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Status of the TT2A target experiment 

Status of the TT2A target experiment . A.Fabich CERN AB/ATB ENG/BENE meeting, CERN, 16 th March 2005. Approval Status. APPROVED by the research board CERN 2.Dec.2004: … The proposal was approved by the Research Board, subject to further clarification of the resources …

JasminFlorian
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Status of the TT2A target experiment 

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  1. Status of the TT2Atarget experiment  A.Fabich CERN AB/ATB ENG/BENE meeting, CERN, 16th March 2005 A.Fabich, CERN AB/ATB

  2. Approval Status • APPROVED by the research board CERN • 2.Dec.2004: … The proposal was approved by the Research Board, subject to further clarification of the resources … • 3.March 2005: fully approved (oral information) • CERN experiment database: http://greybook.cern.ch : nToF11 A.Fabich, CERN AB/ATB

  3. Safety • In close collaboration with Safety Commission (SC) • No obstacles • Hot issues (mercury, activation, …) evaluated • Basic procedures and specifications defined for safe operation A.Fabich, CERN AB/ATB

  4. Target: 1-cm diameter mercury jet, v=20 m/s Proton beam: 24 GeV, <28x1012 ppp, total of 100 pulses Meson capture: 15 Tesla solenoid field (pulsed) Study … proton induced shocks Magneto-fluid-dynamics Secondary particle yield NOMINAL target test A.Fabich, CERN AB/ATB

  5. Pump Motor Secondary Containment Sump Tank Target Module CentrifugalPump w/ Magnetic Coupling Hg Jet Containment Hg Target Jet System V.Graves, ORNL A.Fabich, CERN AB/ATB

  6. Hydraulic Pump, Reservoir, & Flow Control Valve Pump Systems EM centrifugal pump or Hydraulic piston pump A.Fabich, CERN AB/ATB

  7. 15 T pulsed solenoid • 3rd coil production completed • Integration into cryostat starts • Testing scheduled in summer 2005 at MIT P.Titus, MIT A.Fabich, CERN AB/ATB

  8. Solenoid Beam Attenuator Proton Beam Hg Delivery System … on the beam line V.Graves, ORNL A.Fabich, CERN AB/ATB

  9. Cryogenic system • Base line scenario • Final design dependent on performance tests at MIT A.Fabich, CERN AB/ATB

  10. Power supply • Reuse existing CERN power supply • Previously used for extraction towards SPS West Area A.Fabich, CERN AB/ATB

  11. TT2A Periphery PS beam experiment Equipment ISR Control Room Control room A. Fabich A.Fabich, CERN AB/ATB

  12. Primary Containment Hg Jet Z=0 Viewport Secondary Containment Proton Beam Primary Containment A.Fabich, CERN AB/ATB

  13. Optical Diagnostics Retro-reflected design, Optical high speed recording (<1 MHz) e-Drawing - Van Graves, ORNL e-Drawing - Van Graves, ORNL One set of optics per viewport T.Tsang, BNL A.Fabich, CERN AB/ATB

  14. Secondary particle yield • momentum p = 24 GeV/c • 4 bunches within 8 PS buckets at our discretion • tpulse= 0.5-2 microseconds • tbunch=50ns full length, peak-to-peak 250 ns • < 7 TP per bunch, total intensity < 28 TP/pulse • spot size at target: <2 mm r.m.s. Pump-Probe method for cavitation studies A.Fabich, CERN AB/ATB

  15. Time schedule • 2003 • Autumn LOI • 2005 • March nToF11 approved • Spring solenoid construction completed • Summer solenoid tests • Winter construction of Hg system • 2006 • April solenoid test finished • June solenoid shipped to CERN • autumn integrated test at CERN • Dec fully ready for beam • 2007 • April final run at PS start-up Budget: ~2.5 M$ A.Fabich, CERN AB/ATB

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