Giraffe

Giraffe is a high resolution multi-layer ionization chamber, which consists of 180 large 12 cm diameter electrodes.

TG224

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Save time with reduced effort to correct data at TPS level. Verify the TPS library periodically without needing to set up the water tank.

Technical Specifications

Application: measurement of depth dose distribution in particle therapy
Beam type: single spot pristine and Bragg peak
Chamber type: vented ionization chambers
Chamber size: 12 cm diameter
Range accuracy: ± 0.5 mm WET
Energy range: 33 cm WET
Spatial resolution: 2 mm detector spacing (native resolution)
Dose rate range: 0.5 Gy/min to 15 Gy/min
Signal to noise ratio: max. 0.2 % with 1 cGy integrated dose
Dose linearity: max. 0.5 % from 10 cGy up to 5 Gy integral dose
max. 1 % from 0.5 Gy/min up to 15 Gy/min dose rate
Typical sensitivity: 14.76 nC/Gy
Electrometer: 4 TERA ASICs (each contains 64 independent electrometers)
Channels: 180
Charge resolution: 0.1 pC/count
Sampling time: min. 10 ms
Readout: parallel and synchronous with no dead time
Weight: approx. 10 kg
Dimensions: 43.9 cm (L) x 19.5 cm (H) x 17.5 cm (W)
Power supply: 100-240 V, 50/60 Hz, power cord with US or German power plug included
Network: point to point or Ethernet connection