Heater Control and Plasma Optimization Matthew Bohman ALPHA Collaboration University of Michigan...
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Transcript of Heater Control and Plasma Optimization Matthew Bohman ALPHA Collaboration University of Michigan...
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Heater Control and Plasma Optimization
Matthew Bohman
ALPHA Collaboration
University of Michigan Semester at CERN
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Bakeout and Heater Control
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Heater Control Schematic
PC TCP Server
Ethernet to Serial Adapter
Heater Controller
Heater
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New System
PC
Heater Controlle
r
Heater
Serial Data
Current
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Plasma Optimization
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Three Body Recombination
Anti-Hydrogen Formation
Radiative Recombination
Small, dense, and cold plasmas will maximize anti-hydrogen formation rates
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Formation Rates
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Rotating Wall
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Uncompressed Plasmas
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Partially Compressed, Centrifugally Separated
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Fully Compressed Plasmas
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Cooling
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Evaporative and Sympathetic Cooling
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Evaporative Cooling
40 60 80 100 120 140 160 180 2000
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100
150
200
250
300
350
400
450
500
EVC (%)
Tem
pera
ture
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Sources:Slide 6, 7, 8, 13: images and equations from
E. Butler, Antihydrogen formation, dynamics and trapping,
Ph. D. thesis, Swansea University (2011).
Slide 12: image from EUROfusion