PTW is a global leader in high-precision dosimetry solutions. For almost a century, our innovations and services have contributed significantly to advance patient safety in modern radiation medicine. PTW technologies enable radiation experts in over 160 countries worldwide to precisely monitor highly complex clinical radiation equipment. The German dosimetry specialist also owns one of the oldest and largest accredited calibration laboratories in the field of ionizing radiation and established THE DOSIMETRY SCHOOL to promote the exchange of knowledge in clinical dosimetry.