MP3-M Phantom Tank
- High-precision, handy 3D water tank
- 3D stainless steel moving mechanism with high speed stepper motors
The MP3-M water tank with its horizontal detector moving range of
500 mm x 500 mm and its vertical range of 407.5 mm is suitable for dose distribution measurements of standard field sizes in radiation therapy up to 40 cm x 40 cm. The 20 mm thick acrylic walls and bottom do not bulge during prolonged period of use and feature etched lines for precise tank alignment. Precision stepper motors are mounted close above the tank making it possible to adjust distances between the LINAC head and the water surface as small as 120 mm. They provide for high detector moving speed of 50 mm/s and high positioning accuracy of ± 0.1 mm. In contrast to analog drives, stepper motor drives do not require regular recalibrations. Stainless steel drive mechanics are used to minimize water perturbation and to preserve positioning accuracy during movement. They do not disturb or affect the measurement accuracy. The tank is supplied with a nozzle to fix the plastic tube of the MP3-M water reservoir for water inlet and outlet. The delivery includes a cable connection box mounted to the tank, a spirit level and an ion chamber-adjusting device. To operate the tank, MEPHYSTO software and TBA electronics are required.
