Two BPM s, ahead of the Undulator will be connected with the WPM system 18

  19. Integration of WPM substation: Engineering HLS pipe Control of 6 U- Segments 19

  20. Summary • According to the planned schedule: • All major ADS construction activities seems to be on track. • All relevant components of ADS are tested, successfully. • All HLS readout electronic and all HLS sensors are on order. • According to integration into the Undulator: • ADS components are now integrated into the Undulator design. • Fiducialization will be a part of standard assembly procedures. • No delays for installation and commissioning expected, until now. End of presentation 20

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