1. EURONu Collaboration Board,
EUROnu WBS Detectors
EURONu Collaboration Board,
CERN, 10 October 2011
Paul Soler,
on behalf of WP5 group
University of Sofia

2. MIND engineering concept
MIND steel plates: 14 m octagonal plates (3 cm thick)
Two planes of scintillator (1 cm each) between steel plates
Toroidal field by having100 kA through STL in centre
Engineering and magnetic field maps being developed at Fermilab
Two detectors
M~ KTon
14mx14mx3cm plates
EUROnu: 11th October 2011

3. MIND engineering concept
Dimensions of each plane and support structures
Bross, Wands (FNAL)
1.23 m
Area plate=156.6 m2
Mass plate=37.6 t (159.6 t with the ears) m
Total length = 140 m
2800 modules (5 cm)
Total 105 kton steel
(assume €1000/ton)
9.2 kton scintillator
(assume €6000/ton)
EUROnu: 11th October 2011

4. MIND magnetisation
Magnetisation can be achieved using Superconducting Transmission Line (STL) developed for VLHC: $500/m
Can carry 100 kA turn
Only need 10 cm diameter hole
f=8 cm
Bross
STL Test stand
EUROnu: 11th October 2011

5. MIND scintillator
Scintillator: x-view and y-view planes 1 cm thick each plane
Baseline: rectangular scintillator strips (3.5 cm wide, s ~ 1 cm)
Alternative: triangular strips (s ~ 5 mm) times more channels
Co-extrusion fibre-scintillator
Wavelength shifting fibres
Kuraray currently is the only manufacturer in the world that can deliver WLS fibres of consistently good performance
Numbers: 788 scint./module x 2800 modules = 2.2 M bars
25,000 km of WLS fibre (~€1/m)
(makes project ~20% more expensive)
1.5 cm
3 cm
1 cm
3.5 cm
EUROnu: 11th October 2011

6. Photon detectors Photodetectors: SiPMT (also known as MPPC, MRS, etc.)
SiPMTs improving and cost is lowering (assume €10/channel) – total estimated number of channels = 4.4 M
Silicon avalanche photodiode operating in Geiger mode
Multi-pixels: number of pixels that fire is prop. number of photoelectrons
Hamamatsu are already producing quads (ie 4 channel devices)
Further encapsulation might be possible
EUROnu: 11th October 2011

7. MIND WBS Work Breakdown Structure
MINOS and NOvA provide useful examples of WBS for MIND
Note: 2.3 Magic baseline detector (the same as 2.2 but cost ~50%)
2.2.
Intermediate baseline detector (MIND 100 kton)
2.2.1.
Detector R&D
2.2.2.
Underground cavern
2.2.3.
Steel plate fabrication
2.2.4.
Magnet coil
2.2.5.
Scintillator detector fabrication
2.2.6.
Electronics, DAQ and database
2.2.7.
Detector installation
2.2.8.
Project management
EUROnu: 11th October 2011

8. MIND WBS Work Breakdown Structure 2.2.1. Detector R&D 2.2.1.1.
Scintillator R&D
STL R&D
Photon detector and electronics R&D
2.2.2.
Underground cavern
Geomechanical studies
Cavern construction
Cavern outfitting
EUROnu: 11th October 2011

9. MIND WBS Work Breakdown Structure 2.2.3. Steel plate fabrication
Engineering, design
Steel management
Detector plane prototypes
Steel procurement
Steel plate assembly
Steel transport
Steel support structures and handling fixtures
2.2.4.
Magnet coil
STL fabrication
STL cryo plant
Power supplies

10. MIND WBS Work Breakdown Structure 2.2.5.
Scintillator detector fabrication
Engineering, design
Scintillator strips
WLS fibre
Scintillator modules
Photon detectors (SiPMTs)
Multiplexing boxes and connectors
Calibration systems
Assembly and test equipment
Factories
Scintillator management
EUROnu: 11th October 2011

11. MIND WBS Work Breakdown Structure 2.2.6. Electronics, DAQ and database
Front end electronics
Data routing and trigger farm
Data acquisition and triggering
Database
Auxiliary systems
Slow controls and monitoring
High Voltage systems
Electronics management
EUROnu: 11th October 2011

12. MIND WBS Work Breakdown Structure 2.2.7. Detector installation
Management
Lab infrastructure
Plane assembly area
Installation
Alignment and survey
2.2.8.
Project management
EUROnu: 11th October 2011

