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RAD 156 Week 3

Part 3

QuestionAnswer
Conductors are- Materials with low electrical resistance that allow easy flow of electric current
________ are commonly used for wiring and electrical circuits Conductors
Insulators are- Materials with very high resistance that prevent the flow of electric current
_______ are used for insulation and protection Insulators
Semiconductors are- Materials with conductivity between conductors and insulators
________ are essential for electrical components Semiconductors
The electrical properties of semiconductors can be modified by? Doping
Superconductors are- Materials that exhibit zero electrical resistance when cooled below a critical temperature
________ enable efficient energy transfer Superconductors
Conductors Example in Radiological Devices Copper and Aluminium wires in X-Ray Machines
Insulators Role in Radiology Prevent leakage currents that could interfere with device function or pose safety risks
Semiconductors Example in Radiological Devices Silicon-Based components in X-Ray detectors, image sensors, and digital processing circuits
Superconductors Example in Radiological Devices Niobium-Titanium (NbTi) alloys in MRI superconducting magnets, reducing power loss and and enabling strong magnetic fields
Conductors Role in Radiology Ensures efficient electrical power delivery and signal transmission in imaging equipment
Semiconductors Role in Radiology Forms the basis of electrical components like detectors, amplifiers, and processors in imaging systems
Superconductors Role in Radiology Allows generation of powerful magnetic fields in MRI machines with minimal energy loss. Improving image quality
Repel & Attract 1st Principle of Electrostatics
Coulomb’s Law (Inverse Square Law) 2nd Principle of Electrostatics
Movement (Electric charges reside only on the external surface of solid conductors) 3rd Principle of Electrostatics
Concentration (The concentration of charge is greatest where the curvature is greatest) 4th Principle of Electrostatics
Distribution (Only negative charges (electrons) move in solid conductors) 5th Principle of Electrostatics
1st Principle of Electrostatics Application in Radiology Electrons in an X-Ray Tube Repel each other, affecting the electron beams focus
2nd Principle of Electrostatics Application in Radiology The High Voltage (kVp) in an X-Ray tube accelerates electrons due to electrostatic forces
3rd Principle of Electrostatics Application in Radiology X-Ray tube housing is grounded to prevent charge buildup on the exterior
4th Principle of Electrostatics Application in Radiology High Voltage cables and components are designed to minimize sharp edges to prevent electrical discharge
5th Principle of Electrostatics Application in Radiology Electrons travel from the cathode to the anode in an X-Ray Tube, Generating X-Rays at the target
Like charges ________ Repel
Unlike Charge______ Attract
One Coulomb = 6.25 × 10^18 electrons
Created by: user-2016295
 

 



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