Filament power regulator for thermal ionization mass spectrometry
Abstract
A device was developed that controls the filament temperature in a thermal ionization mass spectrometer. The arrangement is superior to past methods to control this critical parameter. The operating principle lies in the feature of filament power control as contrasted with the formerly used voltage or current controls. Reproducibility and stability of ion beams showed great improvement. The mass spectrometer was developed to analyze for parts per-billion concentrations of uranium in water samples.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1977
- Bibcode:
- 1977STIN...7820485R
- Keywords:
-
- Ionization;
- Mass Spectroscopy;
- Regulators;
- Temperature Control;
- Thermal Dissociation;
- Control;
- Filaments;
- Ion Beams;
- Power Transmission;
- Instrumentation and Photography