Coherent scatter - Study guides, Revision notes & Summaries

ENG1517 JAN/FEB Supplementary exam 2024 Answers SECTION A ALL the answers in this section MUST be presented in the form of (a) cohesive paragraph/s and not in point form. After you have read TEXT A, please answer Questions 1.1 to 1.3. Hairy Maclary from Donaldson’s Dairy is a cumulative tale. The full text of the story has been copied below and an example of one of the pictures has been provided. Most of the paragraphs of text appear alone on a page next to an illustration, as in...

LRA 211 Final Review Study Guide (223/2024) Graded A+ The earliest atomic theory based on an arrangement similar to the solar system is attributed to Rutherford. The three fundamental particles of the atom are the neutron, electron, and proton. The atomic nucleus contains protons and neutrons. The component of the nucleus that has a positive charge and mass is the proton. The electron shell closest to the nucleus is lettered "K". Which of the following is not part of the electromagnetic sp...

Scatter radiation - ANSWER-- form of secondary radiation - result of xray photon deflected in all directions travelling to all parts of client's body and to all areas of the op - detrimental to client and radiographer Compton scatter - ANSWER-- Evidence of ionization - xra photon collides w outer shell + gives up part of its energy to eject electron from it's orbit - ejected electron is known as compton or recoil electron Coherent scatter - ANSWER-- unmodified scatter - when low ene...

1. The two primary forms of x-ray interaction in the diagnostic range are _____. a. Compton scattering and photoelectric absorption b. Compton scattering and pair production c. photoelectric absorption and coherent scattering d. coherent scattering and Thompson scattering ANS: A The two primary forms of x-ray interaction in the diagnostic range are Compton scattering and photoelectric absorption. DIF: Moderate REF: page 148 OBJ: Describe each of the five x-ray interactions with matter. ...

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 and c D. Both a and 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 C. Compton effect The process by which electrons are produced at the cathode of a CT x-ray tube is known as: A...

Chapter 9 Intro to Radiologic & Imaging Sciences & Patient Care _____________ _____________ is energy capable of penetrating matter and possesses sufficient energy to eject orbital electrons along its path - ionizing radiation The two basic sources of ionizing radiation exposure are ______________ radiation and ____________________ radiation sources. - natural and human-made The _____________ must outweigh the risks of any diagnostic study using ionizing radiation. - benefits Human-m...

Fluoroscopy ARRT Exam Study guide Questions With Accurate Answers. What mag modes are available? - answerif you have a 16" II, you can have 12,9,6, and 4.5 " Compton effect - answerhits the outer electron, incomplete transfer of energy, electron released and a low energy xray is deflected photoelectric absorption - answerx-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 ele...

Radiologic Technology ARRT Review Exam Questions And Answers 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 - ANS 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 ...

what mag modes are available? - Answer if you have a 16" II, you can have 12,9,6, and 4.5 " Compton effect - Answer hits the outer electron, incomplete transfer of energy, electron released and a low energy xray is deflected photoelectric absorption - 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 characteristic x-ray is for...

Natural background radiation represents what amount of human radiation exposure? - 50% The greatest source of natural background radiation exposure is? Cosmic rays radioactive materials the body itself radon gas - Radon gas Cosmic natural background radiation is a part of _______________ _____________ exposure. - Natural background Radon gas: a. Presents a danger when undetected b. Is present in doses proportional to other sources c. Is entirely human-made d. Is the s...