1. Optical Payload System Facility - OPSys 21 January 2016 OPSYs Status (January 2016)

2. Optical Payload System Facility (OPSys) Overview:

3. Space Optics Calibration Chamber (SPOCC) Overview: Test section, consisting of a cylindrical chamber made of two semi-circular halves split along the chamber longitudinal axis. The overall dimensions are 1080  880  4000 mm 3. The top half can be removed to access the optical bench inside the bottom half. The test section is equipped with an optical table with 4 stepper motor allowing tilts and translations on the table plane; Pipeline section, consisting of two cylindrical tubes with a length of 1850 mm each, hosting all the junctions for the pumping system. The tubes diameter is 400 mm; Sun-simulator section, consisting of a 2550-mm long and 400-mm diameter tube connected to another tube of 2050-mm length and 600-mm diameter. The latter tube hosts the source and the optics of the sun-simulator. Provided with a Vacuum System able to reach 10 -6 mbar

4. Space Optics Calibration Chamber (SPOCC) Overview: Space Optics Calibration Chamber offers services in the following contexts:  pre-flight qualifications or generic items (on-board computers, data handling, flight items, etc..) where is requested Thermal-Vacuum environment;  pre-flight qualifications of scientific instruments and sensors, optical pointing devices, solar panels that have valence optical alignment and problems of solar flux;  calibration and testing scientific optical instruments

5. OPSys Sub-Systems – Vacuum Control Sub-System:  Composed by: 2-stages pumping system consisting of:  Two tri–scroll pumps of 500 l/minute each;  Two turbo molecular pumps of 2000 l/s each. The tri–scroll pumps bring the pressure from atmosphere to 10 -2 mbar. This first phase lasts about half hour. From this vacuum level, the chamber passes from the viscous or laminar regime to the molecular one. At that point, the turbo molecular pumps can be turned on. The turbo molecular pumps bring the pressure to 10 -6 mbar in dynamic vacuum condition hampered by the-out gassing from the internal coating of the chamber. The internal SPOCC pressure (the vacuum level) is monitored by 5 vacuum gauges located in the pumping section and in the test chamber.

6. OPSys Sub-Systems – Clean Rooms:  The clean rooms (ISO 8, 7, 6) have been certified against ECSS-Q-ST-70-01C “Cleanliness and Contamination Control” on December 2015.  ISO 5 clean area will be subject of delta qualification on February 2016 (see later for details)  The air required for venting the ISO 5 and ISO 6 areas is taken from the environment and filtered by filter-ventilating MAC10 modules that filter the air and spread it over to the optical bench.  The air for overpressure returns: to the external environment (ISO 7 area) to return grids located close to the floor Curtain Optical Bench ISO 7 Ceiling Floor Return Grids MAC10 Modules Movie

7. OPSys Sub-Systems – Clean Rooms:  Actually (January 2016) the filtering system of the ISO 5/6 volume is composed by 10 modules type MAC10 IQ 2‘ x 4‘ and the lighting system consists of 2 ceiling lights (protection IP44 4x36W)  The airlock between ISO 8 and ISO5/6 area is provided with a MAC10 element. ISO 8

8. OPSys Sub-Systems – Clean Rooms:  Improvements (February 2016) for ISO 5 area: Installation of two additional MAC10 elements Move the two lights Move the ISO 7 – ISO 5/6 curtain Implementation of an additional curtain Implementation of a return grid on the airlock door between ISO 8 and ISO 5/6 volumes Optical Bench ISO 7 Ceiling Floor Return Grids + 2 MAC10 Modules Move of the curtain Additional curtain

9. OPSys Sub-Systems – Cleaning Monitoring Sub-System:  Parameters continuously monitored in ISO 8, ISO 7 and ISO 5: Air Temperature (°C) Relative Humidity Air Pressure Particle Contamination  In case of anomaly an acoustic/light devices inform the operative personnel.  All the parameters are periodically measured and recorded every minute by the monitoring system.  The KIMO TH 210 humidity and temperature transmitter is able to measure relative and absolute humidity, dew point, wet and dry temperature, and enthalpy.

