Lra 221 week 1 - Study guides, Class notes & Summaries

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...

1. Film and intensifying screens are primarily used in A. computed radiography (CR) B. digital radiography (DR) C. conventional radiography D. picture archival and communication systems - correct answer C. conventional radiography 2. CR acquires an image through A. conventional film/screen processing using a digital scanner B. the heating of a thermoluminescent device C. an electrically charged cassette D. the use of a storage phosphor plate - correct answer D. the use of a storage ph...

LRA 221 Week 1 Quiz | Latest Version | 2024/2025 | Already Passed 5. In reference to PSP image capture, to release the latent image, which of the following devices is scanned over the phosphor plate? A. Photomultiplier tube B. Fluorescent light C. Focused laser light D. Lithium crystal C. Focused laser light 6. X-ray energy related to direct capture DR will stimulate a ______, which eventually is changed into an electrical signal A. photodensitometer B. scintillator C. TFT arra...

10. All of the following are components of a PACS except A. independent kilovoltage peak and milliampere-second stations B. web access C. multiple interfaces D. reading stations - Answer A. independent kilovoltage peak and milliampere-second stations 11. Similar to CR, DR can use the existing diagnostic equipment found in today's imaging departments A. True B. False - Answer B. False

Which radiographic image capture method uses chemical development to produce the manifest image? - correct answer Film/screen radiography Which company was the first to introduce PSP imaging commercially in the United States? - correct answer Fuji Which radiographic image capture method uses an X-ray absorber material coupled with a thin film transistor, complementary metal oxide semiconductor, or a charge-coupled device (CCD) to form the digital radiographic image? - correct answer FPD (f...

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 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 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 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 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 ...