Cathode ray tube - Study guides, Class notes & Summaries

1418 RTE Pre/Posttest (2023/2024) Already Passed The target material of the anode is made of: Tungsten ____________ radiography systems have detectors that capture and readout an electronic image signal. Direct Filtration removes the ________ energy photons from primary beam. Low Scatter is produced primarily in the _________. a) x-ray tube b) Image receptor c) patient d) target An increase in milliampere seconds (mAs) in digital imaging, increases the signal to noise ratio and ______ the pa...

Chapter 03: Radiation Characteristics Iannucci: Dental Radiography, 5th Edition MULTIPLE CHOICE 1. In dental radiography, the term ________ is used to describe the mean energy or penetrating ability of the x-ray beam. a. quality b. quantity c. intensity d. wavelength ANS: A Quality is used to describe the mean energy or penetrating ability of the x-ray beam. Quantity refers to the number of x-rays produced. Intensity is defined as the product of the quantity and quality per...

CT Registry Review (MIC) Questions and Answers Rated 100% In order for an x-ray photon to be measured it must: 1. enter the detector chamber 2. be absorbed by the detector material 3. be converted to a measurable event *ANS* 1,2,3 Which system component converts the projection attenuation data into the proper digital form for the array processor? *ANS* analog-to-digital converter Which of the following is NOT a function of a PACS system? a. reconstruction of the image from the raw d...

HESI EXIT EXAM STUDY VERIFIED QUESTIONS AND ANSWERS 2023 LATEST UPDATE GRADED A A radiographer prepares to perform an AP projection of the distal femur on a patient with a suspected femoral fracture. Which represents the best approach for positioning both the patient and the x-ray tube? A. Rotate the leg 15 degrees medially; place the cathode end of the tube toward the foot. B. Rotate the leg 15 degrees medially; place the anode end of the tube toward the foot. C. Do not rotate the l...

LRA 110 Final Exam Questions and Answers Rated A+ x rays were discovered ? November 8, 1895 by Wilhelm Conrad Roentgen the first radiograph produced by Dr. Roentgen was of His wife's hand radiation burn resulting from excessive exposure to xrays common among early patients and operators of xray equipment a delayed reaction to excesssive xray exposure acute radiodermatitis Watt is the unit of measure of power energy in a stored state is potential energy energy being expended? potential ene...

Dental Radiography Exam Review (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What are the three components to an X-ray machine? Answer: Tube-head, extension arm, and control panel Q: What is the purpose of the cathode? Answer: Supply electrons necessary to generate x-rays Q: What is the anode? Answer: Positive electrode, acts as the target for the electrons Q: The X-rays at the center of the beam are known, collectiv...

RCIS Practice Exam Questions and Verified Answers| 100% Correct| Grade A (Latest 2024/ 2025 Update) Q: Signs of Right sided heart failure include Answer: JVD Q: Based on these oxygen saturations, what type of shunt is present? SVC sat= 67% IVC sat= 71% RA sat= 85% RV sat= 85% PA sat= 85% LA sat= 98% LV sat= 98% AO sat= 98% Answer: L to R ASD Q: What type of ASD, located in the middle 1/3 of the atrial septum (the former site of the fossa ovalis) is called Answer...

Test Bank for Dental Radiography Principles and Techniques, 5th Edition, Joen Iannucci, Laura Howerton Table of Contents PART I. Radiation Basics 1. Radiation History 2. Radiation Physics 3. Radiation Characteristics 4. Radiation Biology 5. Radiation Protection PART II. Equipment, Film, and Processing Basics 6. Dental X-Ray Equipment 7. Dental X-Ray Film 8. Dental X-Ray Image Characteristics 9. Dental X-Ray Film Processing 10. Quality Assurance in the Dental Office PART III. Den...

Chapter 9 Intro to Radiologic & Imaging Sciences & Patient Care _____________ _____________ is energy capable of penetrating matter and possesses sufficient energy to eject orbital electrons along its path - ionizing radiation The two basic sources of ionizing radiation exposure are ______________ radiation and ____________________ radiation sources. - natural and human-made The _____________ must outweigh the risks of any diagnostic study using ionizing radiation. - benefits Human-m...

Motion blurMotion blur - 1. Movement of the patient or the x-ray tube during exposure results in blurring of the radiographic image. This loss of radiographic quality, called motion blur, may result in repeated radiographs and therefore should be avoided. 2. Patient motion is usually caused by motion blur. Suspend respiration for exposures, decrease exposure time, use a large SID and use a small OID. Transverse - across the table, at right angles to longitudinal. Longitudinal - along th...