10. OPSys Sub-Systems – Cleaning Monitoring Sub-System:  The KIMO KIMO CP 111-AN: differential pressure transmitter works in a range between -100 and +100 Pa  The TSI Aerotrak ® Remote Particle Counter Model 7310 has 4 measurement channels (0.3 – 0.5 – 1.0 – 5.0 μm).  The OxyGuard Handy Polaris TGP measures the Oxygen partial pressure in order to check possible accumulation of GN2 (3 items). The TSI Aerotrak ® Remote Particle Counter Model 7310 (Figure 90) has 4 measurement channels (0.3 – 0.5 – 1.0 – 5.0 μm).

11. OPSys Sub-Systems – Thermal Sub-System (METIS dedicated):  Thermal interface requirements for METIS instruments

12. OPSys Sub-Systems – Thermal Sub-System (METIS dedicated):  Thermal sub-system composed by: A cold plate cooled by a pipelines system containing cold liquid nitrogen, necessary to maintain the VL and UV detectors at specified temperatures through thermal straps; the cold plate is also used as cold trap for contamination; the liquid nitrogen is supplied from dewar located in the ISO 7. A copper bar connecting the cold plate to the thermal straps. Two thermal straps connecting the copper bar to the detectors (UVDA and VLDA). Two heaters to set the temperature of the detectors in specified temperature ranges during operational and non-operational cases. Sensors and thermocouples/thermistors to control and monitor temperatures, placed on the METIS/OPSys interfaces, on the cold plate and along the thermal items specified above.

13. Solar Source for SPOCC METIS aperture=  4 cm;

14. SPOCC Configurations Infinite conjugated for A.U. < 0.5 Finite conjugated for A.U. > 0.5

15. Visible-Light Solar Source Configuration1 AU0.5 AU0.3 AU0.38 AU0.5 AU Source ShapeCircle Annulus Source Radius9.6 mm18 mm12 mm8 mm5.5 mm Object NA0.041 0.0260.030.032 Image NA000.0150.0120.009 Obj distance2000 mm 3181.2 mm2788.8 mm2550.1 mm Image distance - (7100 mm) - (7100 mm) 5421.3 mm (Short pipeline) 7100 mm9304 mm

16. Solar Source Interface with SPOCC

17. OPSys Light Sources – VUV Lyman Alpha source:  To simulate the Sun coronal UV radiation at the Lyman-α line of the Hydrogen (121.6 nm) band.  Resonance HheLM-LOT

18. OPSys Light Sources – Hollow cathode Source (mod. 629):  Source of wavelength to be used of generating an emission spectrum (range of radiations emitted depending on the introduced gas).  Main purpose: to carry out tests on the UV and EUV path (e.g. to simulate Sun emissions in the extreme ultraviolet He II Ly α (30.4 nm)).  Model 629 Hollow Cathode Light Source: continuous gas discharge source that can be used with molecular or rare gases.  Electrically quiet and rich source of spectral lines in the extreme UV to at least 20nm (62eV).  The source features a water cooled aluminum anode and stainless cathode.

19. OPSys Light Sources – Monochromator VUV + Grating:  Instrument used when monochromatic optical measures are required.  Main purpose: to execute spectrographic path calibration: the instrument is able to transmit a selected narrow band from a wider range of wavelength available in input (e.g. can be used in order to isolate the Lyman-α line of the hydrogen.  Selected item: 235 McPherson 500 mm focal length Seya-Namioka.  This optical system is housed in a clean stainless steel housing capable of achieving 10 -6 torr vacuum.  It delivers typical resolution of 0.05 nm with a 1200g/mm grating

20. OPSys Light Sources – Monochromator VUV + Grating:

21. OPSys Additional Items (METIS dedicated) :  Collimator Mirror The SPOCC includes a collimating/focusing optical system that can simulate a collimated beam with the sun divergence at the Earth – Sun distance (i.e. 1 A.U.) or a focused beam with sun divergences corresponding to closer distances to the Sun (Solar Orbiter takes METIS closer to the Sun, up to 0.5- 0.3 A.U.) The collimator is a 350-mm, off-axis parabolic mirror of 165 mm diameter and a 4000 mm curvature radius.  Light Trap Collimator Mirror + Light Trap

22. OPSys Additional Items (METIS dedicated) :  Optical Window An optical window is placed at the light sources interface. Two surfaces Anti-reflection coating optimized in the 500 ÷ 700 nm interval  A VAT GateKeeper Series Aluminum Gate Valve is provided for isolating the ambient pressure and high vacuum areas Optical Window + Gate Valve

