What is x ray attenuation - Study guides, Class notes & Summaries

what is contrast media used for? Ans- to distinguish adjacent tissue on an image how can contrast medias be defined? Ans- negative or positive agents what does the classification of contrast medias depend on? Ans- the media's ability to absorb an x-ray beam negative contrast medias are ________________ so x-ray photons are _______________________. Ans- radiolucent easily transmittable how do negative contrast medias appear on a scan? Ans- they appear with an increase in density (dar...

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 receptor attenuation - absorption and scatter of the x-ray beam ...

Which CT system is capable of helical scanning? correct answers volume CT scanners 1. 3rd generation (960) detectors 2. 4th generation 3. EBCT - electronic beam CT Which generation of CT scanner utilized a (360) degree rotation of the x-ray tube around the patient? correct answers 3rd generation scanner Which generation of CT scanner utilizes a fixed ring of detectors? correct answers 4th generation (4800) detectors What are the advantages of CT over conventional imaging? correct ans...

The main advantages of CT over conventional radiography are -Elimination of superimposed structures - the ability to differentiate small differences in density of an atomic structures - superior quality of the images Computer tomography for technologists exam review Romans chapter 1 page 3 CT image quality is evaluated using a number of criteria including - spatial resolution - low contrast resolution - temporal resolution Computer tomography for technologists exam review Romans...

ARRT Radiography QUESTIONS AND ANSWER 2024/2025 100% SOLVED Ionizing Radiation - Answer radiation that is able to remove electrons from an atom through ionization Somatic effects - Answer refers to the effects of radiation to the body being irradiated Genetic Effects - Answer refers to effects of radiation to a germ cell's genetic code; effects the next generation Primary radiation - Answer radiation exiting the x-ray tube Remnant radiation (or Exit Radiation) - Answer x-rays the leave ...

b Combination of photon energy & tissue atomic # results in the highest probability of PE effect a. Low photon energy and low atomic number b. Low photon energy and high atomic number c. High photon energy and low atomic number d. High photon energy and high atomic number d How does the filament transformer of the x-ray machine change the shape of electrical power? a. Step-up voltage and step down-current b. Step-down voltage and step down-current c. Step-up voltage and step-up c...

radiation that is able to remove electrons from an atom through ionization - Ionizing Radiation refers to the effects of radiation to the body being irradiated - Somatic effects refers to effects of radiation to a germ cell's genetic code; effects the next generation - Genetic Effects radiation exiting the x-ray tube - Primary radiation x-rays the leave the patient and strike the image receptor - Remnant radiation (or Exit Radiation) absorption and scatter of the x...

ARRT Radiography Exam (Mosby Review) Questions And Answers Ionizing Radiation - ANS radiation that is able to remove electrons from an atom through ionization Somatic effects - ANS refers to the effects of radiation to the body being irradiated Genetic Effects - ANS refers to effects of radiation to a germ cell's genetic code; effects the next generation Primary radiation - ANS radiation exiting the x-ray tube Remnant radiation (or Exit Radiation) - ANS x-rays t...

LMRT Assessment Tests Q&A A+ Graded . What type of current is required for proper operation of the x-ray tube? - Direct Electromagnetic radiation travels: - In waves along a straight path Frequency is defined as: - The number of waves passing a point per unit time Wavelength is defined as the distance from: - Peak to peak of the wave Wavelength and frequency are: - Inversely proportional to each other The x-ray beam changes as it travels through the patient by a process called: - Attenuat...

. What type of current is required for proper operation of the x-ray tube? CORRECT ANSWER Direct Electromagnetic radiation travels: CORRECT ANSWER In waves along a straight path Frequency is defined as: CORRECT ANSWER The number of waves passing a point per unit time Wavelength is defined as the distance from: CORRECT ANSWER Peak to peak of the wave Wavelength and frequency are: CORRECT ANSWER Inversely proportional to each other The x-ray beam changes as it travels through the pa...