1. SPS movable table Joanna Swieszek, Kurt Artoos (EN-MME) 14/04/2016

2. Strategy Subcontracting Overall strategy: Write a technical/ functional specification and tender to a company: The study and design The machining, component purchasing, assembly Implementation controller Complete factory testing with payload masses Installation and commissioning in SPS tunnel EDMS:1612033

3. Technical Specification PAYLOAD + external forces, position and integration The payload, different components to be mounted on table + distribution Fixture of the payload components on the table The available 3D space for the table, foot-print on the tunnel floor, fixture on floor List the presence of external forces acting on the transfer table: vacuum forces, bellow stiffness,.. The position and available space for the controller hardware, cable length to the table Operational Parameters The trajectory with required accuracy, precision and resolution for 6 dimensions, number of d.o.f. The operational requirements, the (remote) control requirements, service mode and degraded operation modes, repair and debugging requirements Installation and commisioning parameters The transport volume and restriction for installing the table + installing the components on the table (confirm that with the design of the components cryo module, service module,…) List the available services electricity, LAN, …. Required documentation and training Factory testing and CERN testing Environment, reliability and safety Environmental conditions : Radiation, temperature, relative humidity, presence of dust Mechanical design and safety : standards, analysis, protection devices Maintenance and intervention requirements Failure mode and effect analysis Schedule EDMS:1612033

4. Integration 3D integration model ST0719993 SPS point 6 RF circulators on cryomodule LSS6 ST0735446 (informative only) Attention: Preliminary model, placement of elements, available space for a table (5000x2175x440) Consideration to increase length of table Recent changes: Y chamber smaller angle, longer chambers Frame with water distribution + coax support Vacuum valves + supports on table Emile Grospelier EDMS:1612033

5. HOM loads 32 kg (with the supports) Dimensions 800 mm x 300 mm x 400 mm. + 6 HOM loads (3 HOM per one DQW cavity) EDMS:1612033

6. HOM loads position possibilities But to be discussed with the integration of the RF cables EDMS:1612033

7. PAYLOAD Load estimation of components + cables + chassis support for circulators + chassis support for loads Position on the table to be defined Locate centre of mass of components (next slide) Locate the support points on the table top plate Introduce a % uncertainty for mass + centre of mass location EDMS:1612033

8. Center of gravity EDMS:1612033

9. Position of the components EDMS:1612033

10. Installation of components on the table 2 X Hubtex Michal Czech EN/HE/HH Under discussion, Difficulty: Range only to place on edge of the table Not precise enough to put on the jacks Consequence: we have to be able to roll components over the table top plate EDMS:1612033

11. Preliminary feasibilty study table top First rough guess/ check for the load carrying capacity (no «results» yet) Will be continued to verify: Reasonable to roll the loads everywhere on the table ? Distributed load, point loads from wheels What kind of stiffness/ maximum deformations can we ask for in the specification? Alternative idea: use of ball conveyors to distribute the loads EDMS:1612033

12. General information horizontal movements (translation) between two defined positions away from each other by 510 mm parking position: the straight vacuum chamber must be aligned in the SPS machine experiment position: the cryomodule must be aligned in the SPS machine alignment of the components at the position of the beam axis should be reproducible for the 6 degrees of freedom with high precision No beam alignment done by the table DescriptionValue Horizontal precision±50 μm Vertical precision±50 μm Angle around x (pitch)±330 μrad Angle around z (yaw)±330 μrad Requirements to be confirmed EDMS:1612033

13. Velocity/ accelerations 510 mm/ 10 minutes or 0.85 mm/sec Very low accelerations, should be not a problem if we avoid mechanical blockage. To be done: estimate with some lead screws/balls screws the combination gear ratio/ torque, self locking, step frequency over longer cables. Remark : What determines the maximum allowable accelerations : the mechanical/ alignment integrity or the angle of the helium level ? EDMS:1612033

14. Technical Specification next steps PAYLOAD + external forces, position and integration The payload, different components to be mounted on table + distribution Fixture of the payload components on the table The available 3D space for the table, foot-print on the tunnel floor, fixture on floor List the presence of external forces acting on the transfer table: vacuum forces, bellow stiffness,.. The position and available space for the controller hardware, cable length to the table Operational Parameters The trajectory with required accuracy, precision and resolution for 6 dimensions, number of d.o.f. The operational requirements, the (remote) control requirements, service mode and degraded operation modes, repair and debugging requirements Installation and commisioning parameters The transport volume and restriction for installing the table + installing the components on the table (confirm that with the design of the components cryo module, service module,…) List the available services electricity, LAN, …. Required documentation and training Factory testing and CERN testing Environment, reliability and safety Environmental conditions : Radiation, temperature, relative humidity, presence of dust Mechanical design and safety : standards, analysis, protection devices Maintenance and intervention requirements Failure mode and effect analysis Design the support jacks Start exchange with RF/control Transport HE + lifting points Define services/ cables to be installed contact HSE EDMS:1612033

15. More information and documentation https://edms.cern.ch/document/1609821 Technical Specification: EDMS:1612033