(a) Schematic of system for atom density measurement by absorption spectroscopy (b) inside view of the chamber.
Emission line profile from hollow cathode discharge lamp at 591.5 nm.
Dependence of metastable state/ground state atom density on surface temperature. Theoretically estimated Boltzmann distribution is also plotted.
Atom density distribution profile along the width of the atomic beam.
A comparison of measurement of total atom density by atomic absorption and deposition methods and calculations. Measurement done at a height of 300 mm from the crucible.
Energy levels, wavelengths of the emission used in absorption experiment, and atom density at a temperature of 2940 K. The maximum uncertainty (Ref. 35) in the gf values is 20%.
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