Screens can be split for dual-mode operation, scales can be set to linear or log format, and data can be scaled manually or automatically. The program is fully interactive, giving the user complete control of the graphical display. The intuitive graphical user interface allows measurements to be made quickly and easily. The RGA systems are supported with a real-time Windows software package that runs on PCs. Unlike other designs, SRS filaments can be replaced by the user in a matter of minutes. Dual ThO 2/Ir filaments last much longer than single filaments, maximizing the time between filament replacement. The ECU can easily be removed from the probe for high temperature bakeouts.Ī long-life, dual thoriated-iridium (ThO 2/Ir) filament is used for electron emission. LED indicators provide instant feedback on the status of the electron multiplier, filament, electronics system and the probe. It is powered by either an external +24 VDC (2.5 A) power supply or an optional, built-in power module which plugs into an AC outlet. The densely packed ECU contains all the necessary electronics for controlling the RGA head. The probe is designed using self-aligning parts so it can easily be reassembled after cleaning. It is covered with a stainless steel tube with the exception of the ionizer which requires just 2 ½ inches of clearance in your vacuum systemabout that of a standard ion gauge. The probe assembly is rugged and mounts onto a standard 2 ¾ inch CF flange. The simple design has a small number of parts which minimizes outgassing and reduces the chances of introducing impurities into your vacuum system. The probe consists of an ionizer, quadrupole mass filter and a detector. chdir ( path + str ( d )) a = mymodel ( env, alnfile = 'full4-r30.ali', knowns = ( 'rib', 'ros' ), sequence = 'aim23-r30' ) a. distance ( at, at ), mean = d, stdev = d / 10 )) joblist = dist = for d in dist : env. distance ( at, at ), mean = d, stdev = d / 10 )) rsr. automodel ): megadistance = 10 def special_restraints ( self, aln ): rsr = self. Path = '/home/localhdd/somework/kamensky/' class mymodel ( modeller.
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