The QUART didoEASY meters are designed for users who emphasise high precision in dosimetric applications but do not require the performance of a full-range dosemeter package.

QUART didoEASY meters can be used to measure parameters which are essential for service and quality assurance operations at x-ray equipment such as dose, dose rate and time. Of course, as with all QUART meters – with maximum precision.

- kVp and PPV measurement available in the QUART didoEASY+ M version.

- Direct-HVL and kVp / PPV measurement available in the QUART didoEASY++ M version.

Since the meters do NOT require any pre-setting procedure, measurement results are acquired very quickly:

1. Position the detector and switch on the didoEASY meter...

2. Set the x-ray equipment to the desired parameters...

3. Expose... - and simply read all measurement information from the meter‘s display. The QUART didoEASY M meters automatically compensate for Mo/Mo beam quality. Corrections factors are provided for further radiation qualities.

Technical specifications

General Features

• Exposures: one to acquire all parameters
• Mode: auto-start, auto-stop & auto-reset
• Power supply: Rechargeable Li Ion accu
• Battery time: approx. 120 hrs. until recharge required
• Base size: 17x7x4.5cm (LxWxH)
• Base weight: 200 g
• Detector size: 6.0x1.8x0.5cm (LxWxH)
• Detector weight: negligible (!)

Specifications

didoEASY M    basic configuration

• Dose: 0.2 µGy - 999 Gy (Uncertainty: ±5% @ 25-40 kV / Resolution: 0.01 nGy)
• Dose Rate: 0.3 µGy/s - 1 Gy/s (Uncertainty: ±5% over full range / Resolution: 0.1 nGy/s)
• Time: 0.5 ms - 300 s (Uncertainty: ± 0,5% / Resolution: 0.1 ms)
• Pulses: 1 - 9999 (Uncertainty: ± 1 pulse)
• Pulse Rate: 0.1 - 250 pulses/s (Uncertainty: ± 0.05 pulses/s)

didoEASY+  M   - features added kV measurement 

• Dose: 0.2 µGy - 999 Gy (Uncertainty: ±5% @ 25-40 kV / Resolution: 0.01 nGy)
• Dose Rate: 0.3 µGy/s - 1 Gy/s (Uncertainty: ±5% over full range / Resolution: 0.1 nGy/s)
• Time: 0.5 ms - 300 s (Uncertainty: ± 0,5% / Resolution: 0.1 ms)
• Pulses: 1 - 9999 (Uncertainty: ± 1 pulse)
• Pulse Rate: 0.1 - 250 pulses/s (Uncertainty: ± 0.05 pulses/s)
• kVp / PPV: 25 – 35 kV (Uncertainty: ±5% at calibrated reference points / Resolution: 0.1 kV); Exposure conditions: Mo/Mo; HVL 0.6 – 2.2 mm Al eq., correction factors provided for further radiation qualities

didoEASY++  M   - features added kV and direct-HVL measurement

• Dose: 0.2 µGy - 999 Gy (Uncertainty: ±5% @ 25-40 kV / Resolution: 0.01 nGy)
• Dose Rate: 0.3 µGy/s - 1 Gy/s (Uncertainty: ±5% over full range / Resolution: 0.1 nGy/s)
• Time: 0.5 ms - 300 s (Uncertainty: ± 0,5% / Resolution: 0.1 ms)
• Pulses: 1 - 9999 (Uncertainty: ± 1 pulse)
• Pulse Rate: 0.1 - 250 pulses/s (Uncertainty: ± 0.05 pulses/s)
• kVp / PPV: 25 – 35 kV (Uncertainty: ±5% at calibrated reference points / Resolution: 0.1 kV); Exposure conditions: Mo/Mo; HVL 0.6 – 2.2 mm Al eq., correction factors provided for further radiation qualities
• Direct-HVL: 0.1 – 11 mm Al (HVL output, Uncertainty: ±8% / Resolution: 0.1 mm Al); Internal filtration 0.1 – 12.5 mm Al equivalent; 25-40 kV range

* S A Mitchell and C J Martin, Comparison of ionisation chamber and semiconductor detector devices for measurement of the dose–width product for panoramic dental units, J. Radiol. Prot. 33 321 (2013).

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