[en] The report contains 7 different contributions of which 6 are in scope and can be retrieved from the database. The following subjects are dealt with: (1) instrumental characterization of surface layers; (2) low temperature pulse radiolysis in organic glasses; (3) gamma irradiation plants at the ZfI; (4) ultrasensitive mass spectroscopy and laser induced plasma deposition for the production of thin films; (5) phospholipid biopolymer aggregates: Challenging objects for the application of radioisotopes and useful tools for bioresearch; and (6) mathematical modeling of backscattering of very large distances between radiation source and scattering media. (BBR)