1. Readiness of the FOS monitor for the thermal mock-up and recent activities. Pisa, 6 th PXD SVD Workshop E. Currás, D. Moya, I. Vila, A. L. Virto., J.González Instituto de Física de Cantabria (CSIC-UC ) G. Carrión, M. Frövel. Instituto Nacional de Técnica Aeronautica (INTA )

2. Outline — Status and open issues concerning the FOS for the mock-up. — Relative displacement monitoring for the final application at Belle II vertex. moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. 2

3. Fiber cables and sensors for the mock-up 3 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. Four cables with four sensors Additional FOS with not specific support (see next table)

4. FOS at DESY test beam 4 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. Fibres for PXD thermal set-up Fibre NºNº of sensorspositionprotectionparameter 514On top of PXD on airTeflonTemperature 524On top of PXD on airTeflonTemperature 534On top of PXD on airTeflonTemperature 374On top of PXD on air-Temperature + humidity 384On top of PXD on air-Spare OS-42101To be definedmetalTemperature sensor 11To be defineTeflonTemperature sensor 21To be defineTeflonTemperature Fibre 1 polyimida2To be define-Temperature + humidity Fibre 2 polyimida2To be define-Temperature + humidity SN89356/00031To be definedmetalTemperature New sensors January Test Beam sensors DAQ integration using January test beam EPICS driver

5. All the fibers calibrated with temperature at an humidity of 5% 5 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. — Both teflon protected sensors and not protected sensors calibrated at high and low humidity. The sensitivity for both obtained at low humidity calibration — Teflon protected fibers with more than one sensor are sensitive to humidity with a delay of days. The offset will be obtained from calibrations. Sensor value will be stable 72 hours after humidity reduction in the mock-up cage. — For the not protected sensors ( humidity + temperature) the offset will be determine in the mock-up using a temperature reference sensor. This sensors are not calibrated with humidity.

6. Teflon protected sensor sensitivity to humidity 6 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA.

7. Fibers calibration results 7 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA.

8. Teflon protected Fibers calibration results 8 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. FibresensorSensitivityOffsetX2X2 Sens. errorresidues(pm)σ residues(pm) 51 10.01031529.79231.390.00004-0.182.11 20.00991539.91481.700.000040.171.95 30.01081549.67001.160.0000613.7423.70 40.01121559.66061.220.00004-0.943.59 52 10.01041529.73631.430.00005-0.432.65 20.01011539.88581.520.00004-1.182.70 30.01001549.75531.370.00005-0.803.14 40.01121559.66061.220.00004-0.943.59 53 10.01061529.74271.300.00007-0.153.18 20.00981539.95232.830.000031.141.78 30.00991549.71941.380.000060.982.59 40.00951559.73361.390.000070.472.56

9. Temperature + humidity sensitive Fibers calibration results 9 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. FibresensorSensitivityOffsetX2Sens. error residues (pm) σ residues(pm) 38 10.01001529.81237.000.000030.972.16 20.00991539.948139.690.000022.632.05 30.01031549.71357.500.000042.712.80 40.01101559.69835.670.000050.592.90 39 10.01011529.83236.650.000031.192.39 20.01021539.92581.400.000100.204.44 30.01061549.711516.120.000043.272.63 40.01061559.72190.790.000092.553.34

10. Mock-up displacement monitoring — Use four L-shapes in order to measure relative radial displacement in the mock-ups 10 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA.

11. Open issues — Fixation of l-shapes in the mock-up. _ A first position and locking proposal. 11 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA.

12. Open issues for the mock-up — Four L-shapes of four layers for the mock-up in order to measure relative radial displacement. — One of them calibrated ( used for the Test-beam) — The other three must be prepared ( contact sphere must be glued) and calibrated. — Support structures for the L-shapes and temperature humidity sensors must be provided — Define the position of left temperature and humidity sensors. 12 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA.

13. Fo the final application — Define displacement to be measured. _ Relative radial displacement _ Relative diplacement in Z direction ( the problem must be define ( resolution, range, positioning tolerance..) 13 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA. Fiber egress protection 7 mm 3.5 mm 30 mm CFRP L-shape NEW DESIGN OR

14. Questions & Comments ? — Supporting documentation and manual under preparation. — Assuming installation of fibers in the mock-up by end of October. — Installation of L-shapes before december? _ L-shape in order to measure relative radial displacement — For the real application _ Relative displacement to be measured to be define (Radial or in Z direction). In this last case the problem must be defined (range, resolution and positioning dimensional tolerance) 14 moyad@ifca.unican.es, 6th Belle II PXD SVD Workshop, october 1st,2014, PISA.