Investigation of vacuum system requirements for a baseline gravitational-wave detector
Schematic setup of a gravitational-wave detector.
Schematic setup for the calculation of conductance of the tubes with baffles.
Plot shows the actual pumping speed of the pump vs effective pumping speed within the tube of diameter of and length of .
Schematic setup of pump placement in one of the interferometer arms. The pump spacings are given by , as shown, where is the number of pumps per arm.
Variation in the average pressure inside the tube (without baffles) for three values of outgassing rate for stainless steel, when the diameter of the tube is changed. Length refers to the pump-to-pump spacing, as shown in Fig. 4. There would be one pump for , two pumps for , four pumps for , and five pumps for spacing.
Partial pressure of hydrogen for three different diameter tubes with baffles using equally distributed TSP.
Vacuum system parameters for three tube diameter and two TMP speeds.
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