Coherent scatter - Study guides, Revision notes & Summaries

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...

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...

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 Laser Hair Removal Exam (2024) || Questions & Solutions (100% Correct) IBEC Laser Hair Removal Exam (2024) || Questions & Solutions (100% Correct) 1. All of the following are characteristics of LASER light except: a. Monochromatic b. Polychromatic c. Collimated d. Coherent - ANSWER - B. Polychromatic 2. What type of melanin is responsible for brown/black pigment? a. Pheomelanin b. Melomelanin c. Tyromelanin d. Eumelanin - ANSWER - d. Eumelanin 3. Using laser energy to sel...

CAMRT 187 Exam Questions With Verified Answers | Latest Updated 2024/2025 | 100% Correct. 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 dis...

PDD Prep Final Test Questions & Answers 2024/2025 Percent depth dose increases with: A. Increased energy B. Decreased field size C. Increased depth D. All of the above - ANSWERSA. Increased energy TAR is independent of: - ANSWERSSSD The equivalent square formula can be used with: - ANSWERSRectangular-shaped fields The increase in PDD with an increase in SSD can be found by: - ANSWERSMayneord F factor formula The difference between TAR and BSF is: - ANSWERSTAR is define...

What is the lost of some energy from the x-ray beam as it passes through the tissue being imaged? - Beam attenuation The photoelectric affect involves the removal and or ejection of an electron. This process of removing an electron from an atom is? - Ionization When the x-ray photon strikes an atom within the tissue being imaged and looses "all" of it's energy to an "inner" shell electron of an atom the photon is set to have been ________ to undergo ________? - absorb; photoelectric i...

The production of heat at the anode is directly proportional to _______ Correct Answer tube current Approximately _____ of the kinetic energy of the projectile electrons is converted to x-rays at the target Correct Answer 1% The _____ of an x-ray beam is higher when the peak of the emission spectrum is further to the _____. Correct Answer quality, right X-ray quantity increases in direct proportion to increases in _____. Correct Answer mas If a photon interacts with matter and scatte...

Non-Threshold - Any dose produces a response Thermionic Emission - Filament electrons are boiled off producing an electron cloud Bremsstrahlung - AKA Breaking Radiation. Occurs when a high speed electron from the cathode is deflected by the nucleus of a target atom Characteristic Radiation - Occurs when cathode electrons dislodge inner orbit electrons from the target atoms. Anode Heel Affect - Reduction of beam intensity due to interaction with heel of target Quality - Refers to penetrati...

FLUOROSCOPY ARRT EXAM STUDY GUIDE WITH COMPLETE SOLUTIONS. 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 ...