1. Rare Isotope Accelerator (RIA) Remote Maintenance Concepts Dave Conner Oak Ridge National Laboratory RIA R&D Participants: Argonne National Lab: J. Nolen Lawrence Berkley Nation Lab: L. Heilbronn Lawrence Livermore National Lab: L. Ahle, J. Boles, S. Reyes, W. Stein Los Alamos National Laboratory: Dave Viera Michigan State University: I. Baek, G. Bollen, M. Hausmann, D. Lawton, P. Mantica, D. Morrissey, R. Ronningen, B. Sherrill, A. Zeller Oak Ridge National Lab: J. Beene, T. Burgess, D. Conner, T. Gabriel, I. Remec, M. Wendel

2. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 2 RIA Overview  RIA will be a basic science user facility producing high-energy particle beams of rare isotopes for nuclear physics research.  Accelerator – Super-conducting, continuous beam, linac capable of accelerating all ions from protons through uranium nuclei.  Targets – Isotope Separation on Line (ISOL) and Fragmentation in flight  Fragmentation method involves colliding a heavy ion into a low-Z target material. The resulting spread of particles is passed through a magnetic field which directs the isotope of interest into the experimental area while the remaining hit a beam dump.  ISOL method uses a high density target material bombarded with a proton beam. The resulting particles are quickly ionized and directed into the experimental area.  Design Philosophy – Multiple target stations  Maximizes availability of the facility  System capable of remote change with active beam on adjacent target  Control background radiation and contamination to allow for personnel access into target bay with beam off.  Project Status – Approximately half way into a 3 year R&D cycle including efforts in the areas of beam simulation, linac design, target design, shielding simulations, and remote maintenance considerations.

3. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 3 A Possible RIA Site Layout ACCELERATOR TARGET BUILDING EXPERIMENTAL AREAS

4. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 4 SNS SERVICE BAY RIA TARGET BAY Size Comparison

5. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 5 75m x 19.5m FRAGMENTATION TARGETS TRANSFER CELL CLEAN MAINT. STORAGE AREA WASTE DISPOSAL AREA ISOL TARGETS HOTCELL AREA RIA Target Gallery Layout

6. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 6 Requirements for RIA Target Building Remote Maintenance  Large Hot Cell Remote Handling Equipment  50 and 100 Ton Cranes  Large Hot Cell Configuration and Function  75m x 20m x 13m  Areas separated by shield doors  Component Design for Remote Handling  “Beam On” target changes  Activation,radiation damage of components  Remote Tooling  Lifting fixtures  Special couplings

7. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 7  Overhead bridge crane is mounted above the servo bridge  Servomanipulator and transporter with Aux hoist must be able to pass bridge crane to operate on both sides of the hook  Retrieving tools and lift fixtures is difficult and time consuming  RIA will require multiple cranes and servo systems to provide backup and reduce turn-around times. Crane and Servomanipulator Combinations

8. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 8 Bridge Mounted Servomanipulator  Advantages:  Highly dexterous handling  Force reflecting  5 to 8 X hands-on task times  Reduces need and cost of special remote handling features on components  Moderately powerful  Disadvantages:  Expensive  Complex and potentially unreliable  Mechanically compliant arm limits positioning accuracy in robotic mode

9. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 9 Identification of Tasks Remote handling tasks must be identified early; the task list is the basis of design for the RH system and the components Frag componentRH class Expected Frequency (years) Refurb or waste? Spare Maintenance /changeout time*(days) Beam diagnostic module10.5RY2 Target module11 –8 weeksRY2 Target vacuum box210WN30 Triplet 12>10WN>60 D1 field probe10.5WY5 D1 liner or winding210WN60 D1 vacuum box2>10WN>60 Beam dump10.5RY2 Multipole2>10WN60 Beam window11WY5 Triplet 22>10WN>60 Wedge1WeeklyStoredN<1 Vacuum pumps12RY5

10. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 10 HIGH BAY AREA DUAL SERVOMANIPULATORS (SHOWN IN STORAGE POSITION) TRANSFER CELL (HANDS ON MAINT.) BASEMENT/ WASTE DISPOSAL INCELL SHIELD DOORS ISOL TARGET STATIONS FRAGMENTATION TARGET STATIONS FRAG MAINTENANCE AREA 50 TON GALLERY CRANE 100 TON HIGHBAY CRANE RIA Target Building

11. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 11 FLIGHT TUBE BEAM DIANOSTICS LI TARGET QUADRAPOLE SET DIPOLE BEAM DUMP SHIELDING Fragmentation Target

12. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 12 Beam Dump Removal

13. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 13 ISOL Target Configuration BEAM WINDOW TARGET BEAM DUMP CONCRETE SHIELDING STEEL SHIELDING

14. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 14 HEAVY WATER JUMPERS POWER / INSTR JUMPERS GAS FLEXIBLE HOSES THERMOCOUPLE CONNECTORS LIFTING FEATURES SPRING LOADED CAPTURED BOLTS LIGHT WATER JUMPERS ISOL Target Utilities TURBO VACUUM PUMPS

15. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 15 Module Design - MOST FREQUENTLY CHANGED COMPONENT - WINDOW WORKSTATION TASK - MULTIPLE CONNECTIONS - ACCESS AND LIFTING CONSTRAINTS

16. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 16 Shielded Hot-Cell SHIELDED MODULE MAINTENANCE HOT-CELL -MINIMIZES COMPONENT EXPOSURES -- MINIMIZES LOOSE CONTAMINATION

17. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 17 ISOL Target Video

18. O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY ANS FEB 14, 2006 18 RIA Continuing Efforts  Define and adapt utility connections for remote maintenance as target designs evolve  Estimate component lifetimes with more accuracy as activation simulations become available  Define an operational senario and schedule normal work flow  Specify the requirements for the mobile workstations needed to perform the above work on schedule (loads, speeds, etc)  Define the number, location and type of cameras needed for the system  Design unique couplings and tooling required for the large components