The Visi-X measures the alignment between radiation and light field and is a proven concept in Quality Control and Service. It is a cassette shaped instrument for checking the light and radiation field coincidence for X-ray equipment. The Visi-X can also be used for checking of the centering of the bucky tray.
The Visi-X is based on a after-glowing phosphorus screen. Simply darken the X-ray room and place your Visi-X under the X-ray tube. Adjust the light field and make your exposure. The radiation field will immediately be visualized by the glow of the special phosphor compound. Misalignment down to ±1 mm will be clearly shown on the built-in scales (afterglow will last for several minutes.) No film is needed; therefore, no time is lost going back and forth to the film developer, if there is one.
The phosphor is non-radioactive and is covered by perspex plates. A daylight filter protects the phosphor from accidental excitation from light sources. The lifetime expectancy of the phosphor is not affected by light or X-rays having an energy within the recommended range.
Size 382738 B
|Operating temperature||15 - 45 °C|
|Dimensions||320 x 276 x 11 mm (without daylight filter)|
|Equivalent cassette size||24 x 30 cm|
|Other||Daylight filter, magnetic lock, ruler, documentation chart|
|Field positioning inaccuracy||< ±0.5 mm|
|Centering inaccuracy||< ±0.5 mm|
|circular fields||5-6 cm diameter|
|square fields||5 x 5, 10 x 10, 15 x 15 and 20 x 20 cm|
|indicated deviation||±10 mm|
|Scale inaccuracy||±0.1 mm|
|Recommended output||130 µGy/mAs at 100 kVp and 75 cm S.I.D.|
|Usable energy range||15 - 200 keV|
Article Nr: 9705001-00
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