Abstract #1831
Investigation of acoustic noise reduction method for MRI-LINAC hybrid system
Yaohui Wang 1 , Feng Liu 1 , Ewald Weber 1 , and Stuart Crozier 1
1
School of Information Technology and
Electrical Engineering, The University of Queensland,
Brisbane, Queensland, Australia
A novel acoustic noise reduction method is proposed for
the hybrid MRI-LINAC (Linear Accelerator) system. This
method is based on the beam-deflection theory. If using
some supports or bolts on the split gradient assembly,
by adjusting the positions of the supports or bolts, the
noise level in the central gap can be significantly
attenuated. Theoretical investigation on a 3-dimensional
(3D) full acoustic model has verified that this method
is available. The overall noise level reduction in the
central gap is 8.5 dB. Future work will be done on the
position optimization of the supports of bolts.
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