http://www.teambest.com/CNMC_docs/radPhysics/parallel/CNMC_N34001.pdf WebThis plane-parallel ionization chamber was developed for use as a reference chamber for electron dosimetry. The Roos®chamber has a wide guard ring to exclude any perturbation …
PinPoint Ion Chamber 31015 PTW - PTW Dosimetry
WebHelps to precisely adjust the effective point of measurement for PTW ion chambers and solid state detectors in a PTW water phantom. Achieves an alignment accuracy within ± 0.1 mm. Allows to position the detector both horizontally and vertically without further adjustment. Permits to exchange detectors without the need to set a new zero point. WebNPL- owned chamber PTW 34001 serial number 0133 has been calibrated several times and the standard deviation for the mean calibration factor at one beam quality is typically … how to use macro on logitech mouse
Beam quality conversion factors for parallel-plate ionization …
WebSep 28, 2024 · The maximum difference of for plane-parallel chambers in this work to Baumann et al. 8 is 0.7% for the PTW Roos chamber at 250 MeV. While the for the PTW Markus and PTW Advanced Markus chamber agree quite well with the from IAEA TRS-398, 12 the of the IBA NACP-02 and WebSuitable for field sizes from 2 cm x 2 cm to 40 cm x 40 cm. The PinPoint 3D chamber is ideal for dose measurements in small fields as encountered e.g. in IORT, IMRT and stereotactic beams but can also be used for measurements in large fields. Designed for radial beam orientation, the small-sized chamber shows excellent 3D characteristics. WebWater-equivalent RW3 slab phantom with chamber adaptation plates for therapy dosimetry The RW3 phantom is water-equivalent in the energy ranges from 60 Co to 25 MV photons and from 4 MeV to 25 MeV electrons. The phantom is used for monitor calibration and quality assurance measurements. how to use macro keyboard