T-REF Chamber

Klicken um Bild zu vergrößernBragg Peak Ioniation Chamber

Reference detector for relative dosimetry in small fields

  • low total area density of 206 mg/cm², water equivalent thickness of 2.06 mm
  • perturbation free transmission chamber
  • exceeds signal-to-noise-ratio of most vented chambers existing on the market
  • easy to mount to water phantom without contact to linac head

The T-REF chamber is a large-area plane-parallel transmission reference chamber and proved to be easy to use. The T-REF chamber 34091 provides a solution to the problem where to put a reference detector in small fields: it is big enough that small fields of ? 5 cm × 5 cm fully transmit through the chamber without being disturbed at the field edge. From the specified minimum distance to the water surface of 20 cm on, there are no perturbations of the beam. In other words: an influence from the chamber through its presence cannot be seen. The very good signal-to-noise-ratio makes it an excellent option for the use as a reference detector especially for small fields.

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