Collimator - Study guides, Class notes & Summaries

Nuclear Medicine Exam Questions with 100% Correct Answers In imaging with 67Ga-citrate, target-to-background ratio increases over time because of gallium concentration in tissue: remaining the same while blood clearance progresses decreasing while blood clearance progresses remaining the same while blood clearance decreases decreasing while blood clearance decreases - answerremaining the same while blood clearance progresses Following the injection of 67Ga-citrate, imaging can begin: i...

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 CORRECT ANSWER 1,2,3 Which system component converts the projection attenuation data into the proper digital form for the array processor? CORRECT ANSWER analog-to-digital converter Which of the following is NOT a function of a PACS system? a. reconstruction of the image from the raw data b. long term data storage c. digital ...

Chapter 8: Medical Imaging Equipment 1. Which component of the x-ray tube produces the x-rays? A. Cathode B. Anode C. Glass envelope D. Collimator Answer: B Rationale: The anode (B) is the component of the x-ray tube where electrons from the cathode strike, producing x-rays through the process of bremsstrahlung and characteristic interactions. DIF: Knowledge TOP: X-ray Tube Components MSC: Radiographic Equipment 2. The primary function of the cathode in the x-ray tube is to: A. Pro...

Nuclear Medicine Exam Questions with 100% Correct Answers In imaging with 67Ga-citrate, target-to-background ratio increases over time because of gallium concentration in tissue: remaining the same while blood clearance progresses decreasing while blood clearance progresses remaining the same while blood clearance decreases decreasing while blood clearance decreases - answerremaining the same while blood clearance progresses Following the injection of 67Ga-citrate, imaging can begin: i...

Basic Gamma Camera Components - correct answer Collimator, NaI scintillation crystal, light guide, PMT array How does the collimator work? - correct 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? - correct answer Position and energy information (could also contain time information). Reflective Material Around Crystal - correct answer M...

Nuclear Medicine Final Exam Questions with 100% Correct Answers Basic Gamma Camera Components - answerCollimator, NaI scintillation crystal, light guide, PMT array How does the collimator work? - answerControls 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? - answerPosition and energy information (could also contain time information). Reflective Material Arou...

Radiology- NBDE II Questions & Answers A+ Review 1 / 20 1. Barium salts make gutta percha radiopaque. 2. No barrier, protection of dentist should be how far 6 feet , 90-135 degrees 3. most of X ray is converted to Heat 4. What is the oil in the xray tube for 5. Primary source of radiation to operator when taking xray 6. In performing normal dental diagnostic procedures, the operator receives the greatest hazard from which type of radiation? 7. Radiology dosage allowed in a dent...

Nuclear Medicine Exam 100% accuIn imaging with 67Ga-citrate, target-to-background ratio increases over time because of gallium concentration in tissue: remaining the same while blood clearance progresses decreasing while blood clearance progresses remaining the same while blood clearance decreases decreasing while blood clearance decreases -ANSWER remaining the same while blood clearance progresses Following the injection of 67Ga-citrate, imaging can begin: immediately at one hour at t...

Nuclear Medicine Final Exam Questions with 100% Correct Answers Basic Gamma Camera Components - answerCollimator, NaI scintillation crystal, light guide, PMT array How does the collimator work? - answerControls 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? - answerPosition and energy information (could also contain time information). Reflective Material Arou...

RDA Texas State Board Exam Radiosensitive Tissue examples... Bone marrow Reproductive organs Extra oral Film is used to... Evaluate large areas of skull Used to study bone / teeth growth and development Locate suspected fractures of maxilla or mandible Material that the Collimator is made of Lead Correct processing sequence for radiographic film... Develop Rinse Fix Wash Dry Types of extra oral radiographs Tomographs Panoramic Cephalometric OSHA (Occupatio...