Alignment Diagnostic System Status Content Refresh ADS… Schedule as planned… Status of Ingredients & Integration … Summary Lehman Review, October 06 1

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 micro radian - Yaw 30 micro radian - Roll 1000 micro radian Lehman Review, October 06 2

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 micrometer depend on thermal capacity. Microns Trends days Microns Cycles hours Required tolerances are much tighter, that leads to the Alignment Diagnostic System [ADS] Lehman Review, October 06 3

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 Lehman Review, October 06 4

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 Undulator 132 m ADS control section 140 m Lehman Review, October 06 5

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 Number of sensors ~ 140 Y- positions Type of sensor Capacitve and Ultra sonic Wire monitor HLS monitor Lehman Review, October 06 6

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… Lehman Review, October 06 7

ADS schedule as planned… Activities until: Engineering & specifications January 07 Component design & drawings March 07 Procurement & production September 07 Assembly, calibration & system test March 08 Installation & commissioning July 08 Lehman Review, October 06 8

Status of Ingredients & Integration at a glance HLS Capacitive Ultra sonic WPM Integration On order Done Design done Under design No action Engineering Sensors Tubes Supports End-stations Sub-stations Electronic Software Test facility Lehman Review, October 06 9

Status of WPM sensors: Design done Monitor Length 74 Millimeter Monitor GAP 8 Millimeter Square Lehman Review, October 06 10

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 Lehman Review, October 06 11

Status of HLS ultrasonic sensors: On order Measurement of shock wave transition time (pulse sonar) Single Echo Shock Wave Transceiver Air Water T1 T2 T3 Triple Echo Shock Wave Transceiver Speed of Sound H2O = 1420 m/sec Shock wave echo time = T2 -T1 will be used as absolute scaling factor 0.1 Micro second T 1 2 3 5 Micro sec 20 Micro sec Lehman Review, October 06 12

Status of HLS & WPM supports: Design done WPM to girder support HLS to girder support Lehman Review, October 06 13

Status of Wire End Station: Under design Lehman Review, October 06 14

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 Lehman Review, October 06 15

Integration of ADS to girder: Artist view Drawing: Courtesy by Scott Doran, ANL Ultra sonic Capacitive WPM Lehman Review, October 06 16

Integration of Wire End Station: Under design Lehman Review, October 06 17

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 Lehman Review, October 06 18

Integration of WPM substation: Engineering HLS pipe Control of 6 U- Segments Lehman Review, October 06 19

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 Lehman Review, October 06 20