Coherent scatter - Study guides, Class notes & Summaries

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...

_____ 1. X-ray photon passed through atom unchanged; no interaction _____ 2. Coherent scatter _____ 3. Photoelectric effect _____ 4. Compton scatter _____ 5. Bremsstrahlung radiation _____ 6. Radioactivity A. Electrons stop suddenly as they hit the anode. B. Ionization takes place when the photon ejects an outer shell electron. This results in the loss of energy for the photon and a negative charged electron. The low energy photon changes direction. C. An unstable atom releases energy...

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 - answer-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 image contrast? a. Compton b. Coherent c. Photoelectric d. Pair production - answer-Photoelectric ...

ARRT SAFETY EXAM REVIEW QUESTIONS WITH ANSWERS Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - Correct Answers nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - Correct Answers 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 s...

___ shell interaction has the highest binding energy and is the most useful for medical imaging - ANSWERk roentgen discovered radiation in - ANSWER1895 ionization - ANSWERthe process of adding or removing electrons from an atom or molecule, which gives the atom or molecule a net charge particulate radiation - ANSWERparticles that have mass and travel in straight lines fast NOT THE SPEED OF LIGHT neutrons protons electrons beta and gamma electromagnetic radiation - ANSWERelect...

CAMRT Final Exam Questions With Verified Answers Latest Updated 2024/2025 (100% Correct) Air gap technique - Answer :reduces scatter, increases contrast IP 10-15 cm away from pt mAs increase 10% for every cm gap Not effective with high kV Quiz :why expiration with pneumo - Answer :reduces lung vol, pneumo occupies larger area- easier to see Quiz :Spondylolisthesis - Answer :forward displacement of a vertebra commonly occurs after # (pars) Quiz :Spondylolysis - Answer :occurs when there i...

Which of the following reduces the scatter radiation reaching the detectors? A. Post-patient collimation B. Pre-patient collimation C. Pre-detector collimation D. Both A & C - correct answer D. Both A & C Which of the following is the primary interaction between x-ray photons and tissue during computed tomography? A. Bremsstrahlung B. Characteristic C. Compton effect D. Coherent scatter - correct answer C The process by which electrons are produced at the cathode of a CT ...

IBEC TEST QUESTIONS WITH 100% CORRECT ANSWERS LATEST UPDATE | DETAILED ANSWERS. Average time of hair, reappearance after tweezing or waxing: Deep, coarse, bulbous terminal hair (as on chins) - ANSWER- 5 to 6 weeks Average time of hair, reappearance after tweezing or waxing: Medium depth, terminal hair (as on side of face and body) - ANSWER- 6 to 7 weeks Average time of hair, reappearance after tweezing or waxing: Medium depth intermediate or accelerated vellus hair - ANSWER- 7 to 9 weeks ...

CAMRT Final Exam Prep Questions With Verified Answers Updated 2024/2025 (100% Verified) Why include ant ST on lat Cspine - Answer :Pre verterbal fat stripewidening=#, mass, inflammation Quiz :Air gap technique - Answer :reduces scatter, increases contrast IP 10-15 cm away from pt mAs increase 10% for every cm gap Not effective with high kV Quiz :why expiration with pneumo - Answer :reduces lung vol, pneumo occupies larger area- easier to see Quiz :Spondylolisthesis - Answer :forward displ...

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...