IMRT intensity verification phantom

Absolute, relative and point dose measurements can be done simultaneously. Multi-point dose measurement and surface dose measurement can be easily completed with layered phantom for three-dimensional simulation of patients. For IMRT and routine dose validation, a comprehensive evaluation of the entire IMRT process. Through the three-dimensional evaluation of the distribution of dose in the sensitive area and uneven tissue in the high and low dose areas, the credibility of the accuracy of the treatment planning system and the improvement of the patient's condition are improved.

synchronous measurement

Time is saved by taking three dose measurements simultaneously in one setting.

absolute dose

Dose measurements were made at 16 points throughout the phantom at different depths using a standard finger ionization chamber.

point dose

Using semiconductor probe or thermoluminescence dosimeter to measure the point dose at any point in the phantom,

Validation of absorbed doses to sensitive organs in the treatment plan.

relative dose

Relative dose (dose fluence) measurements were made using a film placed every 3cm in the phantom. The four reference marker points make it easier to compare the film with the TPS in three dimensions. The reference marker points make film orientation, digital reconstruction of the image, and three-dimensional sagittal and transverse image conversion of multiple coronal film views easier.

In addition, because the user can see through the transparent acrylic film, the ionization chamber and the position of the diode probe, the IMRT phantom ensures measurement accuracy and minimizes errors.

In the case where the film and the ionization chamber positioning plane are parallel, the coronal placed film can be used synchronously with the ionization chamber.

IMRT dose verification phantom components