LEEP 2
22 Mar 2018
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​LEEP2 is the main chamber for thruster qualification and acceptance testing. The largest section of the chamber is 3.8m diameter x 4m long. The conical section is 0.9m long and the small section is 2.6m diameter x 5m long. Thrusters are located at the junction between the 2.6m and conical sections and the ion beam(s) are directed towards the chamber door/target. This configuration minimises any thruster chamber interactions. The ion beam target is a water-cooled graphite clad design and the walls of the chamber are protected using a stainless steel/graphite liner. LEEP2 characteristics:

  • Chamber dimensions: 3.8m di​am x 9m long and 2.6m diam x 5m long
  • Water-cooled graphite target on chamber door
  • Pressure <2 x 104 mbar with xenon flow rates up to 30mg/s
  • Pumping capacity equivalent to 100,000 l/s Xenon
  • High Xenon flow rates suitable for large Hall-effect thrusters
  • Measurements of plume characteristics such as thrust vector and beam divergence
  • ​Thrust balance for real-time thrust measurement​​​

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