The size of the machine tends to scale more-than-linearly with the cross-section of the thing you're scanning. Small animal MRI machines are really tiny: https

The size of the machine tends to scale more-than-linearly with the cross-section of the thing you're scanning. Small animal MRI machines are really tiny: https://rs2d.com/en/mri/irm-1-5t/ https://rs2d.com/en/mri/irm-1-5t/