CC13-S Ionization Chamber

Description

The ionization chamber CC13-S is intended for relative dosimetry of photon, electron, and proton beams in radiotherapy. Measurements can be performed in air, water phantoms, or solid phantoms. The CC13-S is a high spatial resolution, small volume chamber. It is waterproof, vented through a waterproof sleeve, and fully guarded. It is designed for axial or lateral beam incidence and for the use in RFA-300 and RFA-200 phantoms only, using the grounded input technology.


Technical specs

Inner dimensions

  • Active volume: 0.13 cm3
  • Total active length: 5.8 mm
  • Cylinder length: 2.8 mm
  • Inner diameter of outer electrode: 6.0 mm
  • Wall thickness: 1.0 mm (1.5 mg/cm2 )
  • Diameter of inner electrode: 1.0 mm
  • Length of inner electrode: 3.3 mm

Operational characteristics

  • Polarizing voltage: ±300 V (max. ±500 V)
  • Typical leakage current: 3 fA
  • Recommended pre-irradiation: 5 Gy
  • Typical sensitivity: 3.8 nC/Gy
  • Guard potential: ±300 V (max. ±500 V)
  • Temperature range: 15 °C – 35 °C
  • Relative humidity range: 20 % – 80 %