Compton effect Samenvattingen, Notities en Examens

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes CORRECT ANSWER-nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body CORRECT ANSWER-lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton CORRECT ANSWER-Compton scatter...

Which of the following will decrease the amount of scatter radiation produced? a. increasing the x-ray field size b. decreasing the x-ray field size c. increasing the grid ratio d. decreasing the grid ratio correct answer: b. decreasing the x-ray field size Which of the following is not a type of beam restrictor? a. aperture diaphragm b. positive beam-limiting device c. cylinder d. lead shield correct answer: d. lead shield As collimation decreases, the quantity of scatter ra...

ARRT Radiography Exam (Mosby Review) Questions and Answers 100% Pass Ionizing Radiation radiation that is able to remove electrons from an atom through ionization Somatic effects refers to the effects of radiation to the body being irradiated Genetic Effects refers to effects of radiation to a germ cell's genetic code; effects the next generation Primary radiation radiation exiting the x-ray tube Remnant radiation (or Exit Radiation) x-rays the leave the patient and strike the image recepto...

Which type of x-ray interaction results in the complete absorption of the incident photon by an orbital electron: A. Compton effect B. Photoelectric effect C. Classical scattering D. Pair production - B. Photoelectric effect Which bony landmark is commonly used for central ray location on an AP chest projection: A. Jugular notch B. T7 spinous process C. Vertebrae prominens D. Xiphoid process - A. Jugular notch What is the single, most important step radiographers can take to protect t...

Which of the following contributes significantly to the exposure of the radiographer? A. positrons B. electrons C. compton scatter D. photoelectric effect correct answersC. Small angle scatter will: A. degrade the image by blurring the sharp outline of the structures B. enhance the appearance by clearly delineating the outlines of structures C. enhance the appearance of the image only when a positive contrast medium is used D. occurs only as a result of pair production correct answers...

An image that demonstrates low contrast can be caused from: 1. High mAs 2. Low kVp 3. Insufficient beam restriction correct answer: 3 only Which of the following interactions with matter reduce contrast in an x-ray image? correct answer: compton scattering What type of fracture is illustrated below? (femur bone sticking out of skin) correct answer: compound fx From anatomical position, pronating the hand will result in the palm facing ____ correct answer: posteriorly With all oth...

Attenuation: A. Is radiation that emerges from the patient B. Describes changes in the x-ray beam as it travels through the patient C. Produces only scatter radiation D. Occurs only at doses used in radiation therapy B. Describes changes in the x-ray beam as it travels through the patient Which photon-tissue interaction makes radiography possible because of its creation of contrast? A. Compton B. Coherent C. Photoelectric D. Pair production C. Photoelectric Which photon-t...

RADON 201 Physics Final ExamIn the process of _________, all the energy is transferred to K shell electron from an incoming photon - correct answer Photoelectric ________ is independent of atomic number on a gram to gram basis - correct answer Compton interaction/effect ______ radiation is basically photons that do not change direction in its path, whereas ______ radiation is basically photons that change direction in its path due to interaction with ______ shell electrons - correct answer...

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton - Compton scatter What is likely to occur if 250 mGy is ac...

what mag modes are available? - correct answer if you have a 16" II, you can have 12,9,6, and 4.5 " Compton effect - correct answer hits the outer electron, incomplete transfer of energy, electron released and a low energy xray is deflected photoelectric absorption - correct answer x-ray totally absorbed by inner shell electron, x-ray overcomes binding energy and knock out the electron and an outer shell electron takes it place. When the outer electron moves to its new place, a charac...