The x ray circuit - Study guides, Class notes & Summaries

___ shell interaction has the highest binding energy and is the most useful for medical imaging - ANSWERk roentgen discovered radiation in - ANSWER1895 ionization - ANSWERthe process of adding or removing electrons from an atom or molecule, which gives the atom or molecule a net charge particulate radiation - ANSWERparticles that have mass and travel in straight lines fast NOT THE SPEED OF LIGHT neutrons protons electrons beta and gamma electromagnetic radiation - ANSWERelect...

Fluoroscopy Exam Test Bank Questions with 100% Correct Answers What activates the production of x-rays during fluoro? - Answer- Dead man switch (foot switch); NOT THE "FOOT PEDAL"! How many light photons are emitted for each absorbed x-ray photon? - Answer- 5000 light photons. What percentage of light from an image intesifier's output screen is transmitted to the cine camera when in use? - Answer- 85 - 95%. Which type of timer accuracy test is performed for three phase x-ray unit...

What must precede any examinations involving iodinated contrast media? CORRECT ANSWER Thyroid assessment Which of the following devices permits the radiographer to vary the kilovoltage in the x-ray circuit? CORRECT ANSWER Autotransformer The legal doctrine stating that an employer is responsible for the employee's negligent actions is: CORRECT ANSWER respondeat superior What is the limit on leakage radiation from a diagnostic x-ray tube? CORRECT ANSWER 1 mGya/hr at a distance of 1 m fr...

How many alterations in the direction of the current flow occur in 0.10 seconds in a 60 Hz AC current Correct Answer 12 (60Hz= 120 pulse/sec; .10 x 120 = 12) The _______ is the source of radiation in the x-ray tube Correct Answer Actual focal spot High frequency generators Correct Answer 1) use inventors to increase pulse frequency 2) produce similar outputs to three-phase with a single phase source 3) achieve peak kvp faster than single or three-phase generators Where is the stator o...

Rectification Constant - A value of the heat unit formula that varies depending on the generator used. Generators used in Radiography - single phase generator delivers pulsating x-ray beam (1), Three phase generator = 3 phase 6 pulse machine (1.35) , High frequency generator = 3 phase 12 pulse machine (1.41) Rectification - The rectifier of the x-ray tube changes alternating current (AC) to direct current (DC). This process ensures that the x-ray production flows in the right direction; fr...

ARRT Registry Exam review Questions And Answers What is the correct term used to describe an intravenous injection of a concentrated volume of contrast media? a. bolus b. infusion c. extravasation d. luminal - ANS a. bolus Which of the following methods utilizes a detector that captures x-ray energy and converts it into an electronic signal? a. indirect capture b. CCD c. cassette based radiography d. direct capture - ANS d. direct capture The energy of a characteristic...

Dental radiology Study Guide Questions with Correct Answers A unit measuring ionization in the air is known as - Answer-Coulomb per kilogram A unit measuring the effect of X rays on the tissues is defined as - Answer-Rem X rays originate when components in the X-ray tube are heated and free electrons are propelled at high speed toward the - Answer-Tungsten target Dense structures such as bone and enamel - Answer-Absorb more X- rays Appears radiopaque Within the X-Ray tube , conv...

___ shell interaction has the highest binding energy and is the most useful for medical imaging - ANSWERk roentgen discovered radiation in - ANSWER1895 ionization - ANSWERthe process of adding or removing electrons from an atom or molecule, which gives the atom or molecule a net charge particulate radiation - ANSWERparticles that have mass and travel in straight lines fast NOT THE SPEED OF LIGHT neutrons protons electrons beta and gamma electromagnetic radiation - ANSWERelect...

RADT 1085 Final Test Questions and Answers All Correct What are functions of the filament? 1) primary thermal conductor 2) target surface for high voltage electrons from the filament 3) conducts high voltage from the cathode back to x-ray circuit generator. - Answer-all of these What are the 3 parts of the anode assembly? - Answer-anode, stator, and rotor Why is a vacuum created in the x-ray tube? - Answer-To remove the air to permit electrons to flow from cathode to anode wit...

olid-state silicon-based diodes? - answerrectifier What regulates the duration of x-ray production? - answerTimer What is located in the x-ray circuit between the high-voltage transformer and the x-ray tube? - answerRectifier Which of the following measures tube current? - answermA meter What device spins at 10,000-12,000 rpm? - answerAnode What device uses maximum heat storage ability of the tube to deliver mAs? - answerFalling load generator What is the source of bremsstrahlung and cha...