CC25 Ionization Chamber

CC25 is intended for absolute and relative dosimetry of photon, electron, and proton beams in radiotherapy. Measurements can be performed in air, water phantoms, or solid phantoms. 

CC25 is a high spatial resolution, small volume chamber. It is waterproof, vented through a waterproof sleeve, and fully guarded.

Used for Workflow

Detectors RT

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Features

Inner dimensions

Inner dimensions

  • Active volume: 0.25 cm3
  • Total active length: 10 mm
  • Cylinder length: 7 mm
  • Inner diameter of outer electrode: 6.0 mm
  • Wall thickness: 0.4 mm (70 mg/cm2 )
  • Diameter of inner electrode: 1.0 mm
  • Length of inner electrode: 7.5 mm

Operational characteristics

Operational characteristics

  • Polarizing voltage: ±300 V (max. ±500 V)
  • Typical leakage current: 5 fA
  • Recommended pre-irradiation: 5 Gy
  • Typical sensitivity: 7.5 nC/Gy
  • Guard potential: ±300 V (max. ±500 V)
  • Temperature range: 15 °C – 35 °C
  • Relative humidity range: 20 % – 80 %

Inner dimensions

  • Active volume: 0.25 cm3
  • Total active length: 10 mm
  • Cylinder length: 7 mm
  • Inner diameter of outer electrode: 6.0 mm
  • Wall thickness: 0.4 mm (70 mg/cm2 )
  • Diameter of inner electrode: 1.0 mm
  • Length of inner electrode: 7.5 mm

Operational characteristics

  • Polarizing voltage: ±300 V (max. ±500 V)
  • Typical leakage current: 5 fA
  • Recommended pre-irradiation: 5 Gy
  • Typical sensitivity: 7.5 nC/Gy
  • Guard potential: ±300 V (max. ±500 V)
  • Temperature range: 15 °C – 35 °C
  • Relative humidity range: 20 % – 80 %

Technical specifications

Cavity Model

Cavity Volume (cm³)

Cavity Length (mm)

Cavity Radius (mm)

Wall Material

Wall Thickness (g/cm²)

Central Electrode Material

Water-proof

CC04

0.04

3.6

2

C552

0.07

C552

Y

CC08

0.08

4

3

C552

0.07

C552

Y

CC13

0.13

5.8

3

C552

0.07

C552

Y

CC25

0.25

10

3

C552

0.07

C552

Y

Technical data is subject to change without prior notice. Depicted product images and specifications may differ from the actual scope of delivery.

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Brochures

DETECTORS - For Relative and Absolute Dosimetry
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