ULTRA-HIGH VACUUM USE OF BAYARD-ALPERT IONIZATION GAUGES

Journal Article · Fri Mar 01 04:00:00 EST 1963 · Rev. Sci. Instr.

DOI:https://doi.org/10.1063/1.1718330· OSTI ID:4741154

Hartman, T E

Comparisons are made between the collected ion current vs electron emission current for a nude'' gage (Veeco BGT-75) and a glass enclosed gage (Veeco RG-75) both of the Bayard-Alpert type. The ion current is directly proportional to the electron current for the nude gage, when the electron current is 100 mu a or less, down to ion currents as low as the x-ray limit of the gage which is 3 x 10/sup -10/ Torr. Good agreement between the glass and nude gages is obtained over the limited range of electron currents where the glass gage exhibits proportional behavior. A getter-ion pumped ultra-high vacuum system was used for the experiments. (auth)

• Research Organization: Texas Instruments, Inc., Dallas
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-018580
• OSTI ID: 4741154
• Journal Information: Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 34
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BAYARD-ALPERT GAGE
CURRENTS
DIAGRAMS
ELECTRON BEAMS
GAGES
GLASS
INSTRUMENTS AND INSTRUMENTATION
ION BEAMS
IONIZATION
VACUUM
X RADIATION