MatriXX - Universal Detector Array

MatriXX ionization chamber detector arrays are designed for fast and accurate verification of patient dose, as well as Linac QA.

  • Unique universal detector for Patient QA and Machine QA: Both applications powered by the myQA - global QA platform
  • Fast and intuitive, from measurement setup to analysis
  • Most accurate for rotational and IMRT QA: Shortest 20ms data sampling time, high dose rate, high spatial resolution with 1020 ionization chambers
  • Most reliable solution with more than 1500 systems in the world

Description

MatriXX and myQA Patients is the solution for high dose rate and rotational 2D plan verification

MatriXX is a universal detector also suited for MachineQA

    MatriXX Evolution:

    Proven detector based on more than 1500 MatriXX systems worldwide

    • Combine with the miniPhantom or MultiCube and Gantry Angle Sensor, to attain the most accurate measurements for verification with myQA Patients.
    • Optimized for conventional, IMRT, and rotational cases delivered in standard dose rate mode 
    • Also suitable for high-dose-rate cases (up to 12 Gy/min)

     

    MatriXX FFF 

    Ultimate High-Dose-Rate Solution (up to 48 Gy/min)

    • Fast: High-end design for workflow efficiency, from setup to measurement and analysis.
    • Flexible: Determined for high-dose-rate (up to 48 Gy/min), Flattening-Filter-Free, and conventional measurements.
    • FFF Proven: Supports current and foreseen high-dose-rate delivery systems including Varian, Elekta, and Siemens.

    Technical specs

    MatriXX Evolution

    • Sensor type: Vented parallel ion chamber 
    • Number of sensors:1020, arranged in a 32 × 32 grid except for the 4 corner positions 
    • Active measurement area: 24.4 cm × 24.4 cm
    • Chamber diameter: 4.5 mm
    • Chamber heigh: 5.0 mm
    • Chamber volume: 80 mm3
    • Distance between chambers: 7.62 mm (center to center)
    • Nominal sensitivity: 2.4 nC/Gy
    • Collection efficiency (pulsed beam at 300 Hz - 360 Hz PRF): ≥ 99.0% at 0.3 mGy/pulse, ≥ 98.5% at 0.6 mGy/pulse, ≥ 97.0% at 1.1 mGy/pulse
    • Dose Rate Range: 0.02 – 12 Gy/min
    • Dose Rate Dependence: < ±1.0%
    • Dose Range: 0 – 10 Gy
    • Bias voltage: 500 ± 30 V
    • Absorber material on top: 3 mm ABS Tecaran (density 1.06 g/cm3)
    • Water equivalent depth: 3.1 mm
    • Effective point of measurement (Peff): 3.5 mm below the surface, indicated by engraved markers on the housing sides.
    • Deviation from Linearity: ≤ 1% for dose ≥ 0.02 Gy

    MatriXX FFF

    • Sensor type: Vented parallel ion chamber
    • Number of sensors: 1020, arranged in a 32 × 32 grid except for the 4 corner positions
    • Active measurement area: 24.4 cm × 24.4 cm
    • Chamber diameter: 4.5 mm
    • Chamber height: 2.0 mm
    • Chamber volume: 32 mm3
    • Distance between chambers: 7.62 mm (center to center)
    • Nominal sensitivity: 1.4 nC/Gy
    • Maximum dose rate: 48 Gy/min
    • Charge collection efficiency (pulsed beam at 300 Hz PRF): ≥ 99.0% at (1.0 mGy/pulse), ≥ 98.5% at (2.0 mGy/pulse)
    • Minimum dose rate: 0.02 Gy/min
    • Bias voltage: 500 ± 30 V
    • Absorber material on top: 6 mm ABS Tecaran (density 1.06 g/cm3)
    • Water equivalent value: 6.4 mm
    • Effective point of measurement (Peff): 6.5 mm below the surface, indicated by engraved markers on the housing sides.
    • Deviation from Linearity ≤ 1% if dose ≥ 0.15 Gy

     

    myQA Patients
    (3.14 MB)

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