Emission and electron - Study guides, Class notes & Summaries

Lights acts as what? - Answer-Particle and wave. Wavelength - Answer-The distance (m) of waves from peak to peak. Short: x-ray (red), long: infrared (blue) Short - higher energy Long - lower energy Frequency (V) - Answer-The number of wavefronts per second. Highest: x-ray Velocity of Light - Answer-C = 3.00 X 10^8 = wavelength X frequency Amplitude - Answer-The intensity, height of peaks of waves. Highest: blue light Energy of Wave (J) - Answer-Increases as frequency increases and as wa...

Astronomy Midterm 3 Exam - Questions and Answers (Complete Solutions) If you have a 100-watt light bulb, how much energy does it use each minute? A) 6,000 joules B) 6,000 watts C) 600 joules D) 600 watts E) 100 joules If a material is highly opaque, then it A) reflects most light. B) absorbs most light. C) transmits most light. D) scatters most light. E) emits most light. When light reflects off an object, what is the relation between the angle of incidence and the angle of reflection? A) angl...

ALU 101 book questions and answers already passed 2024 Without a properly signed application, a life insurance contract can be considered to be which of the following? A. invalid B. inadmissible as evidence C. Material representation Answer Options: 1. A only is correct 2. A and B are correct 3. B and C are correct 4. A, B and C are correct - correct answer 2 A procedure that uses high frequency sound waves to image soft tissue: 1. X-ray 2. fluoroscopy 3. Ultrasonography (US) 4. ...

Wilhelm Conrad Roentgen - Lived Discovered xrays on November 8, 1895 Discovered xrays at University of Würzburg (Germany) First xray was taken of Rowntgen's wife Anna Bertha's hand American Society of Radiologic Technologists (ASRT) - Founded in Chicago in 1920 Oldest and largest professional radiologic science organization American Registry of Radiologic Technologists (ARRT) - Founded in 1922 Establishes standards and exams necessary to certify radiologic technologists Joint R...

The production of heat at the anode is directly proportional to _______ Correct Answer tube current Approximately _____ of the kinetic energy of the projectile electrons is converted to x-rays at the target Correct Answer 1% The _____ of an x-ray beam is higher when the peak of the emission spectrum is further to the _____. Correct Answer quality, right X-ray quantity increases in direct proportion to increases in _____. Correct Answer mas If a photon interacts with matter and scatte...

COMPLETE TEST BANK RADIOGRAPHIC IMAGE ANALYSIS 5TH EDITION MARTENSEN EXAM (2023/24) WITH COMPLETE QUESTIONS & 100% CORRECT ANSWERS WITH RATIONALES WELL EXPLAINED BY EXPERTS ALREADY PASSED!!!!! GRADED A+ 2024 LATEST UPDATE WITH 100% GUARANTEED SUCCESS AFTER DOWNLOAD (ALL YOU NEED TO PASS YOUR EXAMS) X-rays were at one time called? True X-rays travel at the speed of light in a vacuum. cathode The ____ is the portion of the X-ray tube that contains the filament. Tungsten The cathode fila...

Non-Threshold - Any dose produces a response Thermionic Emission - Filament electrons are boiled off producing an electron cloud Bremsstrahlung - AKA Breaking Radiation. Occurs when a high speed electron from the cathode is deflected by the nucleus of a target atom Characteristic Radiation - Occurs when cathode electrons dislodge inner orbit electrons from the target atoms. Anode Heel Affect - Reduction of beam intensity due to interaction with heel of target Quality - Refers to penetrati...

Nuclides with the same atomic number ( the same number of protons) but a different number of neutrons are called: isotopes Two nuclides with the same atomic mass but different atomic numbers are called: isobars A nuclide that emits particulate or photon energy to achieve a more stable state: radionuclide Another name for a helium ion containing two protons and two neutrons: alpha particle What is a beta particle? an electron Why are alpha and beta particles not used for imaging? T...

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 answers 1,2,3 Which system component converts the projection attenuation data into the proper digital form for the array processor? correct answers 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. digita...

Quantum Physics Terms Already Graded A+ Photon ️A discrete unit or package of light energy Photoelectric Effect ️The emission of electrons from a metal when electromagnetic radiation of high enough frequency falls on the surface Threshold Frequency (f₀) ️The minimum frequency of light needed to eject electrons from a metal surface Work Function (Φ) ️The minimum energy needed to eject electrons from the surface of a metal Millikan's Stopping Potential Experiment ️An ...