X ray interactions Guías de estudio, Notas de estudios & Resúmenes

Elsevier Adaptive Quizzes A radiologic technologist is working on barium and iodine. Which term does the radiologic technologist use to refer to 134/56 Ba and 131/53 I ? a. Isobar b. Isomer c. Isotope d. Isotone - d. Isotone Isotones differ in their atomic numbers and mass numbers, but they have the same number of neutrons, that is, a constant for the quantity a (atomic number) - z (mass number) a-z. Types of ionizing radiation used in various techniques have different ranges of...

Roentgen discovered x-rays while working with a _____ tube? CORRECT ANSWER Crookes An "electron cloud" surrounding the filament of the cathode is referred to as a CORRECT ANSWER Space charge Free electrons of X-ray production come from the CORRECT ANSWER Filament The creation of the space charge in the X-ray tube produces: CORRECT ANSWER thermionic emission The majority of photons in the X-ray beam are created by which process? CORRECT ANSWER Bremsstrahlung interactions More tha...

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 From anatomical position, pronating the hand will result in the palm facing ____. correct answer: Posteriorly The maximum variation between consecutive exposures when using the same technical factor is: correct answer: withi...

Oral stage Anal stage Phallic stage Latency stage Genital stage - ANSWER-What are the five stages of Freud's psychosexual development theory? In what age range is the oral stage of Freud's psychosexual development theory? - ANSWER-Birth- 1 1/2 years In what age range is the anal stage of Freud's psychosexual development theory? - ANSWER-1 1/2- 3 years In what age range is the phallic stage of Freud's psychosexual development theory? - ANSWER-3-6 years In what age range is the...

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...

CT BOOT CAMP CT Image Production (2022/2023) Already Passed If the rotation time of a scan is decreased, what other exposure parameter should be changed to maintain the image quality? A. Increase millimaperage (mA) B. Increased kilovoltage peak (kVp) C. Decrease scan length D. Decrease milliamperage (mA) A. Increase millimaperage (mA) What technical change is expected to increase the penetrating ability of an x-ray beam? A. Increase kilovoltage peak (kVp) B. Increased milliamperage (mA) C. Inc...

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...

___ 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...

Physics correct answer: The science of space, time, matter, energy and their interactions at the most fundamental level. Time correct answer: Dimension that relates to when events occur. Matter correct answer: Anything that occupies space and has mass. Energy correct answer: The ability to do work Medical Radiations/Radiology correct answer: The application of different types of radiation to the diagnosis and treatment of disease. Radiation is the energy that is emitted and tr...

Limited Scope of Radiography Practice Exam - Questions with Verified Answers What statements are correct regarding the link between radiation and genetic effects? The link has been demonstrated in animal studies Increased risk to humans cannot be predicted with respect to an individual. The changes in kilovoltage (kVp) will result in the greatest reduction of patient dose, when milliampere-seconds (mAs) is adjusted to compensate for the change Increase kVp by 30% The following image receptor (...