1Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Neutrino Factory Nozzle Layouts V.B. Graves NFMCC Friday Meeting.

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Presentation transcript:

1Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Neutrino Factory Nozzle Layouts V.B. Graves NFMCC Friday Meeting Apr 10, 2009

2Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Goals To compare the Neutrino Factory Study II target layout with results from current studies Identify some mechanical issues that will need to be resolved

3Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Iron Plug Proton Beam Nozzle Tube SC-1 SC-2 SC-3SC-4 SC-5 Window Mercury Drains Mercury Pool Water-cooled Tungsten Shield Mercury Jet Resistive Magnets Neutrino Factory Study 2 Target Concept ORNL/VG Mar2009 Splash Mitigator General Target Concept

4Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 NF Study II Dimensional Info (unchanged) Based on Study II Tables 3.13, 3.14 Dimensions in cm

5Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 NF Study II Z Reference From Section Locates jet relative to solenoids

6Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 NF Study II Hg Jet Layout

7Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Current Jet/Beam Parameters Recent studies have caused changes to baseline target parameters – Consideration of gravity on jet trajectory moves nozzle below beam – Maximizing particle production requires steeper beam angle New conditions – Beam Angle: -80 mrad, crosses magnet axis at Z=0 Size: 0.4 cm dia – Jet Nozzle angle: -48 mrad Nozzle location: Z=-50cm, Y=+2.7cm Jet angle at Z=0: -60 mrad Jet size: 0.4 cm dia Jet center intersects beam center at Z=0

8Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 NF/IDS Hg Jet Layout

9Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 NF/IDS Jet Trajectory Jet curved trajectory included in model Beam will intersect pieces of dispersed jet all the way to the pool Jet (0.4cm dia) Beam (0.4cm dia)

10Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 NF/IDS Pool Current jet parameters show pool entrance at ~ 2m – Pool has 1 deg slope for drainage – Splash mitigation not shown – Pool definition certainly not finalized!

11Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Nozzle Piping Beam angle limits how short the tapered section of nozzle piping can be – Current lore suggests shorter taper may be preferred for jet quality, but not possible with these dimensions Image shows 2” pipe & flange upstream of 50-cm-long taper

12Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Nozzle Close-up Current clearance 4mm Required clearance around beam TBD

13Managed by UT-Battelle for the U.S. Department of Energy NMFCC Friday Meeting 10 Apr 2009 Clearance for Pion Collection Study 2 baseline defined in MUC0289 and MUC0296 (2004). Magnetic field “tapers” from B = 20 T at z = 0 to B = 1.8 T at z = 12.2 m. Pions within r = 7.5 cm at z = 0 stay within the curve shown below, which reaches r = 25 cm at z = 12.2 m.