Pushing Forward Electric Propulsion Utilizing Innovative Vacuum and Cryo Technology

摘要

1. panel temperature must be at 45 K 2. leak rate must be small enough / nitrogen pumping speed large enough 3. target has usually collected water which is released and dissociated into H_2 and O_2 4. heat radiation affects temperature of cryopanel 5. sputtering off the cryopanels by high-energy ions 6. coating of cryopanels (Ti, steel, etc.) affects reflectivity and therefore their temperature 7. recycling xenon during regeneration challenges the backing pumps 8. displayed pressure is usually not the real pressure --> hot cathode gauge