Mosby Chap 3 Q 74-100

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74. WHICH OF THE FOLLOWING CHARTS MAY BE CONSULTED TO DETERMINE THE SAFETY OF A SINGLE X-RAY EXPOSURE

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TUBE RATING CHART

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75. WHICH OF THE FOLLOWING CHARTS MAY BE CONSULTED TO DETERMINE THE SAFETY OF A SERIES OF X-RAY EXPOSURE

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ANODE COOLING CURVE

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76. THE PORTION OF THE IMAGE-INTENSIFIER TUBE THAT CONVERTS ELECTRON ENERGY TO VISIBLE LIGHT IS THE

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OUTPUT PHOSPHOR

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77. THE PORTION OF THE IMAGE-INTENSIFIER TUBE THAT CONVERTS VISIBLE LIGHT TO AN ELECTRONIC IMAGE IS THE

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PHOTOCATHODE

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78. THE INPUT PHOSPHOR OF THE IMAGE-INTENSIFIER TUBE CONVERTS

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X-RAY ENERGY TO VISIBLE LIGHT

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79. TOTAL BRIGHTNESS GAIN ACHIEVED USING AN IMAGE INTENSIFIER EQUALS

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FLUX GAIN TIMES MINIFICATION GAIN

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80. SINGLE-PHASE, FULL-WAVE RECTIFICATION PRODUCES

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PULSATING DIRECT CURRENT WITH 120 PULSES PER SECOND AND 100% RIPPLE

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81. THREE-PHASE, SIX-PULSE FULL-WAVE RECTIFICATION PRODUCES

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DIRECT CURRENT WITH 13% RIPPLE

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82. THREE-PHASE, TWELVE-PULSE FULL WAVE RECTIFICATION PRODUCES

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DIRECT CURRENT WITH 4% RIPPLE

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83. THE INCREASE IN AVERAGE PHOTON ENERGY WHEN USING THREE-PHASE, SIX-PULSE EQUIPMENT COMPARED WITH SINGLE-PHASE EQUIPMENT IS

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35%

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84. THE INCREASE IN AVERAGE PHOTON ENERGY WHEN USING THREE-PHASE, 12-PULSE EQUIPMENT COMPARED WITH SINGLE-PHASE EQUIPMENT IS

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41%

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85. PROGRAMS THAT DEAL WITH THE SAFE AND RELIABLE OPERATION OF EQUIPMENT AND THOSE THAT ADDRESS ALL ASPECTS OF THE DELIVERY OF RADIOLOGY SERVICES ARE CALLED, RESPECTIVELY

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QUALITY CONTROL AND QUALITY ASSURANCE

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86. EXAMPLES OF DEDICATED X-RAY EQUIPMENT INCLUDE

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MAMMOGRAPHY UNITS, TOMOGRAPHY UNITS, AND MOBILE X-RAY MACHINES

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87. THE COLLIMATOR MUST BE ACCURATE TO A LEVEL OF

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2% OF SID

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88. kVp MUST BE ACCURATE TO WITHING

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4

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89. EXPOSURE LINEARITY MUST BE ACCURATE TO WITHIN

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10%

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90. EXPOSURE REPRODUCIBILITY MUST BE ACCURATE TO WITHIN

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5%

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91. WHEN A SPINNING TOP TEST IS PERFORMED ON SINGLE-PHASE EQUIPMENT, A RADIOGRAPH EXHIBITING FOUR DOTS WOULD INDICATE

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AN ACCURATE TIMER, IF SET ON 1/30 SECOND

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92. WHEN A SPINNING TOP TEST IS PERFORMED ON THREE-PHASE EQUIPMENT, A TIMER SETTING OF 1/60 SECOND SHOULD INDICATE THE FOLLOWING ON THE RESULTANT RADIOGRAPH

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A 6-DEGREE ARC

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93. THE TEST THAT MEASURES THE ACCURACY OF ADJACENT mA STATIONS IS

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EXPOSURE LINEARITY

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94. THE TEST THAT MEASURES THE ACCURACY OF SUCCESSIVE EXPOSURE IS

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EXPOSURE REPRODUCIBILITY

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95. EFFECTIVE FOCAL-SPOT SIZE MAY BE MEASURED USING THE FOLLOWING TOOL(S)

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SLIT CAMERA, STAR TEST PATTERN, AND PINHOLE CAMERA

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96. RESOLUTION OF THE TELEVISION SYSTEM MAY BE MEASURED USING THE FOLLOWING TOOL(S)

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RESOLUTION TEST PATTERN

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97. AUTOMATIC EXPOSURE CONTROLS MAY BE TESTED USING

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PHANTOMS

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98. THE AMOUNT OF mA USED FOR FLUOROSCOPY IS

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3-5

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99. MARKS ON THE FOCAL TRACK OF THE ANODE RESULTING FROM BOMBARDMENT OF ELECTRONS ARE CALLED

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PITTING

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100. EFFECTIVE QUALITY CONTROL AND QUALITY ASSURANCE PROGRAMS ARE REQUIRED FOR ACCREDITATION BY

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THE JOINT COMMISSION