PinPoint 3D MR Ion Chamber 31025

Ready for use MR conditional chamber.

The 31025 PinPoint 3D MR chamber is ideal for measurements in an MR environment encountered e.g. at MR-Linacs such as MRidian Viewray and ELEKTA Unity. Designed for radial beam orientation, the small-sized chamber shows excellent 3D characteristics. Relative dose distributions can be measured with high spatial resolution in any direction. It is waterproof and guarded, thus it can be used in air, solid state phantoms and in water.

Key Features

Particularly suited for End2End testing of gating algorithm
MR conditional (ASTM F2052-15 & ASTM F2213-17)
Optimized MR imaging feature
Carefree and safe use in an MR environment
Same specifications as T31022
Can be used with s.o. MRidian Viewray and ELEKTA Unity

Technical Specifications

Type No.	31025
Design:	vented cylindrical ionization chamber, waterproof, fully guarded
Measured quantities:	absorbed dose to water, air kerma, exposure
Nominal sensitive volume:	0.016 cm³, radius 1.45 mm, length 2.9 mm
Reference point:	on chamber axis, 2.4 mm from chamber tip
Nominal response:	400 pC/Gy
Chamber voltage:	300 V nominal, ± 500 V maximal
Radiation quality:	⁶⁰Co ... 25 MV photons
Field size:	(2 x 2) cm² ... (40 x 40) cm²
Connectors:	TNC

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