Elekta Las Vegas Phantom

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1

I am trying to analyse the Las Vegas phantom: field size: 12x12, SSD: 100cm, 10MU

“Unable to find the phantom in the image. Potential solutions: check the SSD was passed correctly, check that the phantom isn’t at the edge of the field, check that the phantom is centered along the CAX.”

222206142244342.dcm (2 MB)

2

Hi,

I think you have to increase the field size. According to the documentation restriction #1 is: The phantom must not be touching any image edges.
https://pylinac.readthedocs.io/en/latest/planar_imaging.html?#las-vegas-phantom

regards
Thomas

3

Yes thank you, the manual indicates 12x12, i had to set 15x15 so the phantom can be seen in the image.