TY - CONF A1 - Osterloh, Kurt A1 - Ewert, Uwe T1 - X-ray backscatter radioscopy for security applications with a novel twisted slit collimator T2 - 3rd Safety and Security Systems T2 - 3rd Safety and Security Systems CY - Potsdam, Germany DA - 2009-06-04 PY - 2009 AN - OPUS4-20695 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -