specification for ariel building pierre bricault triumf...
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Specification for ARIEL BuildingPierre Bricault
TRIUMFAbstract:This document gives the specification for the ARIEL building from the point of view of the tar-get stations, remote handling, hot-cell, conditioning stations, storage, front end and pre-separator optics.
ARIEL specification 2009 August 10
...........................................................................................................Definition of the terms used 4
................................................................Target Station Mode of Operation and specifications 5
.....................................................Interrelation of the services between the two target stations 6
.........................................................................................................................................Electrical 6
.............................................................................................................................Laser ion source 6
.................................................................................................................BL4N, electron - proton 6
..........................................................................................................Electron beam specification 7
......................................................................................................................................Diagnostics 7
....................................................................................................................................Proton beam 7
.................................................................................................................................Electron beam 7
.........................................................................................................................Proton beam dump 8
..........................................................................................................................................Shielding 8
................................................................................................................................Target Stations 8
............................................................................................................................Target Station #1 8
............................................................................................................................Target Station #2 9
..........................................................................................................................................Hot-cells 9
.......................................................................................................Hot-cell for Target exchange 10
.............................................................................................................Hot-cell for Maintenance 10
.............................................................Requirement for Remote Handling Serviceable Items 10
.............................................................................................................................................Crane 10
.......................................................................................................................................Coverage 10
................................................................................................................................Specifications 10
..............................................................................................................................Faraday Cages 11
...................................................................................................................................Laser Room 12
Target/ion source fabrication and release procedure 2024-Nov-09
..................................................................................................................Power Supplies Room 12
.............................................................................................Target station cooling requirement 12
............................................................................................................ARIEL east target station 12
...........................................................................................................ARIEL west target station 13
..............................................................................................................Radioactive Gas storage 13
.......................................................................Technical Requirements for ARIEL Target Hall 13
................................................................................................................................................Fire 13
......................................................................................................................Nuclear Ventilation 13
............................................................................................Water Cooling System and Control 16
.............................................................................................................................Access Protocol 17
................................................................................................................Wall and Floor Surface 17
..............................................................................................................Decontamination facility 17
.............................................................................Remote Handling Manipulator Repair Area 17
...........................................................................Steam/water Decontamination for target hall 17
..................................................................................................................ARIEL Building View 18
ARIEL specification 2009 August 10
1. Definition of the terms used
ARIEL: ?Target Station: Envelope that comprises the target module, beam dump, driver beam en-
trance diagnostics,
Item Definition
Target Station Envelope that comprises the target module, beam dump, driver entrance diagnostics, front end optics and pre-separator.
Target Module, TM Assembly of the shielding plug, target containment box, source tray, service tray and service cap.
Beam Dump
Entrance Diagnostics The entrance diagnostics comprise, profile monitor, target protect monitor and beam collimator.
Front End Optics Optics elements used to prepare the beam for the mass analy-sis by the pre-separator.
Target containment box This is the box that contain the target.
Source tray This is the tray that supports the target/ion source assembly and all the necessary services, cooling and electrical.
Service tray This is the tray that bring the services, cooling and electrical, from the service cap to the source tray.
Service cap This is the area where the cooling and electrical connection are routed from the external and the service tray.
High Active Water Cooling System
Low Active Water Cooling System
Raw Water cooling System
Exhaust Storage System
Decay Tank
Vacuum Roughing System
Vacuum Backing System
Target/ion source fabrication and release procedure
Item Definition
Spent target
Spent Target Storage Vault
Target Exchange Hot-Cell
Maintenance Hot-Cell
Hot-Cell Service Area
Hot-Cell Ante Room
Target Hall
Target Hall Access Area
Over Head Remote Handling Crane
2. Target Station Mode of Operation and specifications
We are planning to have two new target stations build in the new ARIEL building in two phases. The first target target station will be constructed during the 2010-2015, five year plan, and the second one during the next five year plan, (2015-2020).
The first target station must be operational with electron beam in July 2013 and with pro-ton by 2015. The delay between the readiness of the electron and proton has nothing to do with the target station, it come from when the proton beam line will be ready.
In the mean time converter development study will be conducted in the second target sta-tion area. There a need to have the shielding between the two target stations adequate to allow the developemnt work to proceed while delivering rare isotope beams to experiments from the first target station. Table 1 summarises the milestones.
ARIEL specification 2009 August 10
Table 1 -- Time line for the target stations
Date Electron on Target ( mA )Electron on Target ( mA ) Proton on Target ( µA )
East Target West Target East Target
July 2013 0.001 - -
April 2015 0.002 - 10
September 2015 idem - 10-100
July 2018 idem 0.002 200
September 2018 idem 0.005 idem
April 2020 idem 0.010 idem
The east target station will be designed to accommodate both electron and proton beams and will be operational for electron beam in July 2013. The proton beam line will be installed and commissioned by April 2015. Low proton beam current operation period is envisaged until the finalisation of cyclotron upgrade allowing up the current to 200 µA by September 2018.
