Scenario 3: X ray imaging department • • • All diagnostic examinations involving medical exposures are performed with the radiation dose to the patient being as low as reasonably practicable to achieve the required quality of image. • All operating personnel must withdraw from the treatment area when the X-ray tube is in operation. • Personal dosimeters (film badge) should be worn on the front of the body, in the area of the main torso, anywhere from waist to neck. Individuals who wear lead garments should position the whole body dosimeter at collar level, outside of any lead protection. • When not wearing the dosimeter, it should be stored in an area away from any radiation sources. • Do not lend your dosimeter to another person, and do not wear another person’s dosimeter. • Personal dosimeters must be submitted for analysis every 3 months. • If your dosimeter is damaged or lost, promptly contact the badge coordinator or the Radiation Safety Office. • Personnel must inform the Radiation Safety Office if they become pregnant or are intending to become pregnant.

Scenario 3: X ray imaging department • • • All diagnostic examinations involving medical exposures are performed with the radiation dose to the patient being as low as reasonably practicable to achieve the required quality of image. • All operating personnel must withdraw from the treatment area when the X-ray tube is in operation. • Personal dosimeters (film badge) should be worn on the front of the body, in the area of the main torso, anywhere from waist to neck. Individuals who wear lead garments should position the whole body dosimeter at collar level, outside of any lead protection. • When not wearing the dosimeter, it should be stored in an area away from any radiation sources. • Do not lend your dosimeter to another person, and do not wear another person’s dosimeter. • Personal dosimeters must be submitted for analysis every 3 months. • If your dosimeter is damaged or lost, promptly contact the badge coordinator or the Radiation Safety Office. • Personnel must inform the Radiation Safety Office if they become pregnant or are intending to become pregnant.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter29: Introduction To Quantum Physics

Section: Chapter Questions

Problem 16CQ: One could feel heat transfer in the form of infrared radiation from a large nuclear bomb detonated...

See similar textbooks

Similar questions

Johnny calculates from an experiment that he has 22 grams of carbon. However, he should have gotten 25 grams of carbon, which was the accepted value for this experiment. What was his percent error? •Remember: % Error =(EV-AV) x 100
Part A Some atomic masses Particle Symbol Mass (u) Electron e 0.00055 Part B Proton 1.00728 Neutron n 1.00866 Part C Hydrogen 1.00783 Helium 4 Не 4.00260 Part D Part E Calculate the binding energy EB of the helium nucleus He. Express your answer in megaelectron volts to three significant figures. • View Available Hint(s) EB = MeV
Photon Energies and the Electromagnetic Spectrum• Explain the relationship between the energy of a photon in joules or electron volts and its wavelength or frequency.• Calculate the number of photons per second emitted by a monochromatic source of specific wavelength and power.
76 ACTIVITY 34 • Timing from the Big Bang to Today Now we are at the time when the temperature is 10" K and the density is 10 times that of water. We watch the universe shrink exponentially (reversing its 10" growth originally), sometime between 10 and 10-33 seconds after the Big Bang. It is now the Planck era, 10 seconds after the Big Bang, and the temperature is 10" K and the density is 10% times that of water. The four fundamental forces are combined under the thcory of everything (TOE). We have arrived at a time when the conditions of the universe are unknown; our theories are unable to describe it. 1. At the stage where Big Bang nucleosynthesis was occurring, the temperature and density of the universe were about K and kg/m
3. • A laser used to weld detached retinas emits light with a BIO wavelength of 652 nm in pulses that are 20.0 ms in duration. The average power expended during each pulse is 0.600 W. (a) How much energy is in each pulse, in joules? In electron volts? (b) What is the energy of one photon in joules? In elec- tron volts? (c) How many photons are in each pulse?
Problems • A beam of light with intensity of 3mW and a wavelength of 742 nm is striking a solar cell. Estimate the number of photons incident on the cell. • If the dark saturation current of a solar cell is 1.7X10-8 A/m², the cell temperature is 27 °C, and the short-circuit current density is 250 A/m?, Vmax = 0.526 V. Calculate the open-circuit voltage, Voci current power, maximumlmax; power,maximunfatdensity radiationsolar availablethe Whennmax.efficiency,maximum W/m? and 820 is
Please explain the photo attached in detail. Per bullet explanation please.
Problems • A beam of light with intensity of 3mW and a wavelength of 742 nm is striking a solar cell. Estimate the number of photons incident on the cell. • If the dark saturation current of a solar cell is 1.7X10-8 A/m2, the cell temperature is 27 °C, and the short-circuit current density is 250 A/m2, Vmax = 0.526 V. Calculate the open-circuit voltage, Voci current density at maximum power, Imax; maximum power, Pmaxi and maximum efficiency, nmax: When the available solar radiation is 820 W/m2
• What length of a 7.7-mW laser’s beam will contain 9.5 mJ ofenergy?
•36 If d = 31- 2j + 4k and dz = -5i + 2j-k, then what is %3D ¿lpr x 'p)-(p + 'p)
One could feel heat transfer in the form of infrared radiation from a large nuclear bomb detonated in the atmosphere 75 km from you. However, none of the profusely emitted x rays or rays reaches you. Explain.
7. A PET scanner is built with 360 detectors around a ring, spaced 1° apart. They are numbered 1 on the horizontal axis at 0° all the way around counter-clockwise to 359°, Two coincidental signals are received, one pair on detectors 25° and 170°, and the next on detectors 60° and 300°, Draw a circle and locate the radioactive source.