SBND Detector Ting Miao (FNAL) Neutrino - Latin America Workshop April 27, 2016
SBND - S hort- B aseline N ear D etector • A near detector project in the three-detector SBN program Ting Miao – Technical Coordinator/Manager • A FNAL experiment T-1053 of 26 collaboration institutes Ornella Palamara/David Schmitz - Spokesperson 4 Latin American Universities Joined Last Year • 4 Latin American Universities Joined Last Year • SBND Logo New Collaborators Welcome • New Collaborators Welcome • 1 4/27/2016 Ting Miao / SBND
Major Component of SBND x24 Scintillator Light Detectors TPC & Cryostat Building & Cryogenics Support Cosmic Ray Tagger 2 4/27/2016 Ting Miao / SBND
SBND Detector Specifications • TPC in liquid argon for neutrino interaction tracking § 112-ton active LAr volume, 270-ton total LAr § 4m tall x 5m wideand 4m in drift direction – two drift volumes § Cathode Plane Assembles (CPA) in the middle § Anode Plane Assembles (APAs) on the two ends § APA has 3 wire planes with 3mm pitch and spacing: vertical (y) and ± 60 o (U&V) § Cold electronics to have 10:1 S/N ratio and noise level below 800-electron • Cryogenic PMTs as primary system for scintillator light collection § 15 photo-electron/MeV light yield from PMTs, 5ns timing resolution or better § 2nd system –DUNE-style light collection R&D – opportunity for new contributions • Cosmic ray tagger has 4π sold angle coverage around TPC • DAQ is based on uBooNE design and uses PMTs to tag beam events § More opportunity to contribute 3 4/27/2016 Ting Miao / SBND
SBND TPC Component APA wire planes HV-FT CPA 4 m CPA - SS frame and wire mesh Field Cage 5 m 4 m APAs Many opportunities during construction, assembly and • commissioning stages – list of activities next page 4 4/27/2016 Ting Miao / SBND
TPC Participating Institutions 100mm x 100mm x 8mm SS tube TPC Assembly -Chicago/FNAL APA Frames - Sheffield Geometry boards - Yale/BNL Wire Winding -Manchester/Syracuse/Yale Field Cages –Yale/BNL HV feed-through –Yale/UCL CPA - Liverpool Cold Test - Lancaster 5 4/27/2016 Ting Miao / SBND
TPC Electronics Components 3,456/,*&" DRAFT $+,-&" $.*-+.//&+" 01%2" 16 FE Boards !"#$%&'(")*"#$" Warm, inside DAQ rack Cold, on TPC inside cryostat 6 4/27/2016 Ting Miao / SBND
PMT Scintillator Light Detection • 120 8” Hamamatsu R5912-02mod behind TPC wire planes • Readout with CANE v1730 (500MHz and 14 bits) • PMTs to be TPB coated and cold tested before installation • Opportunity for new contribution 7 4/27/2016 Ting Miao / SBND
Light Guide Bar as a R&D Effort • R&D proposal to add ~400 light guide bars side-by-side with PMTs § To increase scintillator light yield § To carryout performance qualification using PMT as reference • A R&D effort closely tied to DUNE collaboration • Fermilab is setting up a facility for TPB coating production • New resources are needed for cabling, electronics & DAQ for SBND • Opportunity to test other light collection ideas too SiPM Readout testing Acrylic Light guide bars 8 4/27/2016 Ting Miao / SBND
Cosmic Ray Tagger Scintillator planes with scintillator models staged in x-y to tag cosmic background in TPC à 94% muon flux coverage • Additional contributions to fill coverage gaps on the top layers • Need new design smaller and flexible modules for the gaps Scintillator Model and SiPM readout 9 4/27/2016 Ting Miao / SBND
Detector Assembly at DAB DAB Clean Tent Step 1 - TPC assembly Step 3 - Feed through, Electronics and PMT Step 2 - TPC-Cryostat Connection 10 4/27/2016 Ting Miao / SBND
SBND Detector Timeline • SBND is in detailing design stage through 2016 o TPC component fabrication design o TPC electronics ASICs and front-end mother boards o PMT coating and testing, readout and integration designs o CRT production design finished in March and in production o Cryostat and cryogenics designs and contracting o DAQ readout designs: timing synchronization and trigger • Detector component fabrications to finish by summer 2017 • Detector assembly and testing at Dzero to finish by Spring 2018 • Detector transfer and installation to finish by summer 2018 • Cryogenics and detector commissioning to start late 2018 11 4/27/2016 Ting Miao / SBND
Opportunities for Collaboration • Many subsystems need additional helps on QA/QC, cold tests and assemble/installation/commissioning • Big needs for additional contribution to light collection R&D • Additional resource to increase CRT coverage • More test-stand helps on cold electronics § Continues effort to understand uBooNE and 35T performance § Test-stand as way for through diagnosis of detector operation issues • Detector assembly, installation and commissioning tasks § Both technical and physicist helps to get SBND ready in 2018 12 4/27/2016 Ting Miao / SBND
Summary • SBND detector project is progressing very well • Many key areas need additional helps • SBND is the next new LArTPC physics experiment before the big DUNE detector • Great opportunity to gain experiences on detector building and neutrino analysis 13 4/27/2016 Ting Miao / SBND
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