IC256-45

256 Strip QC Ion Chamber


The largest ionization chamber available. Ideal for beam position readback at isocenter. Sized to fit the entire scanning field without having to reposition it.

Features

  • Large 45 cm by 45 cm sensing area
  • Alignment marks on beam entrance window for accurate optical setup at isocenter
  • Can be imaged by X-ray patient imager for accurate alignment to patient coordinate system
  • Lightweight and robust
  • 256 1.75 mm strips in each axis
  • Robust carbon-fiber windows and precision photo-etched readout electrodes on thin FR4 substrates for low-scattering
  • High voltage sense loopback

Applications

  • Particle therapy spot position calibration
  • Particle therapy system commissioning
  • Particle therapy system QA
  • High energy ion beam diagnostics

Expertly Built


Electrodes patterned with unique laser technology. Assembled and tested by highly skilled technicians in our dedicated assembly facility.

  • Rigorously tested beyond normal operating range to ensure uniformity
  • Envirmonmental sensor measured against externally calibrated sources
  • Each ion chamber is fully retested after it has been opened
  • Real calibrated radioactive source is used as reference
  • Full test documentation can be provided for each individual instrument

Integrated Environment Sensors


Our ion chambers include integrated sensors for environmental corrections. No need for costly and inconvenient external instruments.

  • Humidity sensor
  • Temperature sensor
  • Pressure sesnor
  • Replacable desiccant

Thin-film Strip Detector


Strip detectors have a balance between accuracy on beam position and noise levels. Our strip detectors offer the highest resolution and lowest noise on the market.

  • Laser-machined polyimide electrode substrates
  • Absolute minimal beam scattering
  • Radiation hard
  • High geometric precision
  • Gold plated readout electrodes








Ion Chambers


The ionization chamber or ion chamber is conceptually the simplest of all gas-filled radiation detectors, and is widely used for the detection and measurement of ionizing radiation. It is the preferred device for proton therapy dose and beam position monitoring due to a combination of robustness, gain stability, very low material budget in the beam path and availability of large continuous sensing areas.

Pyramid offers a wide range of ionization chambers for proton and heavy ion therapy applications. Advanced electrode coating and patterning allows the creation of precise strip and pixel patterns for position readout. A wide range of sensitive areas and electrode gaps is provided to suit different system geometries and beam currents.


Proton Therapy


Proton therapy is well established for the treatment of localized cancer tumors, especially when there are vital organs close by. This healthy tissue sparing makes it the method of choice for maintaining quality of life and especially for treating children. The proton beam delivery is fast and painless.

Proton therapy centers worldwide use Pyramid sensors, electronics, and software. Pyramid offers products for complete systems, sub-systems, or components. For more information see our Pencil Beam Scanning Brochure



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