- Country of manufactureRussia
Lumas-30 time-of-flight mass spectrometer with glow discharge ionization is a new elemental analyzer. It is intended for direct quantitative analysis of elemental composition of solid-state samples using sputtering and ionization of these samples by pulsed discharge in hollow cathode, as well as for registration of generated ions using time-of-flight mass spectrometer with orthogonal entering of ions.
Types of analysis:
- Bulk analysis (monolithic and powdered samples)
- Depth profiling (thin films and multilayer coatings)
- Objects with mixed layer structure (dielectric-metal, metal-semiconductor and dielectric-semiconductor (e.g. corrosion films on metal surface)
Principle of operation is based on:
- High-efficient direct atomization of analyzed samples (both conductive and nonconductive solids) as a result of cathode sputtering in pulsed glow discharge.
- Pulsed ionization of sample atoms in glow discharge plasma during glow and afterglow periods.
- High-informative time-of-flight registration of mass spectra during afterglow period of glow discharge.
Basic technical characteristics of Lumas-30
|Limit of detection||up to 0,01 ppm|
|Depth resolution||3 nm|
|Dynamic range||more than 7 orders|
|Mass range||1-400 a.e.m.|
|Number of elements being detected simultaneously at one analytic cycle||unlimited|
|Time for analysis of one sample||3-25 min|
|Run-up time||30 min|
|Supply voltage||220 V|
|Watt consumption||1100 W|
|Vacuum system||Forepump and 2 turbomolecular pumps (250 l/s and 70 l/s)|
|Discharge gas||Ar or Ar+H2|
|Gas consumption||1 gas cylinder (40l)/year|