The second target station will be devoted to electron beam only. The west target station will be ready by July 2018 and we will ramp up the electron current to 10 mA by the end of the second 5 year plan.
2.1. Interrelation of the services between the two target stations
Since we want to operate both target stations completely independent of each other the services must be completely independent. This means no interconnection between the services like cooling water, vacuum system, electrical and nuclear ventilation.
2.2. Electrical
Each target station will have its own Faraday cage and the optics of the front end will be independent of each other.
2.3. Laser ion source
We will have one laser ion source lab from where we can have two routes to the front end pre-separator.
3. BL4N, electron - proton
3.1. Proton Beam specification
The proton beam energy must be between 450 to 500 MeV.
Target/ion source fabrication and release procedure
The proton beam line must be capable to transport up to 250 µA with proton beam intensity losses less than 1 nA/m.
The proton beam line must be achromatic in position at the centre of the target.
The proton beam spot must be fully adjustable between 2 to 10 mm.
The proton beam rotation on the target is specified by the radius of rotation, the diameter of the proton beam spot and the frequency:
Radius: 10 mm
Diameter Beam spot: 4mm
Frequency: 250 - 500 Hz
3.2. Electron beam specification
The electron bean energy can vary between 25 and 75 MeV.
Electron beam line must be doubly achromatic, position and angle on the converter.
The 100 kW electron beam spot must be de-focussed and have a 10 mm in diameter.
The 500 kW electron beam spot must be de-focussed and have a uniform pattern of 20 mm in diameter.
The electron beam rotation on the target is specified by the radius of rotation, the diameter of the proton beam spot and the frequency:
Radius: 10 mm
Diameter Beam spot: 4mm
Frequency: 500 - 1500 Hz
3.3. Diagnostics
3.3.1. Proton beam
The proton beam line diagnostics in front of the target are the following;
Scanning wire 1 m upstream of the target,
Halo monitor 0.8 m upstream of the target,
Halo monitor on board of the target assembly or less than 0.01 m upstream of the target.
3.3.2. Electron beam
The electron beam line diagnostics are the following:
Beam profile monitor at least 0.5 m upstream of the target,
Halo monitor at least 0.5 m upstream and at the converter.
ARIEL specification 2009 August 10
3.4. Proton beam dump
The proton beam dump must accept proton beam up to 500 MeV and 250 µA. The beam dump must be desisgned such that it can serviceable remotely. The cooling and services to be connected and disconnected remotely.
3.5. Shielding
• The shielding surrounding the beam line should accommodate a beam loss of 1nA per m.• The shielding surrounding the proton target should accommodate a 500 MeV proton beam in-
tensity of 200µA.• The shielding surrounding the electron target should accommodate a 75 MeV electron beam
intensity of 10 mA.• The shielding should also accommodate the operation of either target while the other is under
maintenance.• The shielding blocks over the target module should be on rail to allow access to the target mod-
ule by the remote manipulator.
4. Target Stations
4.1. Target Station #1
The first target station to be operational in July 2013 and it must be compatible with 100 kW of electron beam and 100 kW of proton beam.
The target station is given in sketch 1.
Target/ion source fabrication and release procedure
Fig. 1 -- Proton and electron Target station layout.
4.2. Target Station #2
The second target station will be operational in July 2018 in the 2015-2020 5YP and it will be dedicated for the electron beam only. The design will accommodate 500 kW of electron beam power. In the 2010-2015 5YP we will use the space as a converter development test bed.
5. Hot-cells
As with ISAC-I we will have two hot-cells for the target exchange and for maintenance of the different active components, target modules, optics, diagnostics, etc...
Target Module, TM
Proton Beam Dump
Entrance Diagnostics
Front end optics,Slit, FC, Beam, Profile
Pre-separator Magnet
Pre-Separator, Image focal plane, Slit, FC, Beam Profile
ARIEL specification 2009 August 10
5.1. Hot-cell for Target exchange
The hot-cell for target exchange will be similar to the one we are developing presently for ISAC-I. The target module is inserted from the top of the hot-cell into a double wall box. A seal is applied on the face which has the port access to the target/ion source assembly avoiding con-tamination of the exterior walls of the target module. A manipulator removes the target/ion source assembly and replace it by a fresh one.
The spent target is then inserted into a sealed bucket and transfer to the storage vault.
The size of the hot-cell will be similar to the actual ho-cell. It requires about 4 m in front for the insertion and removal of the manipulator arms for maintenance or repair.
