Lra 221 week 2 - Study guides, Class notes & Summaries

LRA 221 Week 2 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Q: The optical mirror in the reader A. directs the laser beam to the imaging plate surface B. forms the laser beam into a circle C. causes the laser beam to diverge D. creates the laser beam Answer: A. directs the laser beam to the imaging plate surface Q: Typical cassette throughput is _____ cassettes per _____ A. 5; minute B. 25; minute C. 25; hour D. 50; hour Answer: D. 50; hour ...

LRA 222 Week 2 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: Each light photon is assigned a number during A. amplification B. sampling C. digitization D. laser scanning Answer: C. digitization Q: The wavelength of the PSP reader laser is ______ nm A. 336 B. 636 C. 633 D. 366 Answer: C. 633 Q: The laser scans the imaging plate in a ______ pattern A. raster B. horizontal C. circular D. random Answer: A. raster ...

LRA 221 Week 2 Quiz | Latest Update | 2024/2025 | Already Passed 10. Coherent light is formed by the laser because the photons A. are at right angles to each other B. travel in all directions C. travel in the same direction D. are at varying frequencies C. travel in the same direction 11. The optical mirror in the reader A. directs the laser beam to the imaging plate surface B. forms the laser beam into a circle C. causes the laser beam to diverge D. creates the laser beam A...

LRA 221 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Q: Which of the following statements about scintillators is true? a. all scintillators absorb the same amount of x-ray photons b. the amount of x-rays absorbed depends on the type of scintillator c. structured phosphors produce more light spread d. unstructured phosphors are more efficient Answer: the amount of x-rays absorbed depends on the type of scintillator Q: The readout process requires that ...

LRA 222 Week 3 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: To overcome the decrease in sharpness caused by the air gap technique, an increase in SID is required A. True B. False Answer: A. True Q: Grid cutoff results in A. may increased patient exposure B. all of these C. reduced exposure to the IR D. possible increased in quantum noise Answer: B. all of these Q: The unrestricted primary x-ray beam is A. round B. rectangul...

LRA 222 Week 1 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: Similar to CR, DR can use the existing diagnostic equipment found in today's imaging departments A. True B. False Answer: B. False Q: Indirect capture DR converts absorbed x-ray energy into visible light A. True B. False Answer: A. True Q: DICOM is a standard that allows imaging modalities and PACS to communicate in the same language A. True B. False Answer: A. ...

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 222 Final Exam| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: A diode allows electrons to flow from _____. Answer: cathode to anode Q: True or False? The mAs timer is usually set to give the lowest mA at the longest time? Answer: False Q: What is amplitude? Answer: Height of a wave Q: Variations in power distribution to the xray machine are corrected by the _____. Answer: Line voltage Q: What is the most ...

LRA 220 Final Exam V3| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A Q: Which special position of the knee requires that the patient be placed supine with 40° flexion of the knee and the CR angled 30° from the long axis of the femur? Answer: Bilateral merchant method Q: A radiograph of an AP ankle projection reveals that the lateral joint space is not open (lateral malleolus is partially superimposed by the talus). The superior and medial joint space...

LRA 220 Final Exam V1| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A Q: This radiograph represents which of the following positions? Answer: Medial lateral of the knee toward the IR Q: To decrease the angle between the anterior surface of the foot and anterior surface of the lower leg is described as: Answer: Dorsiflexion Q: How much central ray (CR) angulation (if any) should be used for an AP projection of the toes? Answer: ...