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 exposure time.

Without the need for any pre-setting procedure, measurement results are acquired very quickly.

The QUART didoEASY automatically compensates for most beam qualities. No further corrections or compensations are required.

Specifications:
● Dose: 0.2 µGy - 999 Gy (Uncertainty: ±5% @ 25-160 kV / Resolution: 0.01 nGy)
● DLP*: 0.2 µGy*cm - 999 Gy*cm (Uncertainty: ±5% @ 25-160 kV / Resolution: 0.01 nGy*cm)
● 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)
● Direct-HVL (didoEASY++): 0.1 – 11 mm Al (HVL output, Uncertainty: ±8% / Resolution: 0.1 mm Al); Internal filtration 0.1 – 12.5 mm Al equivalent (25-35 / 40-130 / 25-130 kV for M / R / MR detectors)
● kVp / PPV (didoEASY+): 25 – 35 kV(didoEASY+ M / MR); 50 – 130 kV (didoEASY+ R / MR) (Uncertainty: ±5% at calibrated reference points / Resolution: 0.1 kV); Exposure conditions: Mammo: Mo/Mo; HVL 0.6 – 2.2 mm Al eq., correction factors provided for further radiation qualities / R&F: HVL 1.4 – 7.0 mm Al eq.

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The QUART didoMAS meters automatically set the range of measurement. No pre-setting is required for direct reading of mA, mAs and time parameters.

The meters can be used throughout the complete range of radiographic equipment including fluoroscopic or mammography exposures.

The meter is powered by a rechargeable battery. One charge is sufficient to last approximately 80 hours of continuous use.
Recharging the meter until full takes only between 3–4 hours. A warning will appear on the display when the battery is running low.

The QUART didoMAS has an extra-long connection cable included in delivery.

The connection between circuit and the detector unit is polarity independent. The mA is refreshed and displayed every second.

Specifications

• mAs: 0.001 - 9999 mAs (Resolution: 0.01 mAs)
• mA: 0.1 - 999 mA (Refresh during exposure, Maximum, Average / Resolution: 0.01 mA)
• Time: 1.0 ms – 300 s (Uncertainty: ±1,0% / Resolution: 0.1 ms)

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For quality control on x-ray equipment with digital storage screen (CR) or CCD image detectors (DR).
It does not contain planar grid structures, for a better detection of artifacts.

Complies with DIN 6868-13, -58 and -150 as well as IEC 61223-3-1 and -2-11.

Technical specifications

• Enhanced phantom format: 330 x 330 cm
• Design approach: Simplified design for precise artefact detection
• Dynamic step wedge: 7 Steps; thickness 0 – 2.3 mm
• Signal normalisation: Homogeneous area in the phantom center, 10 x 10 cm
• High-contrast resolution: Line Pair Bar Pattern (Type 38 / Pb 0.05 mm / 45°)
• Low-contrast resolution: 6 Test objects (Aluminium discs; 0.1 – 0.7 mm)
• X-ray field alignment: Field size markings for all major fields-of-view
• Center: cross-marker, also visible when QUART ZTB beam alignment tool is in use
• Vertical positioning: Wire mount system available for tests of wall-mounted units.
• Size: 330 x 330 x 10 mm (L x W x H)

Parameters

• Spatial Resolution
• Low-Contrast Resolution
• Radiation Field Alignment
• Image Homogeneity
• Signal Normalisation

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The QUART Pinhole Cameras are test tools designed to be used in conventional as well as digital radiography & fluoroscopy x-ray applications for precise focal spot assessment.

The tools are designed to precisely measure both length and width of the effective focal spot size of x-ray equipment projected down the central ray in the x-ray field.

Technical specifications

• Dimension: 176 x 169 mm, marked pinhole area
• Can also be used with a light visor adapter (see art. 13240)
• Thickness: 3.1 mm
• Pinhole Mask: Metal foil w/ bead pattern
• Covered by 2 protective layers
• Details: Can be inserted into the light visor rails on the tube head
• Fits every major brand‘s equipment, 2 insert options

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The QUART mam/digi EPQC phantom is designed to be used as a universal tool for QA/QC routine testing in Digital and Analog Mammography. Due to its concept, the phantom creates a link between technical and clinical image quality. It can also be used as QA tool for Digital Tomosynthesis.

Unique in its kind, for the first time the QUART mam/digi phantom incorporates so-called Landolt Ring Structures. Similar to the gold structures of the CDMAM phantom, the Landolt structures are meant to verify low contrast and perceptibility limits. However, the Landolt objects are developed to compare better to the morphology of micro calcifications than any other available structure within current mammography QA/QC phantoms.

Only one exposure is required to collect all necessary parameters to determine the imaging quality of the x-ray system. After the exposure, the image can be visually checked or automatically evaluated through the unique QUART MammoPro software module.

Technical specifications

• Step wedge: 12 physical steps 5 – 40 mm PMMA
• Additional 3 Aluminum step-wedge (step 10-12)
• Micro-calcification strip creates a step wedge with a total of 24 steps
• Contrast details: 72 Landolt Cs, Group of 6 on each step
• Low-contrast: Row of low-contrast numbers on step 1 - 12
• Nyquist frequency/MTF: Line spread function test object
• Field alignment: 2 rows of radiopaque spheres to check field alignment at thorax side
• Detector slot: Dosimeter slot for reproducible dose measurements
• Insert area: For additional test inserts (e.g. Ghosting / artifacts)
• Size: 240 x 180 x 46 mm (L x W x H)

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Digital Subtraction Angiography QA Test Phantom

The QUART DSA phantom is designed for maximum precision in QA/QC of Digital Subtraction Angiography equipment.

The QUART DSA phantom was designed to obtain maximum accuracy in QA/QC of Digital Subtraction Angiography equipment by simulating the Contrast injection process.

With a Type B sliding design, it allows longitudinal sliding technique to minimize structural motion artifacts in the test image. Through this method it is possible to maximize the performance of the QA/QC, compared to other phantoms available in the market that are more susceptible to exceed the limits of artifacts caused by forced transverse movements.

After simulating the injection process, the QUART DSA immediately reveals the lateral borders of the contrast wedge. The low contrast steps are clearly visible and can be well defined in the test image.

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Easy-to-use measurement device, via Geiger-Muller-counter, for immediately detection of ionizing radiation (alpha-, beta-, gamma- and X-ray-radiation).

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Fits the “ALPHAplus” for the constancy test of digital X-ray-equipment (directradiography and fluoroscopy; not for dental or mammography).
Because of its shape the sensor is suitable for insertion into the patientequivalentfilter for use with near-the-tube measurements as well as an external sensor.

Energy range: 50kV – 155kV
Effective dose range: 0,1mGy/s – 500mGy/s

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Fits the “ALPHAplus” for the constancy test of all analog X-ray equipment and analog and digital fluoroscopic techniques.
Not for digital radiography or mammography X-ray equipment!
The sensor is located above the patient-equivalentfilter (25mm Al) under the insertion plate.

Energy range: 50kV – 155kV
Effective dose range: 0,1mGy/s – 500mGy/s

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Testphantom per German standard (DIN 6868/13) for constancy tests of digital radiography equipment (e.g. storage phosphor or full digital).

With “DIGRAD A+K” you are able to measure all parameters required by above standard:
– dynamic range
– contrast resolution
– homogeneity
– spatial resolution
– position and size of the effective radiation field

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