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Decoding the MRC 200 Cath/Angio X-Ray Tube

Posted by Garth Immelman

Apr 8, 2019 4:15:00 PM

mrc-for-philips-cathIf you're working with a Philips cath/angio lab like the Allura FD10 or FD20, you’re using an MRC 200 X-ray tube. And just like any X-ray tube, the MRC 200 will need to be replaced occasionally. When that time comes for you (and it's likely to come a few times over the course of your lab's life), you’ll find several product descriptions for the type of MRC 200 tubes in circulation. These descriptions include digits and initials that might not make any sense to you at first. Today, we're breaking these descriptions down so you can make your next major component purchase fully-informed.

MRC 200 Tube Descriptions

Pictured below is an example tube from the MRC 200 series with its full description, MRC 200 0508 ROT-GS 1003 (part # 9890-000-85142). We'll tackle that description segment-by-segment.

mrc-200-tube-descriptors

Other examples include:

Anode Diameter- 200

The "200" refers to the diameter of the tube's rotating anode, 200 millimeters. 

Tube Filament Diameter- 0508, 0407, 0310

The MRC 200 is a two-filament X-ray tube, a small filament and a large filament. In the pictured example, the small filament has a diameter of 0.5 mm and the large filament has a diameter of 0.8 mm hence, 0508. Another common MRC 200 variant has "0407" in this spot and a small filament of .04 mm and large filament of .07 mm (0407). The difference in filament diameter is indicative of the tube's intended use. The MRC 200 0508 is for cardiac systems and the MRC 200 0407 is for angio and neuro systems. 

Housing Style- ROT/ROT-GS 1003/1004/1001

When you see an MRC 200 with a ROT of 1001 it is describing a housing with rubber HV plugs rather than the ROT 1003 or 1004 that has a "candle stick" type end on the HV cables. An MRC 200 0508 with a ROT 1003 is interchangeable with an MRC 200 0508 ROT 1004 but not interchangeable with an MRC 200 0508 ROT 1001

Finally, when you see “GS” in the description it is telling you that the tube has a grid switch. The grid switch eliminates distortion during the brief period when your tube is ramping up its kV for fluoro. Tubes with grid switches are now standard.

Need a Tube?

If you need an MRC 200 tube now or are simply preparing for the day when you will, we can help. Our parts team can find you the right tube and our service team can dispatch the engineering personnel you’ll need to have it installed.  Whatever your particular need might be, we’re ready to help.  Contact us to start planning your next solution.

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This is just one of the many cath/angio lab articles we have for you. If you want to keep reading about systems, parts, service, and news, click here to see the complete list of content for this topic.

Topics: Cath/Angio, Imaging Equipment Parts

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