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VeriDose Photon Diode Detector, Positive, 18-25 MV

VeriDose Photon Diode Detector, Positive, 18-25 MV
VeriDose Photon Diode Detector, Positive, 18-25 MV
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VeriDose Photon Diode Detector, Positive, 18-25 MV.


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VeriDose Photon Diode Detector, Positive, 18-25 MV.

Using the VeriDose PDMQC in conjunction with VeriDose Diode Detectors, you can verify the given dose quickly and accurately during treatment, thus avoiding potential misadministration of radiation.

VeriDose Diode Detectors are solid-state silicon-based radiation detectors that utilize a p-n junction.  These rugged diodes are encased within a biocompatible polystyrene material.  A low noise coaxial cable is used to connect the diode to an electrometer.  When attached to an electrometer, these diodes provide enhanced sensitivity and instantaneous response time.

• Designed to provide superior response, reliability, and performance

• Long-lifetime diodes.  Tested 2 x 106 cGy in high-energy electron beam, the most damaging radiation

• Very low dose rate and temperature dependence

• Hemispherical shape improves isotropic response and reduces angular and field-size dependencies


• Waterproof design with appropriate build-up for all clinical photon and electron energies

• Flat bottom permits secure, easy placement on the patient

• Color-coded for ease of identification

• Dose rate independent

• Responds to photons and electrons

• Responds to dose rates of 1.0 cGy/min to 1000 cGy/min

• Can be used on continuous (60CO) X-ray beams, pulsed (linear-accelerator) X-ray beams, and electron beams

• Optimized for use with Patient Dose Monitors and high-quality medical-grade ionization chamber electrometers

• All diodes are supplied with a non-crimp repairable cable with BNC-M connector


Nominal Sensitivity:  1.5nC/cGy
Sensitivity Volume:  0.25 mm3

Output Polarity:  Positive

Color:  Green

Build-Up Type:  Tu
Build-Up g/cm2:  3.574

Linearity:  <0.1% for dose ranges from 0.01 Gy to 10 Gy <0.1% for dose rates 3 to 5 Gy/min

Reproducibility:  0.2%

Angular Dependence:  <2% ± 60° for lower energy diodes (Items 322-912, 322-913 and 322-914).  <2% ± 10°; <5% ± 60° for higher energy photon diodes and electron diodes.

Sensitivity Loss at 10 kGy:  <15%

Cable Length:  10' (3 meters)

Connector:  Coaxial BNC-M 

Dimensions:  8 mm Ø

Weight:  42 gm

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