rare isotope accelerator (ria) remote maintenance concepts dave conner oak ridge national laboratory...
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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
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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.
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
A Possible RIA Site Layout
ACCELERATORTARGET BUILDING
EXPERIMENTAL AREAS
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
SNS SERVICE BAY
RIA TARGET BAY
Size Comparison
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
75m x 19.5m
FRAGMENTATION TARGETS
TRANSFER CELL
CLEAN MAINT.STORAGE AREA
WASTE DISPOSAL AREA
ISOL TARGETS
HOTCELL AREA
RIA Target Gallery Layout
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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 component RH classExpected
Frequency (years)
Refurb orwaste?
SpareMaintenance/changeout time*(days)
Beam diagnostic module 1 0.5 R Y 2
Target module 1 1 –8 weeks R Y 2
Target vacuum box 2 10 W N 30
Triplet 1 2 >10 W N >60
D1 field probe 1 0.5 W Y 5
D1 liner or winding 2 10 W N 60
D1 vacuum box 2 >10 W N >60
Beam dump 1 0.5 R Y 2
Multipole 2 >10 W N 60
Beam window 1 1 W Y 5
Triplet 2 2 >10 W N >60
Wedge 1 Weekly Stored N <1
Vacuum pumps 1 2 R Y 5
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
FLIGHT TUBE
BEAM DIANOSTICS
LI TARGET
QUADRAPOLE SET
DIPOLE
BEAM DUMP
SHIELDING
Fragmentation Target
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
Beam Dump Removal
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
ISOL Target Configuration
BEAM WINDOW TARGET BEAM DUMP
CONCRETE SHIELDING
STEEL SHIELDING
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
Module Design
- MOST FREQUENTLY CHANGED COMPONENT
- WINDOW WORKSTATION TASK
- MULTIPLE CONNECTIONS
- ACCESS AND LIFTING CONSTRAINTS
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
Shielded Hot-Cell
SHIELDED MODULE MAINTENANCE HOT-CELL
-MINIMIZES COMPONENT EXPOSURES
-- MINIMIZES LOOSE CONTAMINATION
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
ISOL Target Video
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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY
ANS FEB 14, 2006
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