Brightness - Study guides, Class notes & Summaries

RAD 131 EXAM QUESTIONS & ANSWERS 2024/2025 Fluoroscopy was developed so that radiologists could view ___ images - ANSWERSdynamic What is the brightness gain of a fluoroscopic image if an image intensification tube has an input phosphor diameter of 24 cm, and output phosphor diameter of 3 cm, and flux gain of 120 - ANSWERS7680 Variable kVp chart..... If a 6 cm body part is performed at 65kVp @ 6 mAs, what kVp should be used for a 9 cm body part? - ANSWERS71 Fixed kVp chart.... (6cm ...

LRA 221 Week 1 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Q: DICOM is a standard that allows imaging modalities and PACS to communicate in the same language A. True B. False Answer: A. True Q: Which of the following statements is not true? A. Matrix size can change without affecting the FOV B. FOV can change without affecting the matrix C. Changing the matrix or the FOV will change the size of the pixel D. Changing the matrix and the FOV will not chan...

LRA 221 Final Exam Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Review 182 Q: Aliasing occurs when the sampling frequency is not greater than twice the frequency of the input signal. a. True b. False Answer: b. False Q: In digital projection radiography, what process is used to normalize an image that has been taken with too great of an exposure? a. High-pass filtering b. Low-pass filtering c. Automatic rescaling d. Aliasing Answer: c. Automatic res...

LRA 222 Test Questions with Answers Electromagnetic radiation A. has no mass B. has significant mass C. has varying amounts of mass D.none - Answer-A. has no mass Which of the following is not a primary exposure technique factor? a. kvp of exposure c. SID d.Ma - Answer-C. SID Which of the following is true regarding the effect of mAs on the brightness of a digital image? A. doubling the mAs will increase brightness B. halfing the mAs will decrease brightness C. mAs does no...

A diagnostic technique used to image moving structures Correct Answer-Fluoroscopy The computer system used to store and transmit digital x-ray images. Correct Answer-PACS An imaging technique that uses cassettes to produce a digital image. Correct Answer-Computed radiography A dark structure on an ultrasound image is said to be ______________. Correct Answer-Anechoic (ex. bladder full of urine) A structure that has the same brightness as adjacent structures on an ultrasound image is ...

COA (Certified Ophthalmic Assistant) Questions and Answers Already Passed A brightness acuity tester (BAT) determines the effect of A. glare on visual acuity B. illumination on visual acuity C. contrast on visual acuity D. color on visual acuity A. glare on visual acuity A brightness acuity tester would be utilized to determine the effect of glare on visual acuity A common endocrine problem associated with eye disorders is A. diabetes B. high blood pressure C. retinopathy of...

RADT 1075 exam 1 questions & answers 2024/2025 An increased part thickness results in: - ANSWERSincreased beam attenuation ( beam absorption) A body tissue with an increased tissue density results in: - ANSWERSincreased beam attenuation Unwanted exposure to the IR due to scatter radiation is called: - ANSWERSfog Brightness/density is a quality related to the _____________ of the radiographic image. - ANSWERSVisibility of structures Contrast is a quality related to the ______ of ...

ABMDI Board Certification Exam Questions and Answers 100% Pass Barbituates - Correct Answer ️️ -Four main categories: 1. Ultra-short-acting - used to induce surgical anesthesia 2. Short-acting 3. Intermediate-acting - used as sedative-hypnotics 4. Long-acting Butalbital - Correct Answer ️️ -Barbituate. Used in treatment of migraines. Phenobarbital - Correct Answer ️️ -Barbituate. Used as anticonvulsant. Pentobarbital - Correct Answer ️️ -Barbituate. Used to relieve intra...

Name: Date: STUDENT EXPLORATION: BIG BANG THEORY – HUBBLE’S LAW DIRECTIONS: FOLLOW THE INSTRUCTIONS TO GO THROUGH THE SIMULATION. RESPOND TO THE QUESTIONS AND PROMPTS IN THE ORANGE BOXES. Vocabulary: absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, blueshift, Cepheid variable, Doppler shift, Hubble constant, Hubble’s law, luminosity, megaparsec, period, redshift, spectrograph Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Standing by th...

Astro 7N Exam 2; Questions with Complete Solutions 100% Verified A high luminosity star Correct answer-Emits more light than a low-luminosity star If a red giant appears the same brightness as a red main sequence star, which one is farther away? Correct answer-The red giant The heaviest nuclei of all are formed... Correct answer-During a supernova explosion Hydrogen-2 + proton = ____ + energy: Correct answer-Helium-3