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SciBath Tests Completing in MINOS Underground Area T1014

The SciBath detector prototype at MINOS Area in FNAL is designed for precise event reconstruction, particularly neutral current elastic (NCel) interactions. It aims to study neutron and strange proton spin contributions in the energy and direction spectra of particles. With a high-density fiber grid immersed in liquid scintillator, it measures beam-induced and cosmic neutrinos under 100m overburden. The deployment includes monitoring, calibration, and data collection, demonstrating charged particle tracking capabilities and neutron background measurement efficiency. Contact us for more information.

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SciBath Tests Completing in MINOS Underground Area T1014

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  1. SciBath Tests Completing in MINOS Underground AreaT1014 Lance Garrison R. Cooper, H.-O. Meyer, T. Mikev, L. Rebenitsch, R. Tayloe, R. Thornton

  2. Prototype n,n Detector nm nm n n Z0 • Precise n event reconstruction • Neutral current elastic (NCel) Ds: strange contribution to proton spin • Neutrons • 1-100 MeV • Energy & direction spectra • Important for low background experiments N N N N • At FNAL: MINOS Area • Demonstrate n event reconstruction • Collect ~500 n events • Measure n fluxes • Cosmogenic & beam related • 100 m overburden All Experimenters Meeting, FNAL

  3. Design Concept • 3D grid of light collecting fibers immersed in liquid scintillator, no optical separation • High channeldensity • Readout with custom DAQ incorporating multi-anode PMT system All Experimenters Meeting, FNAL

  4. The SciBath Detector • 80 L liquid scintillator (LS) • 88% mineral oil • 11% pseudocumene • 1% PPO • 768 (3-16x16) array wavelength-shifting fibers(x,y,z axes) • 1.5 mm diameter • 2.5 cm spacing • UV → blue All Experimenters Meeting, FNAL

  5. The SciBath Detector • Pulsed LED calibration All Experimenters Meeting, FNAL

  6. The SciBath Detector • N2 and LS plumbing All Experimenters Meeting, FNAL

  7. The SciBath Detector • Electronics readout & PMTs All Experimenters Meeting, FNAL

  8. The SciBath Detector • Electronics readout & PMTs All Experimenters Meeting, FNAL

  9. Timeline: SciBath at Fermilab Move, installation, setup, training, safety approval Calibration, runs at > 0.5 pe threshold Production runs at ~0.5pe threshold, 24/7 All Experimenters Meeting, FNAL

  10. Deployment • SciBath Installed in MINOS neardetector area, next to COUPP • ~5 mrad off axis of NUMI beam All Experimenters Meeting, FNAL

  11. Monitoring • Dual camera monitoring (plumbing & IRMs) • Agilent power supply web controllable • Full run control and monitoring availableremotely • 24/7 monitoring • Expert on call within 30 min of detector All Experimenters Meeting, FNAL

  12. Monitoring • Dual camera monitoring (plumbing & IRMs) • Agilent power supply web controllable • Full run control and monitoring availableremotely • 24/7 monitoring • Expert on call within 30 min of detector All Experimenters Meeting, FNAL

  13. Monitoring • Dual camera monitoring (plumbing & IRMs) • Agilent power supply web controllable • Full run control and monitoring availableremotely • 24/7 monitoring • Expert on call within 30 min of detector All Experimenters Meeting, FNAL

  14. Monitoring • Dual camera monitoring (plumbing & IRMs) • Agilent power supply web controllable • Full run control and monitoring availableremotely • 24/7 monitoring • Expert on call within 30 min of detector All Experimenters Meeting, FNAL

  15. SciBath at Fermilab Overview Achievements • Data Rates (~0.5 pe trigger) • 6000Hz total, 500Hz per readout board, 8Hz per channel • 1.7MB/s, 5.7GB/hr, 6.5TB total • POT as of 12/12/11 • 6.4x1019 POT total • 4.8x1019POT production quality • 95% live time, optimum • 87% live time, overall • Projected Final Results • 7.5x1019 POT total • ~900 cosmic n • ~300 n events Goals • ~500 n events • Requires ~1020POT • Measure beam induced nflux • Measure cosmic n flux • ~20 events/day, ~60 days All Experimenters Meeting, FNAL

  16. Preliminary Results:Muon Event Display Side View Side View Top View Box Size ≈ Light Collected Approximate Beam Direction All Experimenters Meeting, FNAL

  17. Preliminary Results:Beam Response All Experimenters Meeting, FNAL

  18. Preliminary Results: Beam Time Regions All Experimenters Meeting, FNAL

  19. Preliminary Results: All Experimenters Meeting, FNAL

  20. Preliminary Results: All Experimenters Meeting, FNAL

  21. Preliminary Results: Candidate n capture events! All Experimenters Meeting, FNAL

  22. SciBath (Near) Future • Power down and drain LS to reservoir tank • Leave detector underground over holidays • Move to MINOS service building in January for 1 week calibration run • No beam, cosmic m, n • Possible n flux measurement at MI-12 in Spring All Experimenters Meeting, FNAL

  23. Summary • SciBath is an efficient 3D charged particle tracking detector → reconstruct neutral events • Deployed at FNAL in MINOS near hall • Desire to measure neutron backgrounds (cosmogenic and beam-related) • Measure neutrino interactions • ~2 months data collection ends this week! • 1 week run in MINOS service building in January • Possible run in MI-12 in Spring • THANK YOU Fermilab! All Experimenters Meeting, FNAL

  24. Contact Us • PI: Rex Tayloe (rtayloe@indiana.edu)Cell: (812) 219-1906Office: (812) 855-3057 • Graduate Student: Lance Garrison (langarri@indiana.edu)Cell: (573) 999-9409WH10W: x-3433 • Postdoc: Robert Cooper (roblcoop@indiana.edu)Cell: (734) 657-2890 • Other Group Members on this run of SciBath • Graduate Student: Lori Rebenitsch • Student Intern: R. Tyler Thornton • Other Contributors to SciBath detector • Technical / Engineering: Brandon Kunkler, Shing-Shong Shei, Gerard Vissar • Faculty: H.-O. Meyer • Former students: Melanie Novak (Gr.), Tyler Mikev (UGr.) All Experimenters Meeting, FNAL

  25. Anticipated Sensitivity (n events) • Cosmogenic & beam-related, muon-induced n • 100 m of rock overburden⇒ 20 n / day • Energy / directionspectra not wellcharacterized* *Mei & Hime, Phys. Rev. D 73 053004 (2006)) All Experimenters Meeting, FNAL

  26. Low-Cost Digitization Solution • 64-channel Integrated Readout Module • 12-bit flash ADCs • FPGA logic • ARM-9 micro-controller withembedded Linux kernel • “Ringing” oscillator inputshaping • 6U VME form factor (noVME backplane power) • Ethernet transmission • Built custom “in-house” All Experimenters Meeting, FNAL

  27. Low-Cost Digitization Solution • 64-channel Integrated Readout Module • 12-bit flash ADCs • FPGA logic • ARM-9 micro-controller withembedded Linux kernel • “Ringing” oscillator inputshaping • 6U VME form factor (noVME backplane power) • Ethernet transmission • Built custom “in-house” Power FPGAs ADCs ARM-9 Input All Experimenters Meeting, FNAL

  28. Low-Cost Digitization Solution • 64-channel Integrated Readout Module • 12-bit flash ADCs • FPGA logic • ARM-9 micro-controller withembedded Linux kernel • “Ringing” oscillator inputshaping • 6U VME form factor (noVME backplane power) • Ethernet transmission • Built custom “in-house” All Experimenters Meeting, FNAL

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