Compton effect Samenvattingen, Notities en Examens

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton - Compton scatter What is likely to occur if 250 mGy is ac...

An image that demonstrates low contrast can be caused from: 1. High mAs 2. Low kVp 3. Insufficient beam restriction correct answer: 3 only Which of the following interactions with matter reduce contrast in an x-ray image? correct answer: compton scattering What type of fracture is illustrated below? (femur bone sticking out of skin) correct answer: compound fx From anatomical position, pronating the hand will result in the palm facing ____ correct answer: posteriorly With all oth...

Ionizing Radiation - radiation that is able to remove electrons from an atom through ionization Somatic effects - refers to the effects of radiation to the body being irradiated Genetic Effects - refers to effects of radiation to a germ cell's genetic code; effects the next generation Primary radiation - radiation exiting the x-ray tube Remnant radiation (or Exit Radiation) - x-rays the leave the patient and strike the image receptor attenuation - absorption and scatter of the x-...

ARRT SAFETY EXAM REVIEW QUESTIONS WITH ANSWERS Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - Correct Answers nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - Correct Answers lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton s...

Which of the following reduces the scatter radiation reaching the detectors? A. Post-patient collimation B. Pre-patient collimation C. Pre-detector collimation D. Both A & C - correct answer D. Both A & C Which of the following is the primary interaction between x-ray photons and tissue during computed tomography? A. Bremsstrahlung B. Characteristic C. Compton effect D. Coherent scatter - correct answer C The process by which electrons are produced at the cathode of a CT ...

what mag modes are available? - correct answer if you have a 16" II, you can have 12,9,6, and 4.5 " Compton effect - correct answer hits the outer electron, incomplete transfer of energy, electron released and a low energy xray is deflected photoelectric absorption - correct answer x-ray totally absorbed by inner shell electron, x-ray overcomes binding energy and knock out the electron and an outer shell electron takes it place. When the outer electron moves to its new place, a charac...

LRA 211 Latest Update with Verified Solutions The three fundamental particles of the atom are the proton, neutron, electron The atomic nucleus contains protons and neutrons The component of the nucleus that has a positive charge and mass is the protons The component of the nucleus that has mass but no electrical charge is the Neutron If an atom has more electrons than protons, it will Negative When an atom becomes negatively or positively charged it is usually due to a change in the number ...

Question Number: 399 Detection and Measurement In NTE (nuclear track emulsion) film, the tracks are caused by: A) alpha particles. B) beta particles. C) gamma photons. D) recoil neutrons. E) recoil protons. The correct answer is: E In this fast neutron responsive dosimeter, recoil protons from elastic scattering with hydrogen atoms in the film create short "tracks" of ionization as stable silver atoms are created. These tracks are counted either by eye or mechanically and equated...

X-rays: Typical diagnostic wavelength and photon energy range. - Answer-100ev-200 keV min. wavelength 6pm-12nm Structure and function of the x-ray tube. - Answer-A vacuum tube with an anode and a cathode. The cathode is heated and electrons are emitted, they are accelerated by a voltage difference in the tube. When the "brake" against the material of the anode, they release their high kinetic energy in the form of an x-ray. *x-ray tubes are of very low efficiency, most of the radiation i...

Ionizing Radiation - ANSWER radiation that is able to remove electrons from an atom through ionization Somatic effects - ANSWER refers to the effects of radiation to the body being irradiated Genetic Effects - ANSWER refers to effects of radiation to a germ cell's genetic code; effects the next generation Primary radiation - ANSWER radiation exiting the x-ray tube Remnant radiation (or Exit Radiation) - ANSWER x-rays the leave the patient and strike the image receptor attenuation - ANSW...