MiniPhantom & In-Air Comparison Jig

Measure head-scatter factors down to a 3 cm x 3 cm field size without side scatter from a water phantom.

Versatile and Easy to Use

  • Scribed lines help quickly align the collecting volume of the ion chamber.
  • Stand positions the MiniPhantom horizontally for measuring beams.

Account For Stray Radiation

  • Measure head-scatter factors with standard farmer-type ion chambers.
  • Small phantom stand minimizes scatter and can be used as an in-air comparison jig, positioning two ion chambers side-by-side in a reproducible manner.

Specifications

MiniPhantom & In-Air Comparison Jig
MiniPhantom  
REF Number 72208-C07 - MiniPhantom for Model A12 Exradin Farmer-type Chamber
72208-C10 - MiniPhantom for Model A12 Exradin Farmer-type Chamber with In-Air Comparison Jig
Diameter 3 cm (1.18 in)
Length 20 cm (7.87 in)
Centroid of chamber volume 10 cm from end of phantom
Material Water-equivalent plastic
Alignment Marking Fiducial marks denote chamber centroid of volume
In-Air Comparison Jig  
REF Number 72193
Height (Center Rod) 40 cm (15.75 in)
Height (Chamber Holder) 2.22 cm (1 in)
Width (Chamber Holder) 6.35 cm (2.50 in)
Length (Chamber Holder) 2.22 cm (1 in)
Chamber clamp size accommodations From 1/4” to 1/2” diameter for in air comparisons
Base 33.02 cm (13 in) equilateral triangle
Material (Center Rod) Carbon Fiber
Material (Chamber Holder) Polycarbonate
Material (Base) Acrylic
Material (Screws) Nylon
Alignment Marking Fiducial marks on clamp assist in laser alignment

Support

Product Resources

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Publications

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Tech Notes

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