Collimator - Study guides, Class notes & Summaries

Nuclear Medicine Board Review Instrumentation Exam Questions And Answers TCM-99m DISIDA - ANS HEPATOBILIARY TC-99m DMSA - ANS RENAL CORTICAL SCANNING TC-99m DTPA AEROSOL - ANS LUNG TC-99m DTPA IV - ANS BRAIN RENAL (GFR) TCM-99 DTPA (ORAL) - ANS LIQUID GASTRIC EMPTYING TCM-99 ECD - ANS BRAIN SCAN TC-99m HMPAO - ANS BRAIN TC-99m LABELED RBC - ANS GI BLEEDING SCAN TCM-99 MAA - ANS LUNG TC-99m MAG3 - ANS RENAL BLOOD FLOW AND FUNCTION T...

Nuclear Medicine Instrumentation Exam Questions with 100% Correct Answers The amount of light generated by a sodium iodide crystal is directly related to the: A. photon energy absorbed in the crystal B. Diameter of the crystal C. Thickness of the crystal D. Age of the crystal - answerA. photon energy absorbed in the crystal A NaI (Tl) scintillation detector provides an output signal from the photo-multiplier tube that is proportional in amplitude to the amount of energy absorbed in the c...

LRA 222 Final Exam Review Latest Update 100% Pass The anode includes the: target and induction motor the cathode includes the: Filaments and focusing cup the motor that turns the anode operates through what? mutual induction with a rotating anode, the focal spot becomes a: Track the focusing cup is able to keep the electrons together because of what? like charges repel The stator is made up of electromagnets? True prepping the rotor but not making an exposure on a regular basis is related ...

DENTAL RADIOGRAPHY REVIEW EXAM | 254 ACTUAL QUESTIONS AND ANSWERS VERIFIED BY EXPERT 100% CORRECT | UPDATED The most sensitive cells to ionizing radiation are a. bone b. muscle c. nerve d. reproductive - ANSWER d. reproductive The best type of x-ray to penetrate body tissue is a. low frequencies b. high frequencies, short wavelength c. long wavelength d. soft rays, long wavelength - ANSWER b. high frequencies, short wavelength Before seating the dental patient, it is necessar...

RADT 146 Test 3 Exam Questions and Answers What are microfocus (fractional) tubes used for and what size are they - Answer-Magnification or mammography; .3mm or less fss What are the size of dual focus tubes - Answer-.5/1.0mm or .6/1.2mm fss Larger focal spot size ______ detail (300MA or more) Smaller focal spot size ________ detail (200 MA or less) - Answer-Decreases Increases Whats the primary purpose of filtration? - Answer-Reduces patient exposure by absorbing low level x-ray e...

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...

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...

Which of the following changes in (KVP) will result in the greatest reduction of patient dose, when (MAS) is adjusted to compensate for the change? correct answer: Increase kVp by 30% Which of the following (IR) system speeds will result in the lowest patient dose? correct answer: Faster speed IR system What is the primary purpose of using gonad shields during radiography? correct answer: Reduce the likelihood of genetic effects Contact & shadow are two types of gonad shield correct ...

ARRT BOARD EXAM What is the TD 5/5 for the kidney? - ANSWER 23 Gy What would a QA level 1 action item require? - ANSWER Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? - ANSWER Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? - ANSWER Gating What are the...

Basic Gamma Camera Components -ANSWER Collimator, NaI scintillation crystal, light guide, PMT array How does the collimator work? -ANSWER Controls which gamma rays are accepted by absorptive collimation, forming a projected image of the distribution on the surface of the crystal. What information do event signals contain? -ANSWER Position and energy information (could also contain time information). Reflective Material Around Crystal -ANSWER Maximizes light output. Aluminum Casing Ar...