EDM in ER 2 at LANSCE Jan Boissevain
EDM in ER 2 at LANSCE Jan Boissevain LANSCE ER-2 Stake Holder Meeting 6 -05 -03
EDM EXPERIMENT ASSEMBLY DR Gas Cart & Control Rack DR 3 He Pump System & DR 1 K Pot Pump System Purifier 1ºK Pot Pump System Steel/Poly Shielding 3 He Polarized Source Backing Pump & Gas System Support Framework Beam Guide & Polarizer Perm-alloy Magnetic Shielding (5 Layers) T 0 Chopper EDM Cryostat 1000 Liter Dewar Cold Head Compressors Bismuth Filter
EDM in ER 2 Requirements • Floor Space Issues – Access for Maintenance operations – Staging area w/ crane coverage for assembly activities – Access to Upper Cryostat – Initial Installation of large components – mobile crane to move items over flight-path 13 – “Counting House” floor space – Vibration Isolation Pad – Crane Path Access across FP 12 and FP 13
EDM in ER 2 Requirements (2) • Service Issues – AC Power – 250 KVA (see list) – Possible 4 He Liquefier/Compressor shed • Safety Issues – Emergency Helium Vent (exit out east wall) – Radiation Safety – especially on top of apparatus – Crane Trip (highest point of current design 17’) • NPDGamma Issues – EDM T 0 Chopper located in Beam Stop – Bismuth Filter inside NPDGamma cave
EDM IN ER 2 ELEVATION
EDM Experiment Power Requirements • • DRS 3000 Dilution Refrigerator 4 He Purifier Pump 3 He Polarized Source EDM Cryostat Miscellaneous Optional Liquefier Spare Capacity Total 32 KW 23 KW 33 KW 39 KW 50 KW 250 KW
EDM Experiment Power Requirements (2) • DRS 3000 Dilution Refrigerator – 3 He Circulation/1°K Pot Pump System 4000 M 3/hr Roots Pump 1000 M 3/hr Roots Pump (2) 70 M 3/hr Dry Backing Pump (2) – 3 He Gas System & Controls 15 KW 6 KW • 4 He Purifier Pump System 4000 M 3/hr Roots Pump 1000 M 3/hr Roots Pump 70 M 3/hr Dry Backing Pump (2) 15 KW 3 KW 5 KW
EDM Experiment Power Requirements (3) • 3 He Polarized Source RDK 415 D 4°KCold Head Varian V 2000 Turbo Pump Varian V 1000 Turbo Pump (2) Edwards XDS 10 Scroll Pump (3) Pfeiffer Unidry 050 Pump Gas Cart & Instrumentation 9 KW 2 KW 3 KW 4 KW 2 KW • EDM Cryostat RDK 415 D 4°KCold Head (3) Vacuum Pumps 27 KW 6 KW
EDM Experiment Power Requirements (4) • Miscellaneous Leak Detector HV Power Supply Bismuth Neutron Filter Cold Head EDM General Controls & Data Acquisition T 0 Chopper 2 KW 15 KW 10 KW
- Slides: 14