Rare Isotope Accelerator (RIA) Remote Maintenance Concepts Dave Conner Oak Ridge National Laboratory RIA R&D Participants: Argonne National Lab: J. Nolen

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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ANS FEB 14, 2006

A Possible RIA Site Layout

ACCELERATORTARGET BUILDING

EXPERIMENTAL AREAS

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SNS SERVICE BAY

RIA TARGET BAY

Size Comparison

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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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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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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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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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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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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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FLIGHT TUBE

BEAM DIANOSTICS

LI TARGET

QUADRAPOLE SET

DIPOLE

BEAM DUMP

SHIELDING

Fragmentation Target

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Beam Dump Removal

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ISOL Target Configuration

BEAM WINDOW TARGET BEAM DUMP

CONCRETE SHIELDING

STEEL SHIELDING

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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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Module Design

- MOST FREQUENTLY CHANGED COMPONENT

- WINDOW WORKSTATION TASK

- MULTIPLE CONNECTIONS

- ACCESS AND LIFTING CONSTRAINTS

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Shielded Hot-Cell

SHIELDED MODULE MAINTENANCE HOT-CELL

-MINIMIZES COMPONENT EXPOSURES

-- MINIMIZES LOOSE CONTAMINATION

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ISOL Target Video

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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

Documents

Rare Isotope Accelerator (RIA) Remote Maintenance Concepts Dave Conner Oak Ridge National Laboratory RIA R&D Participants: Argonne National Lab: J. Nolen