Focusing of electrons - Study guides, Class notes & Summaries

voltage is stepped up or stepped down by only a small amount and sent to the _______ side of the high voltage step up transformer primary where is the timer in the X-ray circuit? between autotransformer and high voltage transformer mAs timers are used with __________ generators falling load AEC fixed kVp, controlled mAs positioning must be perfect what is the shortest time with AEC? 1 ms falling load generator RT sets mAs and kVp when max heat load of t...

The anode includes the: - Answer-target and induction motor the cathode includes the: - Answer-Filaments and focusing cup the motor that turns the anode operates through what? - Answer-mutual induction with a rotating anode, the focal spot becomes a: - Answer-Track the focusing cup is able to keep the electrons together because of what? - Answer-like charges repel The stator is made up of electromagnets? - Answer-True prepping the rotor but not making an exposure on a regular b...

low voltage x-ray tubes are generally fitted with windows made of: - beryllium a monochromatic x-ray beam is: - a beam consisting of a single wavelength the general method of producing x-rays involves the sudden deceleration of high velocity electrons in a solid body called a: - target if it were necessary to radiograph a 7" thick steel product, which gamma ray source would most likely be used? - co-60 a co-60 gamma source has an approximate practical thickness limit of: - 9" of st...

Week 2 Ionic Compounds IONIC COMPOUNDS In this lesson, you will be exploring ionic bonding. You have encountered many examples of molecules containing Ionic bonds including table salt and sodium fluoride which is found in toothpaste. We will see in this lesson how ionic compounds are formed and how the formation of these compounds leads to the properties we observe. Which of the following would be considered an Ionic Compound? A. CH4 B. LiCl C. N2O4 D. SO In general, an ionic bond for...

LMRT STATE REVIEW QUESTIONS WITH CORRECT DETAILED ANSWERS focusing cup - Answer-small oval depression in the cathode assembly, the negative charge of the focusing cup helps direct electrons toward the anode in a straighter less divergent path. bremsstrahlung - Answer-X-rays that are produced when a projectile electron is slowed by the electric field of a target atom nucleus 15% rule - Answer-used to maintain exposure to the image receptor and maintain radiographic film density. Increas...

motility - correct answer semisolid media shows what? isolating/culturing bacteria - correct answer solid media is best for? synthetic; defined - correct answer What are the terms for a media whose exact chemical compositions are known? differential media - correct answer allows growth of several types of microbes and displays visible differences among those microbes selective media - correct answer suppress unwanted microbes and encourage desired microbes reducing media - correct...

high kVp / kilovoltage - interaction between the x ray photons and matter as illustrated in Figure 4 - 22 is most likely to be associated with picture page 220 The higher the ________the greater the exposure latitude / margin of error in exposure A.kilovoltage range B.mAs range C.grid range - A.kilovoltage range Bushong 9th edition page 256 - 257 Higher _______ produces more energetic photons, is more penetrating, and produces more grays on a radiographic image, l...

Practice test for physics exam 3 Questions & Answers X-rays emitted through the windows of the x-ray tube is known as - Answer-Useful beam X-rays that escape through the protective covering are called - Answer-Leakage radiation Reduces the level of leakage radiation to less that ______ at 1 meter from the tube - Answer-100 mR/hour The x-ray tube inside the protective housing is made of _______ glass - Answer-Pyrex The negative side of the x-ray tube is called ______ - Answer-Cathode The ...

223,224 LRA 222 Finals Review Exam Questions and Answers 2024 The anode includes the - CORRECT ANSWER-target and induction motor The cathode includes the - CORRECT ANSWER-Filaments and focusing cup The motor that turns the anode operates through - CORRECT ANSWER-mutual induction With a rotating anode, the focal spot becomes a focal - CORRECT ANSWER-track The focusing cup is able to keep the electrons together because - CORRECT ANSWER-like charges repel The stator is made up of electr...

LRA 222,223,224 Final Exam Review 2024 Updated The anode includes the: - CORRECT ANSWER-target and induction motor the cathode includes the: - CORRECT ANSWER-Filaments and focusing cup the motor that turns the anode operates through what? - CORRECT ANSWER-mutual induction with a rotating anode, the focal spot becomes a: - CORRECT ANSWER-Track the focusing cup is able to keep the electrons together because of what? - CORRECT ANSWER-like charges repel The stator is made up of electroma...