MERCURY JET TARGET FOR E-951 C. C. Finfrock, G. A. Greene and H. G. Kirk E-951 Collaboration for Targetry Design Brookhaven National Laboratory December 15, 2000 Brookhaven Science Associates U.S. Department of Energy
Target Requirements Target Requirements Generate a one cm. diameter arcing horizontal jet of mercury to provide a 10 to 15 cm interaction length with the proton beam. Provide an unobstructed view of the interaction zone for high speed imaging. Operate simply, reliably and remotely. Safely contain projectiles which may be generated by mercury-beam interactions Manage mercury vapor generation Mounting system to provide for easy interchange of other test targets Materials of construction must be compatible with mercury and survive a radiation environment. Brookhaven Science Associates U.S. Department of Energy
Conceptual Approach Conceptual Approach Internal and external target containments: Use commercial conflat vacuum components, blind-flange beam windows, quartz and/or Lexan view ports wherever possible. Use standard instrumentation and pneumatic feedthroughs wherever possible. Design approach: design to reduce beam intensity on windows optimize materials to insure survivability insure mercury compatibility fiducial registration for target change out Brookhaven Science Associates U.S. Department of Energy
Materials Considerations Materials Considerations Containments: commercially available stainless steel components for inner containment welded stainless steel sheet for outer containment Inconel-718 external beam windows quartz internal viewports Lexan external view ports Valves: stainless steel bodies Poly-Ether-Ether-Ketone seats Ethylene-Propylene o-rings Brookhaven Science Associates U.S. Department of Energy
Pneumatically Actuated Ball Valve Pneumatically Actuated Ball Valve 1/2 inch swagelok fittings weight: 7.24 lbs rated 2200 psig from -20 to 100 F body: stainless steel seats: teflon rated 800 psig at 300 F cost: $391.10 rated 100 psig at 450 F Whitey "60" series valve E-951 Muon Muon Collider Targetry Date : 11/17/00 with pneumatic actuator prepared by : C. Finfrock part numberSS-63TS8-33C Brookhaven Science Associates U.S. Department of Energy
Pneumatic Control System for Fluid Jet Pneumatic Control System for Fluid Jet vent V3 Comp. Air Jet Delivery: V4 to vent, V3 to comp. air, open V2, openV1 Stop Jet: Close V1, close V2, V3 to vent reset for next shot: V4 to Comp air V1 1/3 psi check valve vent V2 V4 pneumatic control system E-951 Muon Muon Collider Targetry Date : 10/30/00 for mercury jet target (prototype) drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Apparatus to Simulate Hg Jet With Water Apparatus to Simulate Hg Jet With Water Brookhaven Science Associates U.S. Department of Energy
Water Arc Simulation of Mercury Jet Water Arc Simulation of Mercury Jet Brookhaven Science Associates U.S. Department of Energy
Superposition of Jet Trajectory and Calculation Superposition of Jet Trajectory and Calculation 0.20 0.15 0.10 0.05 0.00 -0.05 -0.10 -0.15 0.0 0.1 0.2 0.3 0.4 distance (meters) Brookhaven Science Associates U.S. Department of Energy
Overall Beam Line Layout Overall Beam Line Layout PA A (1H) #2, #1 E (3H) PA CA 63x44 PA B (2H) 56x51 A (2H) 56x51 56x51 56x51 CA B(1H) B(1H) PA E(3H) B (2H) 36 96x24x132 192x24x132 192x24x132 #1, #1 CA A (2H) A (2H) A (2H) B (2H) A (2H) CA A (2H) Fresnel Lens 27 9' ROOF 11' ROOF A3Q6 A3Q7 A3Q8 M229 8Q48 M222 8Q48 N3Q48-3 TARGET Fiberoptic Cable F E #2 B (2H) E PA 13'5''x2'x2'' 13'5''x2'x2'' 13'5''x2'x2'' 19 A 192x24x72 56x51 56x51 56x51 56x51 56x51 56x51 56x51 P3 56x51 56x51 96x24x72 96x24x72 P1 (2H) Laser Diode E E 120x48x120 120x48x120 120x48x120 168x48x120 PA PA Telescope and CCD Camera Brookhaven Science Associates U.S. Department of Energy
