Various Measuring Instruments
Quart’s X-ray field measurement devices and high-precision voltmeters and ammeters are designed to enable simple, hassle-free operation by the operator.
They can be used without the need for tedious or complex preliminary settings, and provide highly accurate measurement results.
X-ray Field of View & Fan Beam Measurement Devices
■ QUART Nonius
This is a measuring instrument designed to easily verify X-ray fields and the geometric characteristics of X-rays. The Nonius is highly adaptable, compatible with both analog and digital systems, and can be used to analyze the X-ray fan beam characteristics of CT and dental equipment.As its name suggests, it features exceptional precision, capable of measuring down to 0.1 mm. Due to this accuracy, recent studies have demonstrated that it can also be used for measuring X-ray fields in radiation therapy. The included software clearly visualizes measurement results and is compatible with nearly all PCs running Windows OS. Furthermore, it supports serial imaging, enabling measurements such as displacement in tomosynthesis and CT scans.
[How to Use] Operating the Quart nonius is very simple.
① Connect the nonius to a laptop or tablet (Windows OS) via USB.
② Place the head unit at the measurement position.
③ Use the radiation field or a reference point to adjust the position.
④ Irradiate
⑤ The measurement results are displayed immediately.
- Includes Nonius software, USB cable, and a compact carrying case
- An optional bridge holder is available for easy sensor mounting


| Accuracy/Resolution | ±0.1 mm |
| Exposure Threshold | Dose ≥ 200 μGy Dose rate ≥ 20 μGy/s |
| Minimum radiation dose | Varies (depending on the measuring device) |
| Measurement method | Open measurement (no additional filter required) |
| Connection | USB 2.0 (Plug and Play) |
| Temperature | Operating Temperature: 15–40 °C Storage Temperature: 0–50 °C |
| System Requirements Operating Environment |
Pentium III, 128 MB RAM, 1 USB port Windows 10, 7, Vista, XP |
| Sensor Area | 40 mm (16 sensor elements) X-ray opaque central marker (visualized during test irradiation) Components optimized for the irradiation field and laser marker |
| Weight | 190 g (excluding USB cable) |
| Head Unit Dimensions | 55 x 75 x 15 mm (W x L x H) |
High-precision current/voltage meter
■ QUART didoMAS
Measurements can be taken on virtually all X-ray devices, from general radiography to mammography.
The measurement range is set automatically, requiring no prior configuration. The set includes a custom cable
for connecting the sensor head to the circuitry.
- Display of measurement values updated every second
- Equipped with a rechargeable battery, allowing for approximately 80 hours of continuous use
- Fully charges in 3~4 hours
- Low-battery warning tone

| mAs | Range Error |
0.001 to 9999 mAs ±0.01 mAs or 1% |
| Current | Range Measurement Mode Error |
0.1 to 999 mA ±0.1 mA or 0.5% |
| Irradiation time | Range Mode Error |
1.0 ms to 300 s continuous ±1.0 ms (square wave) |
| Weight | Base Unit Sensor |
180 g 120 g (including cable) |
| Dimensions | Base Unit Sensor |
170 x 70 x 45 mm (LxWxH) 47 x 30 x 40 mm (LxWxH) |