PTW is a global market leader for dosimetry and quality control solutions in radiation medicine, serving the needs of medical radiation experts in more than 160 countries worldwide. Founded in 1922, the German manufacturer is one of the pioneers in medical radiation measurement, known for its unparalleled quality and precision. For PTW, making medical radiation safer is both a passion and lifetime commitment. The family-run high-tech company operates 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.