Photoionization from hydrogen fluoride has been studied with synchrotron radiation in the 30ndash;130 eV photon energy range. Relative photoelectric cross sections have been obtained for the 1pgr; (ionization energy of 16.1 eV) MO, the 3sgr; MO (19.9 eV ionization energy), and in some cases the inner 2sgr; valence MO (I.E.=39.6 eV). Comparison is made with other measurements such as quasiphotoionization results and with onehyphen;center calculations. Angular distribution asymmetry parameters have also been measured for the 1pgr; and 3sgr; MOrsquo;s and compared with those of Ne2p. In the inner valence region, satellites have been observed; this is in accord with most theoretical calculations which predict the breakdown of the onehyphen;particle description in this region.
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