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Machine QA

Exradin® A19MR Ion Chamber, Classic Farmer-type, 0.62cc

The A19 fits existing plastic phantom cavities and build-up caps, limiting perturbation and minimizing settling time in clinical dosimetry measurements. This chamber is characterized for TG-51 procedures.

Exradin® A19MR Ion Chamber, Classic Farmer-type, 0.62cc part of complete solution for: Absolute Dosimetry

Collecting Volume

  • 0.62 cm3

Nominal Calibration Factor

  • 5 R/nC

Centroid of Collecting Volume

  • 13.0 mm from tip of chamber

Collector Diameter

  • 1.0 mm

Outside Diameter Sensitive Region

  • 7.1 mm

Shell Wall Thickness

  • 0.5 mm

Shell, Collector, and Guard Material: Shonka Air-Equiv. plastic C552

Included 60Co Buildup Cap: Wall thickness of 2.8 mm; constructed of C552

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