Low Latency MR Motion Phantom for MR-Linac Beam On/Off Latency Measurement

Provides capability to directly measure MR Linac Beam On/Off system latency without an oscilloscope when tracking a moving target as it moves in and out of a stationary pre-defined target volume.

Input(s):

• Beam On/Off Gating Signal

Main feature(s)

• Track moving dose target as it moves in and out of target volume

Output(s):

• Measure and report beam on and off latency times separately in ms with histograms

Requires beam on/off gating system signal as an input and real time MR motion tracking of a moving target provided by the Modus QA MRI 4D Motion Phantom and associated accessories.

MR Linac Field Service/Installation Engineers and Clinical Physicist performing commissioning, acceptance testing, and AAPM TG recommended regular latency measurement QA.

Commercial distribution.