Lead collimator - Study guides, Class notes & Summaries

IEM MIDTERM Questions with complete solution 2024 X-RAY TUBE - correct answer -Electronic vacuum tube that contains two electrodes: the cathode and anode (a diode), which are necessary for the production of x-ray beam -the most important part of the x-ray, at the same time it is also the most vulnerable. cathode and anode - correct answer two electrodes Coolidge (Cathode ray) tube - correct answer - the first x-ray tube used 30 to 50 cm long and 20 cm in diameter - correct answer Moder...

DANB RADIOLOGY EXAM QUESTIONS AND ANSWERS ALL CORRECT What is the bremsstrahlung radiation - Answer-aka general radiation; stopping or slowing of the electrons of the cathode stream as they collide with the nuclei of the target atoms What is the collimator made out of? - Answer-Lead What is the earliest sign of radiation exposure? - Answer-erythema What is the emulsion composed of? - Answer-gelatin and silver halide crystals What is the Latent image? - Answer-invisible image (remain...

Nuclides with the same atomic number but different numbers of neutrons are called? -ANSWER Isotopes Two nuclides with the same atomic numbers are called? -ANSWER Isobars Two nuclides with the same number of neutrons but different atomic numbers are called? -ANSWER Isotones What is a radionuclide? -ANSWER A nuclide that emits particular or photon energy to achieve a more stable energy state Another name for a helium ion containing two protons and two neutrons is? -ANSWER an alpha part...

1. Film Errors ANS -overexposure -underexposure -Overlap foreshortened images elongated images cone cut 2. Machine definitions ANS -Collimator-lead plate with a hole in the middle, fitted direct- ly over the opening of the machine housing where the x-ray beam exists. -Tube head-tube housing PID-extension of the x-ray tubehead. used to direct the x-ray beam. -control panel-regulation of the x-ray beam. plugged into electrical outlet. appears as console or cabinet. Extension Arm-suspends ...

LRA 222 Quiz Test Questions and Answers A significant amount of collimation will have what effect on the amount of radiation - Answer-reduced. When imaging the pelvis, changing from 14 × 17 collimation to 8 × 10 collimation requires - Answer-an increase in mAs. A flat piece of lead with a hole in it that has a flange directed toward the patient is a(n) - Answer-cone or cylinder. The most effective and often used radiographic beam-restriction device is the - Answer-collimator. Th...

thyroid collar - correct answer flexible lead shield -protect the thyroid gland from scatter radiation. lead apron - correct answer a flexible lead shield -to protect the patients reproductive and blood forming tissues from scatter radiation inherent filtration - correct answer primary beam passes through glass window, oil bars and tube head - 0.5 to 1.0mm aluminum added filtration - correct answer FILTERS OUT LONG WAVELENGTHS W LOW ENERGY AND SOFT RADIATION aluminum discs in the path of ...

Which of the following will decrease the amount of scatter radiation produced? a. increasing the x-ray field size b. decreasing the x-ray field size c. increasing the grid ratio d. decreasing the grid ratio correct answer: b. decreasing the x-ray field size Which of the following is not a type of beam restrictor? a. aperture diaphragm b. positive beam-limiting device c. cylinder d. lead shield correct answer: d. lead shield As collimation decreases, the quantity of scatter ra...

Dental Assisting Radiology MN Licensure Questions and Answers 100% Pass This is a device used to reduce the amount of scatter radiation that reaches an extraoral film during exposure. grid Identify the error that causes teeth to appear foreshortened on a radiograph. excessive vertical angle Identify the benefit of using a long-cone (16 inch) position-indicating device, versus a short-cone (8inch) position indicating device. less magnification What is the angulation of the ce...

IEM MIDTERM EXAM CORRECTLY ANSWERED 2024. X-RAY TUBE - correct answer -Electronic vacuum tube that contains two electrodes: the cathode and anode (a diode), which are necessary for the production of x-ray beam -the most important part of the x-ray, at the same time it is also the most vulnerable. cathode and anode - correct answer two electrodes Coolidge (Cathode ray) tube - correct answer - the first x-ray tube used 30 to 50 cm long and 20 cm in diameter - correct answer Modern x-r...

IEM MIDTERM EXAM QUESTIONS & ANSWERS 2023/2024 X-RAY TUBE - ANSWER--Electronic vacuum tube that contains two electrodes: the cathode and anode (a diode), which are necessary for the production of x-ray beam -the most important part of the x-ray, at the same time it is also the most vulnerable. cathode and anode - ANSWER-two electrodes Coolidge (Cathode ray) tube - ANSWER-- the first x-ray tube used 30 to 50 cm long and 20 cm in diameter - ANSWER-Modern x-ray tube measures around ...