About

About PTW / QRM For 100 years, PTW has set the mark in making radiation safer – through breakthrough dosimetry products and an uncompromising commitment to quality, safety and knowledge. Today, we are a major global player in the dosimetry market with a large portfolio of long-established product brands, many of them used around the world for decades. PTW technologies enable clinical radiation experts in over 160 countries worldwide to precisely monitor highly complex clinical radiation equipment. As a pioneer in medical radiation measurements, PTW also operates one of the oldest and largest SSDL calibration laboratories and established THE DOSIMETRY SCHOOL to promote the exchange of knowledge in clinical dosimetry. QRM, a PTW company, has more than 25 years’ experience developing phantoms to evaluate, analyze and tune the performance of medical imaging devices, with a strong focus on diagnostic X-ray, CT and micro-CT imaging, as well as dosimetry.