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Lumina XRMS Series III Hardware Manual Chapter 6 | Components and Specifications 39
6.3 X-Ray Scintillation Module
The main component of the X-Ray scintillation module is a cesium iodide (CsI) screen (scintillation
plate) that is used to convert the image shadow produced by the X-rays into visible light which can
be imaged by the camera. The scintillation plate is composed of a structured layer of CsI salt on a
substrate and is housed in a plastic retainer with a protective glass cover .
The scintillation plate has two positions:
Lower position – For subject height up to 2.8 cm
Upper position – For subject height up to 5.3 cm
See page 49 for instructions on changing the scintillation plate position.
After X-ray imaging, the screen rotates out the way under a protective cover (Figure 6.3). The cover
prevents incidental afterglow from interfering with other imaging modalities, and protects the screen
window from contamination (for example, cleaning liquids).
Table 6.1 X-ray Source Specifications
Item Description
High Voltage Potential 20 to 40 kV
Maximum Current 100 mA
Anode Type Tungsten
Window Beryllium
Spot Size ~300 mm
Cone Angle 46 degrees
Field of View 5, 7.5, 10 cm
Filter Aluminum, 0.4 mm thick
Figure 6.3 Scintillation Plate in Lower Position
Protective
cover
Scintillation
plate
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