Difference between revisions of "Hardware:Gradient coil"
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(Created page with "The gradient coils generate the linear gradient fields that are used for imaging. They produce a magnetic field in the z direction which changes linearly with position with a sl...") |
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The gradient coils generate the linear gradient fields that are used for imaging. They produce a magnetic field in the z direction which changes linearly with position with a slope of14G/cm when driven with 1 amp of current. With 2 A, the slope is 28G/cm so we refer to the sensitivity of the gradients as 14G/(cm A). The gradient coils for this system are contained on a printed circuit board that is inserted into the magnet bore leaving a space just over 1cm for the sample and RF detector/exciter coil. | The gradient coils generate the linear gradient fields that are used for imaging. They produce a magnetic field in the z direction which changes linearly with position with a slope of14G/cm when driven with 1 amp of current. With 2 A, the slope is 28G/cm so we refer to the sensitivity of the gradients as 14G/(cm A). The gradient coils for this system are contained on a printed circuit board that is inserted into the magnet bore leaving a space just over 1cm for the sample and RF detector/exciter coil. | ||
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| + | [[File:gradientcoil.png|600px|thumb|right|RF coil in copper shielded box]] | ||
Revision as of 18:36, 13 August 2013
The gradient coils generate the linear gradient fields that are used for imaging. They produce a magnetic field in the z direction which changes linearly with position with a slope of14G/cm when driven with 1 amp of current. With 2 A, the slope is 28G/cm so we refer to the sensitivity of the gradients as 14G/(cm A). The gradient coils for this system are contained on a printed circuit board that is inserted into the magnet bore leaving a space just over 1cm for the sample and RF detector/exciter coil.
