Beam Line Layout at Jefferson National Accelerator Facility
Explore the detailed beam line layout at Thomas Jefferson National Accelerator Facility including PRad II and X17 setups, collimators, detectors, target positions, and more. Dive into the intricacies of the beam line system designed for precise experimental measurements.
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Presentation Transcript
JLab Hall B PRad II and X17 Beam Line Layout November 2024 Bob Miller Chris Guthrie Thomas Jefferson National Accelerator Facility Page 1
Outline Beam Line Drawings at: wiki.jlab.org/Hall-B/engineering/hallb_eng_wiki/index.php/Main_Page Hall-B engineering Prad II and X17 Upstream of the Tagger Magnet Prad II from Tagger Magnet to Hycal Prad II Scintillator Tagger Prad II Scintillator Tagger Positions X17 from Tagger Magnet to Hycal X17 Vacuum Tank Window GEM Detectors Hycal to Beam Dump A1 A2 B1 B1 Thomas Jefferson National Accelerator Facility Page 2
PRad II and X17 Upstream of the Tagger Magnet Collimator Block Halo Counters Harp and Radiator Foils Valve and Gauges A1 A2 B1 B1 Raster Magnets Tagger Magnet Thomas Jefferson National Accelerator Facility Page 3
PRad II from Tagger Magnet to Hycal Harp PRad Target Scintillator Assembly GEM Detectors Vacuum Tanks Collimator Box Hycal PRad II Target to Hycal Lead Tungstate Counters is 6.2 Meters A1 A2 B1 B1 Thomas Jefferson National Accelerator Facility Page 4
PRad II Scintillator Tagger Four scintillator paddles Mounted to the downstream side of the target Each paddle can move in and out independently A1 A2 B1 B1 Thomas Jefferson National Accelerator Facility Page 5
PRad II Scintillator Tagger Positions A1 A2 B1 B1 Scintillators in for Hycal Calibration Scintillators Retracted for PRad II Operation Thomas Jefferson National Accelerator Facility Page 6
X17 from Tagger Magnet to Hycal Target Vacuum Tube Vacuum Tanks GEM Detectors 1 Meter Window Collimator Box Hycal X17 Target to Hycal Lead Tungstate Counters is 7.5 Meters A1 A2 B1 B1 Thomas Jefferson National Accelerator Facility Page 7
X17 Vacuum Tank Window Window Adapter in Orange 1 Meter Diameter Window 0.020 Thick Aluminum Aluminum Beam Tube Adapter SST Bellows Aluminum Beam Tube Through Hycal A1 A2 B1 B1 Thomas Jefferson National Accelerator Facility Page 8
GEM Detectors Downstream GEM Mounted to Hycal as in PRad I Upstream GEM Mounted to Downstream GEM via Links GEMs are Spaced 40 cm Apart Upstream Plane to Upstream Plane Thomas Jefferson National Accelerator Facility Page 9
Hycal to Beam Dump Hycal Beamline Valves Beam Position Monitor Harp Vacuum Tubes to Beam Dump Thomas Jefferson National Accelerator Facility Page 10
