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RICE-II Engineering & Deployment

RICE-II Engineering & Deployment. Kenneth Ratzlaff, John Ledford Instrumentation Design Lab The University of Kansas. RICE-II System Plan. 2005-2006 Goals. Wet Hole Goals (in cooperation with IceCube.) Demonstrate effectiveness of ADSS cable and document possible failures

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RICE-II Engineering & Deployment

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  1. RICE-IIEngineering & Deployment Kenneth Ratzlaff, John Ledford Instrumentation Design Lab The University of Kansas

  2. RICE-II System Plan

  3. 2005-2006 Goals • Wet Hole Goals (in cooperation with IceCube.) • Demonstrate effectiveness of ADSS cable and document possible failures • Install the Array Calibration Unit – an antenna to “ping” the RICE-I array and the future RICE-II array. • Dry Hole Goals (separate from IceCube) • Demonstrate the effectiveness of using OF analog transmitters and receivers. • Test the Utility (Monitor, Test & Control) system in Antarctic conditions.

  4. RICE-II Wet Hole Plan

  5. ACU Control • ACU control via SP ethernet to MAPO • OR via DIP switches

  6. Fiber Testing • An OTDR trace has been recorded for each fiber. • During re-freeze, OTDR traces will be collected periodically of all the fibers.

  7. Dry Hole Plan

  8. RICE-II Shipping Plan • Removable screws marked in red. (Requires screw gun.) • Two reels for wet holes, SRC1, SRC2. Reel + Pallet, 550 lb. each. • Positioned with chocks; held down with aircraft cable and turnbuckle. • SRC5 contains reel stand, shaft components, brake components, tape, carabineers, Allen keys.

  9. Cable • SRC1: two ADSS (All Dielectric Self-Supporting) cables and a shielded quad, taped as a bundle. • One ADSS cable is terminated in a cluster housing with OF coiled inside. • The second ADSS cable is terminated together with a shielded quad in a housing that will be replaced with a housing holding the ACU. • SRC2: two ADSS cables terminated in cluster housings

  10. Deployment Plan -- Mounting • Reel may be brought to site by fork-lift on pallet (preferred) or via straps. • Reel (~330 lb) is lifted from the pallet with straps through the holes.

  11. Deployment Plan -- Shaft • Stand can be carried by two people or lifted with carabineers through holes (if reel is mounted, lift by the reel.) • Mount flanges to reel with lag bolts. • Slip on bearings and lay in cradles (may be lifted by fork lift with straps or by 4 people with steel rods.) • Secure bearing block with Allen wrench.

  12. Deployment – Installing Stand • The stand is to be positioned in place of one of the hose reels. • The anchors for the hose reel will be used to anchor the stand via heavy-duty carabineers.

  13. Prepare Cluster Housing • Cluster housing must be removed from the wall (Phillips driver). • One of the four housing bodies must be removed from the head and replaced with a body having an ACU module.

  14. Deployment – Cable Prep • The brake on the stand will be set to provide about 30 lb of drag – enough to ensure that if the pull stops abruptly, the cable will remain taut and the reel will not freewheel. • The cable will be fed to an available sheave and taped down awaiting deployment into the hole.

  15. Deployment Readiness • The brake will be adjusted to keep the cable taut after cluster is taped and awaiting cable deployment.

  16. Cable in Deployment With 200 m of IC cable remaining, braking is reduced and cable-bundle is taped to IC cable. After several tapings, the brake is increased to 150 lb.

  17. Disconnect terminal end • When the cable reaches the end, the lag bolts are removed from the clamp and the terminations are carefully removed from the tube. The remaining 30 m of cable then must be unreeled.

  18. Top Termination • End of cable co-deployed to IceTop trench.

  19. Support -- IceCube • Anchors for the reel stand. • Direction where to tape cable on the tower while awaiting deployment. • Stop at 200 m to bring RICE cable to the top of the hole and securely tape the cables together. • Allow cables to be taped together every 10 meters. • Hand tools: screwdriver, screw gun, socket wrench, etc. • Make a quad in the IC surface cable available in the Surface Junction Box and the Counting House.

  20. Support -- RPSC • Deliver pallets to the drill location. • Move cable with shaft installed onto the stand as necessary. • Provide a shelter for the post-deployment testing. >5C needed for the OTDR. • Ethernet backbone access for the ACU controller and computer in MAPO with fixed IP Numbers. • Compliance with routers or firewalls for Port 1234

  21. Readiness • Reel Stand (with bolts, carabineers, tape, Allen keys, etc.), cables shipped; in CA on 10/21/05. • New Reel Stand braking system in progress. • ACU circuit and controller circuit under construction. Programming partially complete • The cluster housing for the ACU yet to be fabricated. • Quad extension, from location of IC cable penetration of counting house to the ACU controller location, is ready to be built.

  22. Instrumentation Design -- ACU

  23. Instrumentation Design ACU Controller -1

  24. Instrumentation Design ACU Controller -2

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