Photoelectric effect increases the _________ in an x-ray image while Compton scattering increases the _________ . Therefore, _________ is not desirable in diagnostic imaging. Select one: a. image noise; radioactivity; photoelectric effect b. image contrast; image noise; Compton scattering c. radioactivity; image noise; Compton scattering d. image noise; image contrast; photoelectric effect

Photoelectric effect increases the _____ in an x-ray image while Compton scattering increases the _ . Therefore, _____ is not desirable in diagnostic imaging. Select one: a. image noise; radioactivity; photoelectric effect b. image contrast; image noise; Compton scattering c. radioactivity; image noise; Compton scattering d. image noise; image contrast; photoelectric effect

Principles Of Radiographic Imaging: An Art And A Science

6th Edition

ISBN:9781337711067

Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Publisher:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Chapter30: The Art Of Image Critique

Section: Chapter Questions

Problem 7RQ

See similar textbooks

Similar questions

Which of the following is not required for a UV-vis absorption spectrophotometer? Group of answer choices camera detector monochromator light source
The field of view (FOV) is the entire circular image we see when looking into the eyepiece. The diameter of the FOV gets smaller as we increase magnification. It can be measured by using a stage micrometer like a ruler, measuring from edge to edge. Notice that the stage micrometer is 1000 microns (µm) in length, and the field of view under the lowest magnification is 5000 µm. Describe how we measure it?
Objective lens X has a limit of resolution equal to 0.2 mm while objective lens Y has 30 µm. a. Which among the two can magnify a mosquito wing in finer detail? b. Which among the two would show a greater area of the mosquito wing?
Identify all accurate statements: Using a neutral excitation filter can reduce photobleaching. However… A.This can reduce the fluorescence emitted. B.This only delays photobleaching if exposure to light is prolonged. C.This can introduce aberrations in the image. D.This may be toxic to the sample to be observed.
Molecules are tagged by antibodies in __________ microscopy. a. Confocal b. Differential interference contrast c. Fluorescence d. Brightfield
Resolution is ______with a longer wavelength of light. a. improved c. not changed b. worsened d. not possible
You should always position the cells or tissues in the center of view before increasing magnification, because... You know that the image will move right as you move the slide to the left. You know that the image will move up as you move the slide down. You know that the center of the field of view will be unchanged. This is the best way to avoid breaking the slide with an objective
As with standard phase contrast microscopy,differential-interference contrast microscopy depends on differences in the ___________________ of a speciment to create high-contrast images. a. refractive index b. light absorption c. natural fluorescence d. walls and coverings e. natural pigmentation
Which of the following results in green output in spectrophotometry experiment? a. Violet light b. Blue light c. Green light d. Yellow light
Objective lens A has a limit of resolution equal to 0.2 mm while objective lens B has 30 μm. a. Which among the two can magnify a mosquito wing in finer detail? b. Which among the two would show a greater area of the mosquito wing?
Which statement is NOT true about gradient echo sequence: O a. Produces T2 weighted image O b. Uses flip angle smaller than 90 O c. Blood and calcium appear dark O d. has short scan time
a. The scale of a spectrophotometer extends from 1 to 100% T, what are the values of these two extremes in absorbance? b. Convert the 98%T to absorbance