Ultra-high vacuum (UHV) system designed to simulate the space environment of a geosynchronous satellite; This includes considerations for vacuum, temperature, radiation, and other factors.

Base Pressure: 1 x 10^-9 to 1 x 10^-10torr ]

Simulated Space Environment

Electron Bombardment
Protons & Atomic Hydrogen
Ultraviolet Radiation

MOLECULAR DIFFUSION PUMP: Pfiffer

OXYGEN ION GUN: SPECS IQE 11-A

Electron bombardment

SPECS Scientific Instruments/Kurt J. Lesker Model FG 15/49 flood gun

The energy of the electrons can be varied by varying the potential on the sample and the accelerating potential of the electron gun

Bombardment by protons and atomic oxygen

SPECS Scientific Instruments/Kurt J. Lesker Model IQE 11/35

The proton beam is produced in the ion source by electron beam dissociation of molecular hydrogen, H₂. The proton beam is accelerated towards the sample using an electrostatic potential.

Oxygen ions, O⁺, are produced by electron beam dissociation of O₂. The O⁺ beam is accelerated towards the sample with an electrostatic potential.

Vacuum UV light source

SPECS Scientific Instruments/Kurt J. Lesker Model FG 15/49

Excited helium, will simulate the UV radiation from the sun.

Kurt J Lesker Co

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