WEBVTT
Kind: captions
Language: en

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The XRV-100 and XRV-124 represent
an important breakthrough in film-free

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end-to-end testing of proton therapy and
radiosurgery treatment systems.

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Using a novel 3D scintillator cone and CCD
camera, this exciting new technology from

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Logos Systems can quickly capture
radiation beams in real time,

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dramatically improving the speed and accuracy
of your current end-to-end QA test procedure.

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Not only do these XRV systems
measure field size, symmetry, penumbra,

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output, timing and divergence in less
than a second, they can also determine

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within several tenths of a millimeter
the 3D location and direction of the beam.

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In the following animation,
look for the green spots,

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where the x-ray or proton beam enters
and exits the yellow scintillator cone.

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The green spots represent the
visible light captured by the camera

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and used to calculate the beam profile,
position, direction and timing data.

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Note how each different beam shot produces
a unique set of entry and exit locations

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that can be used to reconstruct the beam path.

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The XRV-100 and 124 have embedded BB fiducials

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for alignment of the phantom
within the treatment reference frame.

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Using a CT scan of the XRV phantom,
precise positioning of the

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QA dose ISO Center can be accomplished
using the treatment planning system.

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In the following recording of a real-time treatment,
the x-ray imaging system used for patient

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targeting is illuminating the fiducials
in order to provide guidance for precise

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positioning of the radiation beam within
the volume of the phantom imaging cone.

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The XRV records both the x-ray flashes and
the entry exit spots of the radiation beams.

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Once the QA treatment plan is
captured by the XRV phantom, the

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Logos Systems BeamWorks and Volume Works
software applications can be used to

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analyze the beam by beam targeting
accuracy of the treatment delivery.

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Proton beam positions corrected for
gantry wobble can be quickly verified in

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an all-electronic star shot test.

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For more information on the XRV-100 and XRV-124,

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please call Logos Systems at 831-600-6101

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or visit www.LogosVisionSystem.com.