13. Water Cherenkov design
MEMPHYS concept: engineering of cavern from LAGUNA
Laboratoire Souterrain de Modane Fréjus at 4800 m.w.e.
Fiducial: 440 kton (3 x 65mX60 modules), or 572kton (3 x 65mX80m)
Readout : ~3 x 81,000 12″ PMTs (alternatively 8″, 10″) for 30% cover
EUROnu: 11th October 2011

14. MEMPHYS R&D R&D on photon detector readout: 12” and 8” PMT design
Groups of 16 PMTS read out by one ASIC: PArISROC
MEMPHYNO Prototype
16 channel
front end chip
testboard
EUROnu: 11th October 2011

15. MEMPHYS WBS Work Breakdown Structure: to be included in each project
Cern2Frejus WBS: 5. Far Detector (x=5)
Beta Beams WBS: 4. Main Detectors (x=4)
x.2.
Water Cherenkov detector (MEMPHYS)
x.2.1.
Detector R&D
x.2.2.
Underground cavern
x.2.3
Tank
x.2.3.
Photomultiplier tubes
x.2.4.
Electronics, DAQ and database
x.2.5.
Detector installation
x.2.6.
Project management

16. MEMPHYS WBS Work Breakdown Structure x.2.
Water Cherenkov detector (MEMPHYS)
x.2.1.
Detector R&D x
PMT R&D x
Electronics R&D
x.2.2.
Underground cavern x
Geomechanical studies x
Cavern excavation
x.2.3.
Tank
x.2.3.1
Materials
x.2.3.2
Manpower
EUROnu: 11th October 2011

17. MEMPHYS WBS Work Breakdown Structure x.2.4. Photomultiplier tubes
PMT Housing x
PMT support x
Cables x
Calibration systems x
Assay and test equipment
EUROnu: 11th October 2011

18. MEMPHYS WBS x.2.5. Electronics, DAQ and database x.2.5.1.
Front end electronics x
High Voltage x
Online computing x
Data acquisition x
Database x
Auxiliary systems x
Electronics management
x.2.6.
Detector installation x
Management x
Detector assembly x
Water/purification
x.2.7.
Project management
EUROnu: 11th October 2011

19. Near Detectors Near detector for a Neutrino Factory: n beam
Neutrino flux (<1% precision) and extrapolation to far detector
Charm production (main background) and taus for Non Standard Interactions (NSI) searches
Cross-sections and other measurements (ie PDFs, sin2qW)
n beam
3 m
B>1 T
~20 m
High Res Detector
Mini-MIND
Vertex
Detector
4 near detectors at
Neutrino Factory
(one per straight)
EUROnu: 11th October 2011

20. Near Detector WBS
Work Breakdown Structure: start off with Neutrino Factory
For Beta Beam and Super-beam, it is the same, but removing the silicon vertex
2.1.
Near Detector
2.1.1.
Mini-MIND
2.1.2.
High resolution tracker
2.1.3.
Silicon vertex
2.1.4.
Computing
2.1.5.
Installation
2.1.6.
Project management

21. Near Detector WBS Work Breakdown Structure 2.1.1. Mini-MIND 2.1.1.1.
Steel plane fabrication MIND
Scintillator MIND
Fibre MIND
SIPM MIND
Electronics MIND
Coil Mind
EUROnu: 11th October 2011

22. Near Detector WBS Work Breakdown Structure 2.1.2.
High resolution tracker
Scintillator HighRes
Fibre for scintillator HighRes
SiPM for scintillator HighRes
Electronics for scintillator HighRes
SciFi fibres
SiPM SciFi
Electronics SciFi
Coil
Cryo plant
EUROnu: 11th October 2011

23. Near Detector WBS 2.1.3. Silicon vertex 2.1.3.1. Silicon 2.1.3.2.
Silicon electronics
2.1.4.
Computing
Central system and trigger farm
Data acquisition
Database
2.1.5.
Installation
Infrastructure
Materials receiving and handling
Detector assembly
Alignment and survey
2.1.6.
Project management

24. Conclusions WBS is the same as presented at the last costing meeting
I have added comments on the safety of each of the detector components.
The main issues arise in the construction and operation of detectors underground
There is already experience from MINOS, SuperK and other underground detectors on these issues.
EUROnu: 11th October 2011