23. OPSys Additional Items (facility dedicated) :  Calibrated Diode AXUV Purpose: to carry out radiometric multi-wavelength calibration. Selected item: model AXUV100G  Picoammeter Usable in order to perform radiometric calibration of UV and EUV paths. Selected item: Keithley 6485

24. OPSys Additional Items (facility dedicated) :  PMT + MgF2 window + ADC Purpose: to permit radiometric calibration. Selected item: system is composed by the following instruments (supplied by Hamamatsu):  Photomultiplier tube (PMT), model R976;  Counting Unit, model C8855-01;  Photon Counting Unit, model C9744;  High Voltage Power Supply, model C9525-51;  Socket Supply, E678-12A  Channeltron detector + preamplifier Purpose: to detect EUV radiation. Selected item: CEM Series KBL, fabricated from ceramic material that has been processed with CNC controlled milling machine or lathe before sintering.

25. OPSys Additional Items (facility dedicated) :  Thermoelectrically-cooled Quartz Crystal Microbalance - TQCM + controller Purpose: to permit to monitor surface contamination as a function of temperature in the test chamber. Selected item: Model Mark 20 (MK20) Sensor designed to be used in a high-vacuum system  Residual Gas Analyzer Purpose: to evaluate residual gas composition in a vacuum system Selected item: Pfeiffer model QMG220 F1 with iridium filament. The mass molecular range: between 1 and 100 atomic mass unit (amu).

26. OPSys Additional Items (facility dedicated) :  Polarimeter Purpose: Selected item:  Vacuum translator Purpose: to perform precision optical alignment in vacuum Selected item: 8MT167V-100

27. OPSys Additional Items (facility dedicated) :  Electrical and Thermal Feedthroughs Feedthroughs from ISO 7 side of SPOCC: 1.Inlet/Outlet of pipelines for the liquid nitrogen circuit used in the thermal subsystem. 2.Passage of the electrical connectors of the motors for the optical bench adjustment. 3.Positioning of flange with two bulkheads DM5623-37-2PP (AWG16) 24-pin used for EGSE power connector interface. 4.Positioning of flange with two bulkheads DM5623-37-PP (AWG20) 37-pin used for EGSE data connector interface. Feedthroughs from ISO 8 side of SPOCC: 5.Passage of pipelines with gaseous nitrogen used for the SPOCC cleanliness and for METIS hardware flushing 6.Passage of the two electrical connectors for the thermal subsystem. 7.Passage of three 9-pin electrical connector (9 pin) used to connect mechanical devices. 8.Passage of 4 BNC and 2 High Voltage connectors for the photomultiplier and the channeltron detector.

28. OPSys Additional Items (facility dedicated) :  Vision IsoStation Purpose: working bench, docking surface to keep the METIS items and breadboard atop the frame. Selected item: M-VIS3648-SG4-325A, metric 900 mm x 1200 mm x 909 mm working height, vibration isolation workstation with a 110 mm thick SG Series breadboard and I-325 Series pneumatic isolators that provide a 590 kg gross load capacity  Laminar Flux Bench Purpose: used for manipulation of critical instruments/elements avoiding contamination Selected item: Aura HZ 48

29. OPSys Additional Items (facility dedicated) :  PC Desktop Purpose: to control and monitor the activities to be performed in ISO 8, i.e.:  control and regulation of the Motorized Optical Bench;  monitoring environmental parameters (pressure, temperature, particles) of ISO 5, ISO 6, ISO 7 and ISO 8 rooms;  monitoring of pressure inside SPOCC;  control of auxiliary equipment Selected item:.............

30. OPSys Additional Items (facility dedicated) :  ISO 7 Lifting device Purpose: to handle of the items inside ISO 7, ISO 5 areas of the OPSys facility. Selected item: SL/20; maximum load capacity up to 2000 kg.  ISO 8 Lifting device Purpose: to handle of the items inside ISO 8. Selected item: SC 500; maximum load capacity 500 kg.

31. OPSys Data and Phone connections :  All data connections are connected to the ALTEC Guest Network.  Connection between Guest Access Switch and Guest Core Switch is based on Fiber Channel Technology. All services provided by the ALTEC Guest network are available only after the authentication.  The patch panel with RJ-45 located on the OPSys facility can be used both with phone plug (4 pin) and ethernet plug (8 pin). RJ-45 Patch Panel

32. OPSys Layout: