Talk:12.4.4 Vacuum Technology
From Mass Spec Terms
Pascal (Symbol Pa)
Jean-Fran?***?*?**??****?*??***?*?**?**?*??ois GAL?***?*?**??***?*?***?*??***?*?**?**?***** 02-28-2004 12:15 PM ET (US)
1 Pa = 1 newton per square meter The numbers given (conversion in different units) do not agree with the data found elsewere , see for example [1]
Gauges
Jean-Fran?***?*?**??****?*??***?*?**?**?*??ois GAL?***?*?**??***?*?***?*??***?*?**?**?***** 02-28-2004 12:27 PM ET (US)
Cold-cathode gauges (penning), absolute gauges used for calibration
Bayard-Alpert Gauge
Jean-Fran?***?*?**??****?*??***?*?**?**?*??ois GAL?***?*?**??***?*?***?*??***?*?**?**?***** 02-28-2004 12:22 PM ET (US)
May be added : Its sensitivity depends on the nature of the gas, in particular its ionization cross section.
