Universal QA solution for PBS Pencil Beam Scanning
- Reconstruct the Bragg peak for a single spot within seconds
- Instant absolute range verification within one second for weekly and monthly QA
- Water equivalent material for equivalent scattering properties
- Safe time with reduced effort to correct data at TPS level
- Verify the full clinical range up to 230MeV
- Unique multi-layer ionization chamber design
- Verify the TPS library periodically without setting up your water tank
Technical specs
MatriXX One Detector
- Sensor type: Vented parallel ion chamber
- Number of sensors 1020, arranged in a 32 × 32 grid
- Active measurement area 24.4 cm × 24.4 cm
- Chamber diameter 4.50 mm
- Chamber height 1.00 mm
- Chamber volume 0.016 cm3
- Distance between chambers 7.619 mm
- Nominal sensitivity 0.79 nC/Gy
- Dose Range 6 cGy – 33.7 Gy 1
- Minimum sampling period: 20 ms
1 in this range the detector is linear within ±1.0%
2 at this value of charge per pulse the detector sensitivity is measured to be 99.4% ±0.4% compared to its value at 0.75 pC/pulse.
3 this value has been determined under a pulsed proton beam with 1 kHz pulse repetition frequency and protonic charge of 6.5 pC per single pulse.
- Maximum protonic charge per pulse 6.5 pC/pulse 2
- Maximum dose rate 48.8Gy/min 3
- Minimum dose rate 5 cGy/min
- Bias voltage 500 ± 30 V
- Effective point of measurement 7 mm below the housing surface, indicated by a marker on the side of the housing. Its water equivalent depth is 7.3 mm. Absorber material on top
- ABS (density 1.06 g/cm3)
- Outer dimensions: 560 × 60 × 320 mm (l × h × w)
- Weight: 10.5 kg
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