Texture image
Mini phantom main 1400

Machine QA

MiniPhantom with In-Air Comparison Jig Head-Scatter Measurement

Measure head-scatter factors down to a 3 cm x 3 cm field size simply and easily without side scatter from a water tank.

MiniPhantom with In-Air Comparison Jig Download:

MiniPhantom with In-Air Comparison Jig Overview

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.


  • REF 72208-C07
    MiniPhantom for Model A12 Exradin Farmer-type Chamber
  • REF 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
  • 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)
  • Material (Base)
  • Material (Screws)
  • Alignment Marking
    Fiducial marks on clamp assist in laser alignment


Tech Notes

Please sign in or register to the customer care portal to view tech notes.

Have Questions About the MiniPhantom with In-Air Comparison Jig?

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Join our Mailing List