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Stack #2672029

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
The purpose of the barcode label is to match the image information with the:   show
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Computers operate using a ______ language   show
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show Light  
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show The light from the phosphor following laser excitation of the reader assembly  
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show All pixel values  
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The digital detector used in CR Imaging is the   show
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Grossly overexposed digital images will demonstrate   show
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The phosphor layer is made of the phosphors from the _____ family   show
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The layer of the imaging plate that traps electrons during exposure is the _____ layer   show
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The active element in a storage phosphor is   show
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CR acquires an image through:   show
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show True  
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The number of trapped electrons is proportional to the   show
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show Insufficient light  
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Exposure latitude is to conventional radiography as ____ is to DR   show
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show Exposure to the IP of 1mR  
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Resolution is controlled by ____ size   show
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show No change  
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show 8hours with 25% of image lost  
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show True  
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Histograms are graphs of the number of pixels in the entire image or part of the image having the same gray levels   show
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The LUT is used to distinguish all the different contrasts of an image   show
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1MR=2000 Ideal EI # is 1700-2300 Increase by 300, double exposure   show
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1MR= 200 Ideal is100-400 Double #, double exposure   show
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The emission of a bluish purple light is when   show
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show Latent  
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show High resolution IPS  
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Have a thick phosphor layer, absorbs more radiation, have faster speeds High speeds= low resolution   show
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show Phosphor layer  
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Halide can be   show
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Image plate phosphor layer contains Europium within matrix but is not active   show
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Luminescence   show
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show Immediate emission of light  
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Phosphorescence   show
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show Photostimulated luminescence  
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show Image acquisition Image plate scanning and then erasure Image processing Image display  
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show Exposure  
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Kilovoltage peak should be chosen:   show
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show Laser scanning a PSP plate  
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show Latent image  
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Computed radiography is also referred to as   show
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DICOM is a standard that allows imaging modalities and PACS to communicate the same language   show
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For digital imaging systems, the spatial resolution depends on the size of the ____________________ in the matrix.   show
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show optical system  
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____ produce(s) lateral spreading of light, which destroys the spatial resolution of the image.   show
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show spatial resolution  
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an eight bit word is called a   show
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show binary machine language  
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which layer used in the indirect flat panel digital detector is usually either cesium iodide or gadolinium oxysulfide?   show
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show the use of a reusable receptor  
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show pixel size  
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______ is a photoconductor that conducts electrons when struck by light or X-ray photons   show
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when matrix size is increased and pixel size goes down,   show
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show modulation transfer function  
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show brightness  
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the exposure indicator number is an   show
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show bit  
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the best signal to noise ratio is   show
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show photoconductor  
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computerized digital images consist of a _____ of picture elements, each with a video display value or gray shade   show
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show a graphic representation of X-ray exposure  
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show sensing area  
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a common feature between indirect and direct DR technology is   show
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show both over and under exposure  
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show apple a predetermined scale of contrast to digital data sets  
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_______ deals with the efficiency of a detector to convert the radiation signal at its entrance window into useful image signal   show
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with indirect flat panel TFT digital detectors, what is used to first convert X-ray photons into light photons?   show
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the window width controls   show
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an MTF of ___ represents a perfect transfer of spatial and contrast information   show
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grossly overexposed digital images will demonstrate   show
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if the digital FOV is 1024 and the display matrix is 256 the pixel size would be   show
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show data acquisition  
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what does X-ray exposure of the PSP IP create   show
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the layers of a flat panel indirect capture detector include   show
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show DQE  
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the window width   show
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which image quality descriptor of a digital image is related to the size of the pixels in the image matrix   show
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given the negative feedback due to underexposures, what does a predictable and unfortunate use of higher exposures result in   show
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show bit depth  
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show true  
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computerized digital images consists of a ____ of picture elements, each with a video display value or gray shade   show
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show digital radiography  
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show false  
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show true  
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saturation and ALARA violations are the primary reasons to use appropriate exposure level   show
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show true  
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show selenium  
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Larger matrix= smaller pixels=improved sharpness   show
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show true  
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When the quality of a digital detector is inspected for purchase, the preferred detector for purchase would have   show
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increasing the KVP increases the number of X-ray that X-ray tube emits   show
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show false  
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show fill factor  
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show true  
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a compton scatter interaction takes place between an X-ray and an outer shell electron   show
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show false  
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show true  
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CR systems acquire clinical info by   show
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show true  
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Created by: sabv