5.2. Hot-cell for Maintenance
The size of the hot-cell will be similar to the actual ho-cell. It requires about 4 m in front for the insertion and removal of the manipulator arms for maintenance or repair.
6. Requirement for Remote Handling Serviceable Items
To service the beam lines and the target station we are planning to have a remote handling manipulator that will be attached to the overhead crane. The remote handling manipulator need a space of 1.5 m on each side of the beam line centre.
The manipulator will service the following items:• Heavy-Ions Front-end Optics• Heavy-Ions Front-end Diagnostics• Front end vacuum• Object Slit• Image Slit• Laser Optics, window and prism• Proton Entrance diagnostics• Proton Beam dump
6.1. Crane
6.1.1. Coverage
The crane cover the full east-west and north-south building foot print with the exception of a distance of .75 m from the walls.
6.1.2. Specifications
Item
Lifting capacity 10 T 2
Lifting Speed 1 mm/s to 100 mm/s
Control drive x-y-z
Target/ion source fabrication and release procedure
Item
Rotation 360º
Positioning precision 2 mm
Tilt indicator 1 degree
Lifting indicator 10 kg precision
7. Faraday Cages
The target stations have to operate independently of each other. This means that each target station will have its own set of services in particular the Faraday cage.
Faraday cages sizes are 3 by 4 m with a ceiling height of 2.5 m.
ARIEL specification 2009 August 10
Table -- Faraday Cage Power requirement
Items Power kVA
Ion Source (ECR) 38,400
Target Heater 19,680
Transfer Tube and Cathode 4,500
Optics on board Target Module 7,500
Extraction Electrode 1
RFQ-LIS 400
RF drivers 20
Total power input 70,501
Air conditioning requirement: The two Faraday cages air conditioning capacity for one Faraday cage is 50 kW each.
8. Laser Room
The laser room size 4 meters wide by 6 meter long and 3 m in height. The input power in the la-ser room is 30 kW. The operating temperature between 20ºC and 25 ºC with a stability of 0.5ºC over 12 Hours.
Air conditioning requirement:
The laser room air conditioning capacity is 30 kW and to avoid condensation on the laser crystal the air flow has to be continuous.
9. Power Supplies Room
The power supply room must be located in such a way it will be accessible during beam on for both the proton and electron. The number of power supply and their power is not known at the moment. So the install power and air conditioning specification cannot be established in the moment. We need a final version of the beam optics to calculate the amount of power that will be required.
10. Target station cooling requirement
10.1. ARIEL east target station
The ARIEL east target station will be the first operational station. It will receive 50 MeV- 2 mA electron beam and up to 500 MeV- 250 µA proton beam. The cooling requirement for this target station is 125 kW from the proton beam and 100 kW from the electron beam. Adding to
Target/ion source fabrication and release procedure 2024-Nov-09
this is the target, cathode heaters and ion sources coils. So the total cooling power required for this target station will be 250 kW.
10.2. ARIEL west target station
The ARIEL west target station will be used at the beginning as test bed for the electron-gamma converter. The maximum electron beam power we plan to deliver to this target station is 250 kW during the next five year. Ultimately, the total cooling power requirement will be 500 kW from the electron beam plus 125 kW from the target heaters and ion coils for a total of 625 kW.
11. Radioactive Gas storage
During the operation of the target station there is a large quantity of radioactive gas that are produced. These gases may have different half-life from ms to billion of years. Those gases have to be stored into tank during operation and than transfer into a larger tank for decay. The release of the decay tank is subjected to monitoring in order to make sure we are within the limit accord-ing to the canadian nuclear safety commission (CNSC) regulation.
We will have two independent systems, one for each target station.
12. Technical Requirements for ARIEL Target Hall
12.1. Fire
The entire target hall must not contain any significant amount of combustible material. The wall and door must be fire proof, following the F90 and T60 regulation. Fire detection system installed in room and ducting. Isolation of work sectors in case of fire.
12.2. Nuclear Ventilation
Ventilation Cascade of under-pressures in different work sectors relative to risk Guaranteed ventilation in case of power cut (Uninterrupted Power Supply and backup network)
The complete target hall must have a ventilation compatible with a class 1 facility. The air flow is arranged in zones where the lower depression is in the target station area and in the hot-cell. The fan system should have redundancy to avoid loss of depression in case of failure.
The air flow must be as laminar as possible over the entire areas to avoid deposition of air-borne contamination.
HEPA filters will be used to filter the ventilation exhaust.
The total exhaust air capacity will be around 7000 CFM.
12.2.1. Zones
The following figure shows the zones diagram. The depression of the zone is controlled by damper installed in the input duct. Each zone will be equipped with pressure reading gauge.
