MRSO PREP Final Test Questions & Correct Revised Answers
MRSO PREP Final Test Questions & Correct Revised Answers Zero Boil-Off - ANSWER : System that reduces/eliminates the need to recharge Helium in a magnet. Quench - ANSWER : Quickly eliminating the magnetic field. Not immediate, takes 3 to 5 minutes to completely eliminate magnetic field. Loud Noise as Helium rushes out of Quench Vent. Can cause crack in the wire (very costly to repair/replace). Ohm's Law - ANSWER : Resistance that is equal to Voltage divided by the amperage in a wire. V=IR Use of Cryogen reduces/eliminates heating with high voltage and amperage which allows for high magnetic field. Cryogen - ANSWER : Liquid Helium 42* Kelvin Dual Cryogen System - ANSWER : Helium Nitrogen (used to keep Helium cold as back-up) Quench Vent - ANSWER : Used to vent boiled off Helium to the outside. Quench Vent in MRI Room is Zone IV (MRI manufacturer/engineer responsible for inspecting) Quench Vent outside is Zone III (Facility responsible for inspecting) Quench concerns with malfunctioning Quench Vent. - ANSWER : Dense fog in room. Can rain or snow which can contain Oxygen which is a fire risk. Hypothermia/Frostbite due to lowered room temperature. Aphyxiation Ruptured Ear Drums because of increased pressure in room. Difficulty opening door to Zone III due to increased pressure. May have to break window to release pressure. Magnet doesn't immediately lose its magnetic field. Peripheral Nerve stimulation due to change in magnetic field.
École, étude et sujet
- Établissement
- MRSO
- Cours
- MRSO
Infos sur le Document
- Publié le
- 28 avril 2024
- Nombre de pages
- 33
- Écrit en
- 2023/2024
- Type
- Examen
- Contient
- Questions et réponses
Sujets
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mrso prep
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mrso prep final test questions correct revised a
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