1. Deployment Test Program P.Kooijman

2. Goal of tests Validation of the LOM deployment – Has had three previous tests – First included rudimentary cable – Second and third no cable – Tests of the dynamics of unfurling Validation of the VEOC during deployment – Tests on placement in LOM – Tests on method of introducing slack in cable – Tests of continuity of copper – Tests of attenuation in fibres Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 2

3. Previous campaigns – preparation December 2009 – off the coast of Pylos at 800 m January 2011 – off the coast of Pylos LOM transport by road LOM on Ship Anchor with LOM seat Launching vehicle placed on launching platform on the anchor 3 cables keep the launching vehicle fixed to the platform Loops of the cables fixed with acoustic release Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 3

4. Previous campaigns -- Deployment Total weight in air 2265 kg (Full LOM 1170 kg) Descend at ~0.40 m/s Acoustic release of deployment cable Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 4

5. Previous campaigns – Deployment Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 5

6. Previous campaigns – Release Launching vehicle is acoustically released Acoustic release floats to the surface Launching vehicle unwinds mooring to its full length (~1.2 m/s) Initial force on the ropes 5700 N, final force on the ropes 3900 N Launching vehicle floats to the surface Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 6

7. Previous campaigns –recovery LOM Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 7

8. Previous Campaigns – Recovery String Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 8

9. Planned campaign Deployment campaign in Mediterranean Sea Dates: 01/04 to 15/04 2013 Place: Off the coast of Motril, Spain Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 9

10. Dynamics tests – all deployments All deployments will have the following devices – 3D compass – 3D static accelerometers – Placed on each sphere – Read out at 5 Hz – Autonomous easily accessible – Allows for complete 3D reconstruction of the rotations of each sphere All deployments will be inspected with ROV Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 10

11. Analysis Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 11

12. Test – I : Dynamics of Deployment Cable contains only copper wire – Easier to produce – Cheaper – Same mechanical properties – Made of two halves: Top (T) and Bottom (B) Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 12

13. Measurements-I 3D measurements of spheres Continuity of copper – sampled in time – If a break occurs we know when it occurs Pressure difference at top and bottom of two halves – Previous measurements had compensation pistons – Calculations show they are not necessary  measure Three sphere “exits” will be filmed – Each deployment 3 different positions in the LOM will be recorded Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 13

14. Test-II: Fibre-optics Validation When satisfied on test-I Deployment with Cable with fibre optics Major measurement is the attenuation of fibres  continuous readout during deployment 3D measurements and cameras Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 14

15. DateActivity 01-04Arrival Pelagia in Motril 02-04Unload and installation of shore workshop 03-04Deployment of LOM-1 –T=copper, B=copper 04-04Deployment of LOM-2– T=copper, B=copper 05-04Deployment of LOM-1–T=copper, B=copper 06-04Deployment of LOM-2– T=copper, B=copper 07-04Deployment of LOM-1 –T=copper, B=copper 08-04Deployment of LOM-2– T=copper, B=copper 09-04Deployment of LOM-1 – T=copper + Fiber, B=copper 10-04Check of fibre results/Spare 11-04Deployment of LOM-2 – T=copper, B=copper+ Fiber 12-04Deployment of LOM-1 – T=copper+ Fiber, B=copper+ Fiber 13-04To Toulon 14-04To Toulon 15-04To Toulon Schedule – Overall Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 15

16. TimeShip Activity 18:00Unloading LOM and spheres and cable from ship and loading of LOM on Ship 21:00Sailing Motril  Deployment site 23:00Preparation for deployment / sleep 06:00Deployment of U-anchor and LOM 09:00Release of String and recovery of LOM 10:00Leave string for test period 12:00Recovery of U and string anchor 14:00Recovery of string 16:00Sailing Deployment site  Motril Daily schedule Shore crew activity Remove 3D measurement devices and extract data Replace devices Open camera spheres and replace batteries and data cards Close camera spheres Check all spheres for damage replace if necessary Load LOM with spheres and relevant cable Analyse the data Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 16

17. Manpower Ships crew NIOZ et al.7 Nikhef3 Others3 Ships crew NIOZ et al.4 Nikhef4 Others?? Volunteers are happily accepted, contact me (h84@nikhef.nl) or Hans van Haren (Hans.van.Haren@nioz.nl)h84@nikhef.nl Space on ship is limited and there Medical and Safety requirements Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 17

18. Conclusions Will learn lots in the 14 day campaign Tight schedule Anyone want to join? Marseille, 29-31 January 2013 KM3NeT Collaboration meeting -- Deployment Test Program 18