Alan Bross 6th Plenary Meeting of the IDS-NF Detector Baseline Alan Bross 6th Plenary Meeting of the IDS-NF

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 Detector Baseline MIND is the baseline Better En threshold turn-on Done for idealized dipole field, however Required R&D is well defined Scintillator Existing Technology OK Photodetector SiPM Magnet SCTL Inputs for costing well understood Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MIND 100 kT Fiducial Mass 15m X 15m plates 3 cm thick Iron X-Y dual readout per plan (2 cm scintillator) 0.8 mm WLS fiber readout SiPM photo-detector Approximately 1.1M channels 100 kA-turn excitation current for B Plate color – Chartreuse Coffee Machine – Black & White Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MIND - Latest Results Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

MIND - Latest Results II Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Caveat: Current MC studies use Uniform Dipole Field

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MINOS vs MIND Differences Real toroidal field in MINOS What you see is what you got Algorithmic Event efficiency vs. bkg rejection MINOS approach not optimized for NF case Nevertheless MINOS is now looking very closely at m charge mis-ID (n vs nbar data) Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

At Face value MINOS is not getting nearly the mis-ID rate we need m charge ID in MINOS From Patricia Vahle’s talk at Neutrino 2010 Anti neutrino selection & backgrounds At Face value MINOS is not getting nearly the mis-ID rate we need (or see in the MIND Simulation) Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MINOS ND Low E Masaki Ishitsuka NuFact08 Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MINOS According to Patricia Vahle, 3.4% of nm feed into anti nm data Averaged over all energies Problems Short tracks MCS Confusion from hadronic part of event This is 10X worse than what is required in MIND Can we do as well as we claim in a realistic environment? Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Toroidal Field in MIND

Semi-Realistic Field - Toroidal Field map for 92kA excitation on 15m plate MINOS – 15kA Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 Field Excitation Back to the Future Superconducting Transmission Line: $$500-1000/m ($100k) 0.1W/m (20W) 100 kA-Turn Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 The Big “M” of MIND So, it appears that an acceptable toroidal field can be obtained with 15m plates Requires SCTL But this also gives very small hole (10 cm) compared to MINOS that is essentially empty However In order to really fully understand MIND’s performance, the MC must be done with realistic fields Requires engineering design for plates in order to get realistic toroidal field, not idealised Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 Big Plates Present Big Problems Enormous floor loading Large (much too large) stresses if hung Plate buckling Out of plane issues Fabrication Welded up from many 2m strips Fabrication/installation in mine with a shaft is ugly “Keep Head Out of Shaft” Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MINOS Plate Far Detector Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

MINOS Plate – FEA Analysis Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

MINOS Plates – Structural Rigidity Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

MINOS Plate – Out of Plane Distortions Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 MIND & 15m Plates There are significant mechanical engineering issues with a 15 m plate Most of the support approaches used in MINOS are not acceptable For example, with 2” plates a bolt pattern on 3m centers would be needed Floor loading requires bedrock or an enormous foundation for a surface building 200’ wide Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 2-MINOS Solution? Twice the channel count SCTL Of course, you can just make a MINOS with a length that gives 100 kT Fiducial Mass, or a combination – slightly larger plate (11m?) Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 Readout Extruded scintillator WLS fiber SiPM readout Possibly double-ended This is in very good shape Required R&D already underway 3 cm 1.5 cm 15 m Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 Moving Forward Analysis and simulations: Improve digitization and optimize geometry Add toroidal field Move to GENIE for neutrino interactions Improve hadronic reconstruction: energy and angular resolution Add nt signal to oscillation signal Final sensitivity plots and systematic errors R&D effort: Prototype detectors with SiPM and extruded scintillator Measure charge mis-ID rate Develop CERN test beam for neutrino detector R&D – European AIDA proposal to make H8 into low E beam Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

COSTING

MINOS Cost Plan Remember – 5.4 kT Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

