Machine QA
Exradin® A11TW Ion Chamber, Spokas Thin Window Parallel Plate, 0.93cc
Tailored for use in superficial therapy and low energy diagnostic beams. The thin-window design provides nearly constant response over the entire diagnostic energy range.
Exradin® A11TW Ion Chamber, Spokas Thin Window Parallel Plate, 0.93cc part of complete solution for:
Absolute Dosimetry
Collecting Volume
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0.92 cm3
Nominal Calibration Factor
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3.4 R/nC
Centroid of Collecting Volume
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1.5 mm from top of window
Collector Diameter
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20.0 mm
Window-Collector Gap
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3.0 mm
Window
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Polyimide film, 3.86 mg/cm2
Window Support Rings, Collector, and Guard Material
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A11TW - Shonka Air-Equiv. plastic C552
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P11TW - Polystyrene-Equiv. plastic D400
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T11TW - Shonka Tissue-Equiv. plastic A150
Included Waterproofing Cap
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Wall thickness of 1.0 mm; constructed of acrylic; TG-51 compliant
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