Concordia College Hypervelocity Dust Accelerator

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Detector Chamber Manual Vacuum Description General Operation	Vacuum Description The dust accelerator is separated into two vacuum chambers. The first is the CP chamber. This chamber is brought down to a pressure of 10^-3 torr by a mechanical roughing pump. Once this is achieved, a diffusion pump is used to bring the pressure down to 10^-6 torr. The region from the Van de Graaf tank to the CP chamber is evacuated by a separate vacuum system. Again, a mechanical roughing pump is used to bring the pressure down to 10^-3 torr. Once this pressure is achieved, a turbo pump is used to achieve a pressure of 10^-6 torr. An ion gauge is installed in each line to measure pressures below 10^-5 torr. In addition, thermocouples are also installed throughout the system to measure pressures throughout the roughing stage.

Vacuum Description

The dust accelerator is separated into two vacuum chambers. The first is the CP chamber. This chamber is brought down to a pressure of 10^-3 torr by a mechanical roughing pump. Once this is achieved, a diffusion pump is used to bring the pressure down to 10^-6 torr. The region from the Van de Graaf tank to the CP chamber is evacuated by a separate vacuum system. Again, a mechanical roughing pump is used to bring the pressure down to 10^-3 torr. Once this pressure is achieved, a turbo pump is used to achieve a pressure of 10^-6 torr. An ion gauge is installed in each line to measure pressures below 10^-5 torr. In addition, thermocouples are also installed throughout the system to measure pressures throughout the roughing stage.