ARIEL specification 2009 August 10
Fig. -- Zones.
The following table gives the areas definition and the partial depression.
East Target
Station
West Target
Station
East
Pre-Separator
West
Pre-Separator
Mass Separator
Bl4N
Decontamination
Facility
Target Exchange
Hot-Cell
Maintenance
Hot-Cell
Hot-Cell
Anteroom
Hot-Cell
Service Area
Spent Target
Vault
ARIEL Target Hall
Acces Area (Boot area, Vestibule)
Public Area
Target/ion source fabrication and release procedure 2024-Nov-09
Table 1 -- List of the ARIEL nuclear ventilation zones and the desired air depression.
# Area Location Depression (inch of water)
1 BL4N tunnel ARIEL building 264
2 Target Station ( e, P ), ETA ARIEL target hall,
3 Target Station ( e ), WTA ARIEL target hall
4 ETA pre-separator ARIEL target hall
5 WTA pre-separator ARIEL target hall
6 Target Hall ARIEL building
7 Hot-cell Target exchange ARIEL target hall
8 Hot-cell Target Maintenance ARIEL target hall
9 Storage Vault ARIEL target hall
10 Hot-cell Service Area ARIEL Building
11 Hot-cell Ante Room ARIEL Building
12 Target Hall Boot Area ARIEL Building
13 Decontamination Facility ARIEL target hall
14 RH Entrance Area B2 Remote Handling
The target station are the most complex area regarding zoning since there two mode for the ventilation operation: one when the target station is receiving beam and the other when they are opened to the target hall for maintenance. The module access area (MAA) and the pre-separator area (PSA) must have damper systems that reflects these two modes.
ARIEL specification 2009 August 10
HEPA filters
Stack exhaust andalpha, beta, gamma monitoring
7000 CFM Fan unit
Backup7000 CFM Fan unit
Fresh air filters
Mass Separator
East Pre-Separator
West Pre-Separator
East Target Station
West Target Station
Target Hall
Exchange Cell
Maintenance Cell
Spent Target Vault
Bl4N
T H Boot Area
Hot Cell Service Annex
Decontamination
Access Area RH
ARIEL Areas MeterDamper
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
0
2
4 6 8 10
Fig. -- Schematic of the ARIEL nuclear ventilation system.
12.3. Water Cooling System and Control
The following figure shows the cooling systems diagram. There will be three close loop systems. The raw water, the low active and the high active cooling systems. The raw water is used to cool all systems that are not in contact with radiation and it is used to cool the low active water cooling system, which is used to cool the high active system.
We may have two active sumps, one at the north end of the target hall that will collect the high active water for the target station cooling. A second one at the south end of the target hall to collect the water for the hot-cells and target hall decontamination.
Target/ion source fabrication and release procedure 2024-Nov-09
Fig. -- Cooling systems diagram
All the decontamination fluids and potential leaks from the high active water system must be contained by the active sump located in the basement of the ARIEL building. All fluids must be analyzed before evacuation.
12.4. Access Protocol
All material and personnel must be monitored when changing room from a high radiation to a low radiation zone. Hand and foot monitors must be installed at the exit of the zone. Person-nel must change clothing before going into high radiation zone. Lockers room must be provided with decontamination shower, washing machine and dryer and hands free wash basins and soap distributor.
12.5. Wall and Floor Surface
Surfaces of the wall and floor must be easily decontaminated, smooth finish, impermeable and washable.
13. Decontamination facility
The decontamination facility will deal with surface contamination object such as turbo pumps or any low energy beam line components.
We will also used the decontamination facility to decontaminate the manipulator arms.
14. Remote Handling Manipulator Repair Area
The remote handling manipulator needs to be maintained on a regular basis to avoid failure during critical operation. The repair or maintenance area required for the maintenance is about 3 by 4 m. It should be shielded because the manipulator can be contaminated from the airborne activity inside the hot-cell area.
15. Steam/water Decontamination for Hot-Cells and Target Hall
Water and steam for decontamination of the target hall and hot-cells. The water will go to the south end active sump
City Water Raw Water• Cooling Tower• Chemistry Lab.• Shower• Washing Machine
Low Active• BL4N• Converter • High Active
High Active• Target Stations• Front End Optics • Pre-Separator Magnet• Decontamination
Active Sump
ARIEL specification 2009 August 10
16. ARIEL Building View
The next three figures show the ARIEL building.
Target/ion source fabrication and release procedure 2024-Nov-09
Figure
ARIEL specification 2009 August 10
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Figure
Target/ion source fabrication and release procedure 2024-Nov-09
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Figure
ARIEL specification 2009 August 10
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Target/ion source fabrication and release procedure 2024-Nov-09