Added: 4 years ago
From: pastaman999
Views: 38,705
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  • pwned by cables huh?...yea maybe next time secure them!

  • Interesting.

  • No one was messing with the cables. They certainly did flap. I was called to work on this scanner (NT with Intera upgrade, Syngo installed). Scans with low intensity gradients weren't too bad. Moderate to high intensity gradients produced progressively worse images. Securing the grad gables fixed the problem. Period.

  • @pastaman999

    What was going bad at the images?

    Artefacts caused by spikes or ghost caused by B0 instability?

  • @Fentesie

    More artifacts by spikes, than ghosting. The spikes were definitely present in high duty cycle scans. In scans of low to medium intensity, there were ghosts from, as you say, B0 instability. These appeared in scans strong enough to move the cables significantly, butu not strong enough to make the cables strike the magnet or the trailer walls.

  • it's them damn ghosts, i tell ya!!

  • something about that is really funny....

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