American Society of Radiologic Technologist (ASRT) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Master the American Society of Radiologic Technologist Exam. Use our flashcards and multiple choice questions, complete with hints and explanations. Get prepared to succeed!

Start Multiple Choice Practice Test
Start Flash Cards

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

The detector that consists of a thin-film transistor array is known as what?

  1. Flat-panel

  2. Photostimulable phosphor plate (PSP)

  3. Charge coupled device (CCD)

  4. Complementary metal-oxide semiconductor (CMOS)

The correct answer is: Flat-panel

The correct answer is the flat-panel detector. Flat-panel detectors primarily utilize a thin-film transistor (TFT) array to convert incoming X-ray photons into electrical signals. This technology allows for efficient image capture in digital radiography. The TFT array consists of thousands of tiny individual sensors arranged in a grid, where each pixel corresponds to a specific part of the image, facilitating high-resolution images and rapid processing. In contrast, the other options represent different technologies used in radiographic imaging. The photostimulable phosphor plate is a component of computed radiography systems, which relies on photostimulable materials to capture and store X-ray images. Charge coupled devices are solid-state devices that are often used in video cameras and some imaging applications but do not specifically employ a TFT array structure. Lastly, complementary metal-oxide semiconductor (CMOS) technology is characterized by low power consumption and high-speed performance, yet it is also distinct from the flat-panel TFT mechanism utilized in digital radiography.

More Questions Like This