A NEW MASS SPECTROMETER FOR PRECISION MEASUREMENT OF THE $sup 235$U/$sup 238$U ISOTOPIC RATIO OF UF$sub 6$

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Advan. Mass. Spectrometry, 2: Proc. Conf. Oxford, 1961

OSTI ID:4645248

Brunnee, C

Construction and performance data of a mass spectrometer for UF/sub 6/ measurements are given. The mass spectrometer is equipped with a triple inlet system, and the UF/sub 6/ passes through the ion source as a narrow molecular beam without striking walls. The molecular beam has an aperture angle of only a few degrees. Due to a special construction of the molecular beam system, the consumption of sample material is small. The practical operating period of the ion source is not limited by contamination but by the lifetime of the cathode only, which is more than 1000 hr. The memory factor is smaller than 1.003. After pumping the sample out of the inlet system, the ion current falls to below 0.03% within 20 sec. The measuring accuracy for the isotopic ratio of normal samples is plus or minus 0.0%. (auth)

• Research Organization: ATLAS Meassund Analysentechnik GmbH. Bremen
• NSA Number: NSA-17-038981
• OSTI ID: 4645248
• Journal Information: Advan. Mass. Spectrometry, 2: Proc. Conf. Oxford, 1961, Journal Name: Advan. Mass. Spectrometry, 2: Proc. Conf. Oxford, 1961
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
CATHODES
CHEMISTRY
EFFICIENCY
ION SOURCES
MASS SPECTROMETERS
MOLECULES
OPERATION
PERFORMANCE
PLANNING
QUANTITY RATIO
URANIUM 235
URANIUM 238
URANIUM HEXAFLUORIDE