Schematic of Traversing Table Layout Schematic of Traversing Table Layout Y 42'x2'x2' 40'x2'x11' 12 Telescope & CCD Camera #2 #1 #1 #2 CR Target Cell A LT-10 56x51 56x51 (6PL)13'5''x8'8''x2'' Fresnel Lens A Shielding Fiberoptic Cable ELEVATION SECTION FF Brookhaven Science Associates U.S. Department of Energy
Mercury Jet Internal Confinement, Mercury Jet Internal Confinement, Remote Reservoir Design Remote Reservoir Design driving pressure / vent 4" dia x 8" long 1.5 liter from collection tank to nozzle inlet from delivery tank driving pressure / vent collection tank 6" dia x 4" long 1.5 liter manual drain to delivery tank Mercury Jet E-951 Muon Muon Collider Targetry Date : 11/30/00 Internal Confinement III proton beam going left to right drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Mercury Jet Internal Confinement, Mercury Jet Internal Confinement, Integral Reservoir Design Integral Reservoir Design driving pressure / vent 4" dia x 8" long 1.5 liter from mercury confinement driving pressure / vent to jet nozzle I 718 beam window (x2) from delivery tank manual drain to delivery tank Mercury Jet E-951 Muon Muon Collider Targetry Date : 12/01/00 Internal Confinement V projectile trajectory from left to right drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Looking Into The Secondary Looking Into The Secondary Confinement From Above Confinement From Above DRAFT confinement envelope table top Koby driving pressure driving pressure Koby Koby Hg Adsorber Hg Adsorber Hg Adsorber Model # Model # Model # 500-SKCB 500-SKCB 500-SKCB Date : 12/06/00 E-951 Muon Muon Collider Targetry Hg Jet Component Layout in Revised : 12/14/00 External Confinement, Plan View particle trajectory from left to right drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Side View of the Secondary Side View of the Secondary Confinement Confinement table top Hg Jet External Confinement E-951 Muon Muon Collider Targetry Date : 12/14/00 Side Elevation View particle trajectory from left to right drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Detail of the Upstream Experiment Detail of the Upstream Experiment Mount, Table Component Mount, Table Component 2 in by 2 in by 0.5 in build-ups welded on each end plan view "A" "A" MSC part # 06984348, half in. bullet nosed pin, pressed in, 2 places elevation sect. A-A Sub-base for Mounting Expt. E-951 Muon Muon Collider Targetry Date : 12/12/00 Upstream Mount drawn by : C. Finfrock Material : CRS Brookhaven Science Associates U.S. Department of Energy
Detail of the Upstream Experiment Detail of the Upstream Experiment Mount, Target Component Mount, Target Component 2 in by 2 in by 0.5 in build-ups welded on each end plan view "A" "A" bolt holes appropriate for mounting to apparatus elevation sect. A-A MSC part # 06984546, half in. liner for pin, pressed in, 2 places Sub-base Mating Mount E-951 Muon Muon Collider Targetry Date : 12/12/00 Upstream Mount Material : CRS drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Detail of the Downstream Experiment Detail of the Downstream Experiment Mount, Table Component Mount, Table Component Fixture Jack, MSC # 82408915 to be pressed in Sub Base for Mounting Expt. E-951 Muon Muon Collider Targetry Date : 12/14/00 Downstream mount drawn by : C. Finfrock Brookhaven Science Associates U.S. Department of Energy
Current Status Current Status Water jet tests are essentially complete. Mercury jet target designs are substantially complete, minor detailing still underway. Test stand will be installed in beam line very soon. Materials list with prices and quotes about 75% complete. Ready to order many components now. Next step is to prepare for the experiment safety review, then begin target construction. Brookhaven Science Associates U.S. Department of Energy
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