Mrso - Static Field - Module 2 Study Guide Graded A+

Related to the spatial gradient, magnetic shielding can cause {Ans: an increase in dB/dx and unpredictability}When conductive metal is moved through a magnetic field: {Ans: eddy currents are induced in the object}Spatial gradient magnetic fields are expressed in {Ans: T/m or G/cm (1 T/m = 100 G/cm)}Who published guidelines titled "Criteria for Significant Risk" that specifies what qualifies as significant risk of exposure to magnetic field associated with MRI. {Ans: FDA}Shorter bores have higher {Ans: dB/dx at bore entrance}Types of FMD {Ans: -handheld: targeting certain areas -single pillar: standing, 360 degree turn, very sensitive -portal: detects items approaching/entering Zone IV}