X-ray QA dosimeter didoEASY MR

Model configurations (table)
QUART didoEASY MR — Art. 11117 — Basic configuration
QUART didoEASY+ MR — Art. 11117+ — Added kV measurement
QUART didoEASY++ MR — Art. 11117++ — Added kV and Direct‑HVL measurement

Overview
The QUART didoEASY series are X‑ray multi‑meter instruments designed for precise dosimetric measurements without the complexity of a full dosemeter system. Intended for service and quality assurance (QA) tasks in R&F, dental and mammography equipment, the meters deliver rapid results without pre‑set procedures.

Operation

• Position the detector and switch on the didoEASY meter.
• Set the X‑ray equipment to the desired exposure parameters.
• Perform exposure and read all measurement data on the meter display.

Detector and measurement notes
The R detector provides automatic compensation for common medical X‑ray beam qualities (RQR and RQA series, IEC 61267:2005). The M detector compensates for Mo/Mo mammography beam quality; correction factors are provided for other qualities. The detector also measures integrated dose‑width product (DWP) for dental panoramic equipment (feature comparable to the QUART dido2000 series).

Technical specifications
General features

• Exposures: single exposure to acquire all parameters
• Mode: auto‑start, auto‑stop & auto‑reset
• Power supply: rechargeable Li‑Ion battery
• Battery time: approx. 120 h until recharge required
• Base size: 17 x 7 x 4.5 cm (L x W x H)
• System weight: 200 g
• Detector size: 6.0 x 1.8 x 0.5 cm (L x W x H)

Specifications — didoEASY MR (basic configuration)

• Dose: 0.99 µGy – 999 mGy (Uncertainty: ±5% @ 25–40 kV (M) & @ 50–150 kV (R); Resolution: 0.01 µGy)
• DLP*: 0.99 µGycm – 999 mGycm (Uncertainty: ±5% @ 50–120 kV; Resolution: 0.01 µGycm)
• Dose rate: 0.5 µGy/s – 999 mGy/s (Uncertainty: ±5% @ 50–150 kV; Resolution: 0.1 µGy/s)
• Time: 1.0 ms – 296 s (Uncertainty: ±1.4 ms; Resolution: 0.1 ms)

Specifications — didoEASY+ MR (added kV measurement)

• Dose, DLP, dose rate and time: same ranges, uncertainties and resolutions as basic configuration
• Pulses: 1 – 9999 (Uncertainty: ±1 pulse)
• Pulse rate: 0.1 – 250 pulses/s (Uncertainty: ±0.1 pulses/s)
• kVp / PPV measurement ranges: 25 – 35 kV (M detectors); 50 – 130 kV (R detectors). Uncertainty: ±5% at calibrated reference points; Resolution: 0.1 kV. Exposure conditions: Mammo (Mo/Mo; HVL 0.2 – 0.45 mm Al eq.) and R&F (HVL 1.5 – 10.5 mm Al eq.) with correction factors provided.

Specifications — didoEASY++ MR (added kV and Direct‑HVL measurement)

• Dose, DLP, dose rate, time, pulses and pulse rate: same ranges and uncertainties as didoEASY+ MR
• kVp / PPV measurement ranges: 25 – 35 kV (M detectors); 40 – 125 kV (R detectors). Uncertainty: ±5% at calibrated reference points; Resolution: 0.1 kV.
• Direct‑HVL:
• R: 1.1 – 13.3 mm Al (HVL output; Uncertainty: ±10%; Resolution: 0.1 mm Al); internal filtration 1.5 – 50 mm Al; 40–125 kV
• M: 0.2 – 0.45 mm Al (HVL output; Uncertainty: ±10%; Resolution: 0.1 mm Al); internal filtration Mo/Mo; 25–35 kV

Technical summary

• Series: X‑Ray Multi‑Meter series for Service and QA in R&F, Dental and Mammography
• Modes: auto‑start, auto‑stop, auto‑reset
• Battery: rechargeable Li‑Ion, ~120 hours operation
• Physical: base 17 x 7 x 4.5 cm; weight 200 g; detector 6.0 x 1.8 x 0.5 cm
• Dose range: 0.99 µGy – 999 mGy (±5% typical uncertainty in specified kV ranges)
• DLP range: 0.99 µGycm – 999 mGycm (±5% typical uncertainty)
• Dose rate range: 0.5 µGy/s – 999 mGy/s (±5% typical uncertainty)
• Time range: 1.0 ms – 296 s (±1.4 ms uncertainty)
• Pulses: 1–9999 (±1 pulse); Pulse rate: 0.1–250 pulses/s (±0.1 pulses/s)
• kVp/PPV and Direct‑HVL measurement available in extended versions (didoEASY+ MR, didoEASY++ MR) with specified ranges and uncertainties
• Detector compensation: R detector for RQR/RQA beam qualities; M detector for Mo/Mo mammography beam quality