Spherical Ion Chambers

Exradin Spherical Ion Chambers are relied upon worldwide for precise measurement of radiation exposure and exposure rates. They are easily positioned for in-air measurements.

The Exradin Advantage

  • Ideal for calibration laboratories, research applications, manufacturing and accelerator room scatter measurements.
  • Precise in-air exposure measurements through spherical design.
  • Obtain accurate measurements in any direction without radiation absorption by the body of the chamber.

Products

Exradin A3 Ion Chamber

3.6 cc collecting volume is ideal for laboratory transfer standards and secondary standard for exposure measurements.

Exradin A4 Ion Chamber

30 cc collecting volume is ideal for laboratory transfer standards, secondary standard for exposure measurement and integrating exposure over a large area.

Exradin A5 Ion Chamber

100 cc collecting volume is ideal for secondary standards for exposure measurement, integrating exposure over a large area and room scatter measurements.

Exradin A6 Ion Chamber

800 cc collecting volume is ideal for secondary standards for exposure measurements, integrating exposure over a large area and room scatter measurements.

Exradin A8 Ion Chamber

15,700 cc collecting volume is ideal for secondary standards for extremely low exposure measurements, integrating exposure over a large area and room scatter measurements.

Specifications

  Exradin A3 Exradin A4 Exradin A5 Exradin A6 Exradin A8
Collecting Volume 3.6 cm3 30 cm3 100 cm3 800 cm3 15,700 cm3
Outside Diameter of Shell 19.6 mm 39.1 mm 63.1 mm 120.4 mm 323.2 mm
Inside Diameter of Shell 19.1 mm 38.1 mm 57.2 mm 114.4 mm 311.2 mm
Shell Wall Thickness 0.25 mm 0.5 mm 3.0 mm 3.0 mm 6.0 mm
Collector Diameter 2.1 mm 4.1 mm 6.5 mm 11.6 mm 22.4 mm
Collector Length 13.3 mm 24.9 mm 37.3 mm 74.0 mm 166.7 mm
Shell, Collector, and Guard Material A A A A A
Nominal Air Kerma Calibration Factor 9.0E+8 R/C 1.1E+8 R/C 3.3E+7 R/C 4.2E+6 R/C 2.1E+5 R/C
Nominal Leakage +/-10 fA +/-10 fA +/-10 fA +/-10 fA +/-10 fA
Maximum Polarizing Voltage 1000 VDC 1000 VDC 1000 VDC 1000 VDC 1000 VDC
Waterproof No No No No No
Included Build-up Cap None None 60Co integral 60Co integral 60Co integral

Support

Product Resources

Publications, tech notes, testimonials, and other resources to support Spherical Ion Chambers.

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Publications

View publications related to this product from experts in the fields of medical physics and oncology.

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Tech Notes

Find detailed instructions on how to setup and execute common processes from our experienced technicians.

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