MIND WBS 6th IDS-NF RAL, 22 September 2010 Num Item Cost (k$) % 1 Magnets: steel and coils 36.8 1.1 Steel plane fabrication 31.1 1.2 Steel handling fixtures 1.9 1.3 Support structures 0.7 1.4 Magnet coil 0.1 1.5 Detector plane prototypes 2.5 1.6 Steel management 0.6 2 Scintillator detector fabrication 32.9 2.1 Scintillator strips 7.2 2.2 Fibre 5.6 2.3 Scintillator modules 2.4 Photodetectors Multiplex boxes and connectors 3.2 2.6 Calibration systems 2.7 Assay and test equipment 0.3 2.8 Factories 2.9 Scintillator management 0.5 Num Item Cost MIND (k$) % 3 Electronics and DAQ 7.9 3.1 Front ends 4.8 3.2 Hubs and interface crate 1.8 3.3 Central system and trigger farm 0.3 3.4 Data acquisition 0.6 3.5 Database 0.5 3.6 Auxiliary systems 0.2 3.7 Electronics management 0.1 4 Installation 21.6 4.1 Infrastructure 18.6 4.2 Materials receiving and handling 0.8 4.3 Detector assembly 2.1 4.4 Alignment and survey 5 Project management 5.1 Salary support 0.7 5.2 Travel support Total 100 6th IDS-NF RAL, 22 September 2010

Extrapolating from MINOS Project Plan to 100 kT MIND Multiplier for Double MINOS Steel + Plate Fab 125 1 1k$/metric Ton Scintillator 35 Dual X-Y Readout PD 20 2 40 Fiber Module Fab 1.5 52.5 Electronics 10 Coil 3 Fixturing Factory Outrigging Detector R&D 5 Cavern 150 Installation Project support 1.2 Total v. Fid. Mass Total 699.6 756.6 With escalation 909.48 » (1.04)7 983.58 Millions $ Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010

Near Detector(s)

Near Detector No near detector baseline design yet, but …. Near detector needs to have a leptonic TASD like detector with high granularity, a vertex detector for charm measurement and a MIND-like detector for flux extrapolation and muon momentum measurement Assume these dimensions for costing n beam 3 m B=1 T ~20 m Mini-TASD 95 t Mini-MIND 460 t Vertex Detector 6th IDS-NF RAL, 22 September 2010

Near Detector 6th IDS-NF RAL, 22 September 2010 Num Item Cost (k€) % 1 Mini-MIND 11.1 1.1 Steel plane fabrication MIND 2.3 1.2 Scintillator MIND 1.0 1.3 Fibre MIND 0.7 1.4 SIPM MIND 4.7 1.5 Electronics MIND 2.4 1.6 Coil Mind 0.1 2 Mini-TASD 41.4 2.1 Scintillator TASD 2.6 2.2 Fibre TASD 3.5 SiPM TASD 23.5 Electronics TASD 11.8 Coil 3 Silicon vertex 31.4 3.1 Silicon 26.2 3.2 Silicon electronics 5.2 4 Computing 1400 5.5 4.1 Central system and trigger farm 3.9 4.2 Data acquisition 0.8 4.3 Database Installation 11.4 Infrastructure 7.8 Materials receiving and handling 1.6 Detector assembly 4.4 Alignment and survey 0.4 5 Project management 4.7 5.1 Salary support 5.2 Travel support Total 100.0 6th IDS-NF RAL, 22 September 2010

Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010 Conclusions Overall Baseline detector design in good shape Too many options for NDs at the moment, however Convergence on a detailed design will involve Engineering to the point that produces a detailed plate design and B field configuration Additional simulation work with realistic plate and B Note: The MINOS plates are a complicated mosaic of many pieces welded together and this affects B. Final simulations took all this into account Bigger will be even more complicated Possible iteration “Double-MINOS” or a “little-bigger” MINOS approach is worth looking into Eliminates much of the ME R&D Some price in Fid Mass/Total Mass Near Detector “Baseline” will have Options for now Alan Bross IDS-NF Plenary Meeting - RAL September 22, 2010