The basic component of a fluoroscopic x-ray system suitable for interventional procedures consist of a generator,x-ray tube and housing including collimator and filtration,patient table,anti-scatter grid and an image receptor.Describe the key design features and function of each of these component and briefly discuss the role of automatic brightness control

Match the term with it's definition from the lab Group of answer choices Field of View              [ Choose ]             occular lens x objective lens             the width of the circle of light             the distance from the slide to the bottom of the lens             clarity of an image            Working Distance              [ Choose ]             occular lens x objective lens             the width of the circle of light             the distance from the slide to the bottom of the lens             clarity of an image            Resolution              [ Choose ]             occular lens x objective lens             the width of the circle of light             the distance from the slide to the bottom of the lens             clarity of an image            Total Magnification              [ Choose ]             occular lens x objective lens             the width of the circle of light             the distance from the slide to the bottom of the lens…

Which of the following affect the resolution of a specific objective lens? CHECK ALL CORRECT CHOICES. Magnification Numerical Aperture (NA) Warelengthrofgnt combg tough t Field of View

In light microscopy, when magnification is increased, the lens focuses closer to the sample.  This makes the user more likely to ram the sample into the lens.  Why is it common for the lens to focus closer to the sample at higher magnifications? What can be done to mitigate this risk?

Estimating size in biology. Please help.

Recall that the eye is composed of three layers or "tunics" — the fibrous, vascular, and nervous layers — which enclose two cavities that are separated from each other by the lens. Review the components of these three layers by matching each description with the appropriate letter in the figure below: 1. Fluid in the anterior portion of the eye that provides nutrients to the lens and cornea   2. The "whites" of the eye   3. Area of the retina that lacks photoreceptors   4. Contains smooth muscle that controls the shape of the lens   5. Nutritive (nourishing) layer of the eye   6. Layer containing rods and cones   7. Gel-like substance that helps support the eyeball                    8. Pigmented smooth muscles that control pupil size   9. Most anterior component of the fibrous layer — your "window to the world"   10. Structure that changes shape to bend light toward rods and cones

Please find the answer to all four questions   Single-unit recording has: Good spatial resolution but poor temporal resolution  Poor spatial resolution but good temporal resolution  Good spatial and temporal resolution Poor spatial and temporal resolution  ------------------------------------------- Which of the following statement is false regarding visual agnostics  Patients are not perceptually blind  The ability to discriminate hue, brightness and acuity is intact Patients can recognize object using other sensory modalities such as touch, sound, and smell The impairment is due to general memory loss  ------------------------------------------- In functional neuroimaging, we say a brain area is activated when: That brain regions is more active in the experimental task than in the control task That brain region is more active in the control task that in the experimental task  The BOLD signal in that brain region is correlated with some variable of interest The BOLD signal in that…

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The compound (bright-field) microscope is parfocal. It means that:   Question 4 options:   objective lenses are built into revolving nosepiece   its lenses effectively decrease focal lenght   can achieve maximum resolution lower than 0.2 μm   image should remain in focus when objective lens is changed

Part II Make a list of what image faults one may encounter in radiology and list what the reason for this fault in image quality is. List solutions for each image fault also. An example of the chart structure is listed below. Image Fault Description Reason Solution Dark film Film overexposed mAs too high reduce exposure fogging eliminate light exposure