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U.S. Department of Energy
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Precision ion vacuum gage with logarithmic response

Technical Report ·
OSTI ID:5647955
A new ion vacuum gage controller has been developed for use with Bayard-Alpert gage tubes. The instrument employs a logarithmic-gain electrometer to cover up to 12 decades of pressure without the gain range changing. Instrument error and repeatability is +-1% of the pressure reading over a 9-decade pressure range with an ideal Bayard-Alpert gage tube. The instrument also offers selectable autoranging of fixed emission-current control. Futhermore, protection circuits and a computer interface are provided.
Research Organization:
Oak Ridge Y-12 Plant, TN (USA)
DOE Contract Number:
AC05-84OS21400
OSTI ID:
5647955
Report Number(s):
Y-2343; ON: DE85015312
Country of Publication:
United States
Language:
English

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