NPDGamma - LH2 Target - Relief/Ventline Systems Seppo Penttila NPDGamma Project Manager Predicted A  =5x10 -8 We are aiming to 10% measurement.

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NPDGamma - LH2 Target - Relief/Ventline Systems Seppo Penttila NPDGamma Project Manager Predicted A  =5x10 -8 We are aiming to 10% measurement.

Proposal was written in 1997 Spinka I Committee’ technical review in 1998 Spinka II Committee’s technical review in 2000 Project Management Plan signed in 2001 Spinka III technical review in November Commissioning run - beam line, experiment except of LH2 target are ready The latest DOE review was on Oct-2004 Project background

Organizational Chart Bill Louis Jack Shlachter Doug Fulton TBA Hersman/UNH Gentile/NIST

Organizational chart for the construction of the experiment and the beam line Project Construction (Cont. from Fig. 3.1) S. Penttila / LANL Beam Line Coordinator S. Penttila / LANL Beam Line Coordinator S. Wilburn / LANL Experiment Coordinator S. Wilburn / LANL Experiment Coordinator S. Page / Manitoba Beam Monitors S. Page / Manitoba Beam Monitors S. Wilburn / LANL Cave S. Wilburn / LANL Cave S. Wilburn / LANL Spin Flipper S. Wilburn / LANL Spin Flipper R. Carlini / TJNAF Guide Field R. Carlini / TJNAF Guide Field K. Coulter / Michigan T. Smith / NIST 3 He Polarizer K. Coulter / Michigan T. Smith / NIST 3 He Polarizer S. Wilburn / LANL DAQ S. Wilburn / LANL DAQ M. Snow / Indiana Hydrogen Target M. Snow / Indiana Hydrogen Target M. Snow / Indiana Detector M. Snow / Indiana Detector S. Wilburn / LANL ER-2 Utilities S. Wilburn / LANL ER-2 Utilities J. David Bowman / LANL Test & Commission J. David Bowman / LANL In-Pile J. David Bowman / LANL In-Pile S. Penttila / LANL Guide S. Penttila / LANL Guide S. Wilburn / LANL ER-1 Utilities S. Wilburn / LANL ER-1 Utilities S. Penttila / LANL Shutter S. Penttila / LANL Shutter S. Penttila / LANL Integrated Shielding S. Penttila / LANL Integrated Shielding M. Leuschner / UNH Chopper M. Leuschner / UNH Chopper TBD / LANL (LANSCE) Integrated Beam Line Coordinator

The NPDGamma Collaboration Collaborating institutes; Dayton, Dubna, Hamilton, IU, Jlab, KEK, LANL, NIST, ORNL, TRIUMF, UCB, U. Manitoba, UM, UNH, UT, … Sponsors: DOE, NSF, NSERC, LANL, KEK, Institutes

Flow chart for the shed and ER2 LH2 target effort

Issues for this review but not limited to LH2 target vent stack at ER2. Ventilation line for the GHS enclosure at ER2. LH2 target vent stack in MPF-35, shed. Ventilation duct for the tent in MPF-35.

Working in the “new” Laboratory To have the approved LH2 target at Lab at present times is a great challenge for the NPDGamma collaboration and LANL personnel. We need all available help and support to complete successfully this project. Project schedule: First fully test the target system in MPF-35. Then mount the target to FP12 and test it. Get approvals and be ready for beam in late summer We need about 1-2 mo beam on the target in Vent lines: In and outside ER2 the pipes should be in place prior the beam.

10%-Design Review of the FP-12 Liquid Hydrogen Target Vent Systems Agenda: 9:00Opening words Bowman 9:10Committee ’ s charge Hurd/Knudson 9:20 NPDGamma experiment; status, plans, schedules Penttila 9:35Discussion 9:45LH2 target system and its safety features Snow 10:05 Discussion 10:20Sizing of the vent/relief lines Nann 10:50Discussion 11:15 Sizing of the vent/relief lines from 1 st principles Jankowski 11:25Discussion 11:3510%-design of the relief/vent lines in shed and in ER2 Etuk/Penttila 12:05Discussion 12:30Box lunch followed by touring MPF-35 and ER2 1:30 Results of testing CF joints Snow 1:45 Discussion 2:00 Ventilation of gas handling system in shed and in ER2 Penttila 2:30 Discussion 2:50 Discussion to close open issues Knudson 4:50 Closing