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Exradin d1v 1400

Machine QA

Exradin® D1V Diode Detector Ideal for water scanning

The D1V's diode face is perpendicular to the beam when upright, making it ideal for photon scanning applications and use in water phantoms and the Lucy 3D QA Phantom.

Exradin® D1V Diode Detector part of complete solution for: Annual QA

Diode Type

  • P-type Si diode, unshielded

Materials

  • C552 shell for EMI shielding and durability, potted with near-water equivalent epoxy to eliminate air gaps

Outside Diameter

  • D1V (REF 92740): Ø 6.88 mm (0.271”) x 46.2 mm (1.817”) long, D1H (REF 92741): 6.88 mm (0.271”) x 6.88 mm (0.271”) x 34.8 mm (1.37”)

Diameter of Sensitive Area

  • 1 mm2 x ~0.05 mm thick

Effective Depth Below Surface

  • 0.8 mm - Indicator marks or lines clearly identify internal diode orientation and active face

Intended Energy Range

  • Photons: 60Co to 25 MV

Low-Noise Triaxial Cable

  • 50 ohms, 29 pF/ft, 1.5 m long

Connector availability

  • Standard BNC triax, with HV bias capability disabled. Other connector options such as TNC or type M may be available upon request.

Waterproof

  • Yes, may be used in water phantoms, designed to mount cleanly and easily to available chamber holders.

Operating Voltage

  • 0 VDC bias (protected from accidental high voltage application)

Signal Polarity

  • Positive

Radiation response, typ

  • ~5 nC/Gy

Leakage current, typ

  • <100 fA (typical, depends on electrometer used)

Temperature dependence, typ

  • <0.4 % / °C

Sensitivity decrease (at 6 MV)

  • <1.0 % per kGy

Dose to pulse dependency

  • > 99.5% over relevant clinical range.

Dose linearity

  • > 99.9%

Field size dependency

  • > 97.0%

Intended Field size for use

  • up to (20 x 20) cm2

Directional Dependence

  • < ± 0.5% tilting ± 20

Operating Parameters

  • Temperature: 15 to 35 °C

Relative Humidity

  • 20 to 80% non-condensing

Pressure

  • 650 to 770 mmHg

Temperature

  • -15 to 50 °C

Relative Humidity

  • 10 to 95% non-condensing

Pressure

  • 600 to 800 mmHg

Product Standards Compliance

  • IEC 60601-11, IEC 607311, WEEE, RoHS

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Tech Notes

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