science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2010 Substance: Argon Other Names: Formula: Ar CAS-No.: 7440-37-1 Study: euv absorption cross sections Authors: Po Lee, G.L. Weissler Title: Absorption Cross Section of Helium and Argon in the Extreme Ultraviolet Journal/Source: Phys. Rev., 99, 540-542, (1955); DOI:10.1103/PhysRev.99.540 Data: (diagram, table, disk): Energy/Wavelength range: 24.0 - 100.0 nm Resolution: Temperature: Temperature dependence: Pressure: Comments: For argon three absorption edges exist at 786.8 A, 778.0 A, and 424.0 A corresponding to the M3, M2, and M1 edges, respectively. Possible autoionization phenomena between the M2 and M3 edges were observed. The cross section at the M2 edge was found to be 3.5 × 10-17 cm2. Author to whom correspondence should be addressed: (e-mail address):