Radiation/Light Field Analyzer
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.
Protective Daylight Filter
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.
|Detection phosphor Afterglowing rare-earth|
|Operating Temperature||+15°C to +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 Position Anal||yser|
|Field Positioning Accuracy||< ±0.5 mm|
|Centering Accuracy||< ±0.5 mm|
|Scale Range||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 Accuracy||±0.1 mm|
|Recommended Output||130 µGy/mAs at 100 kVp and 75 cm S.I.D.|
|Usable Energy Range||15 - 200 keV|