Type 30010, 30011, 30012, 30013

The 0.6 cm³ PTW Farmer chambers are designed for absolute photon and electron dosimetry with therapy dosemeters.

Type 30010 is the standard chamber. The wall material is graphite with a protective acrylic cover, and the electrode is made of Al. The nominal useful energy range is from 30 keV to 50 MeV.

PinPoint Chambers, 0.015 cm³, 0.03 cm³

Type 31006, 31009, 31014, 31015, 31016

The Waterproof PinPoint chambers have been specially designed for relative beam profile measurements in a motorized water phantom for characterization of LINAC radiation fields where superior spatial resolution is desired. The PintPoint chambers are ideally suited for this purpose with their inner diameters of only 2 mm (models 31006/31014) and 2.9 mm (modells 31009/31015).

Semiflex Chambers 0.125 cm³ and 0.3 cm³

Type 31010, 31013

The semiflex chambers are designed for therapy dosimetry, mainly for dose distribution measurements in motorized water phantoms. They have a short stem for mounting and a flexible connection cable. The nominal useful energy range is from 30 keV to 50 Mev photons.

Roos Chamber, 0.35 cm³

Type 34001

The Roos electron chamber, developed in cooperation with Dr. Roos, PTB-Braunschweig (National Laboratory of Germany), is used as a reference electron chamber. It is recommended by the IAEA for high precision electron dosimetry in radiation therapy. The Chamber has a 4 mm wide guard ring to exclude any perturbation effect even at low electron energies. The polarity effect is negligible (<0.5% at 10 MeV).

Advanced Markus Chamber, 0.02 cm³

Type 34045

The Advanced Markus chamber, developed in cooperation with Prof. Rosenow,Göttingen University, Germany, is the newest development of an electron chamber, combining advantages of both Roos and Markus chamber types. Since the outer shape is identical to the Markus chamber, all existing Markus chamber phantom plates and adapters can be used with the Advanced Markus chamber.