Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Chapter 5, Problem 5.24P
To determine
The stopping potential applied to the X-ray tube.
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An argon laser emits a beam of light of wavelength 4.88 × 10-7 m, the power in the beam being 100mW. How many photons per second are emitted by the laser? If the beam falls on the cesium cathode of a photocell, what photoelectric current would be observed, assuming 10% of the photons are able to eject an electron?Given that the limiting frequency v0 of cesium is 5.2 × 1014Hz, what reverse potential difference between the cell electrodes is needed to suppress the photocell current?
Protons are accelerated from rest by a potential difference of 3.80 kVkV and strike a metal target.
A) If a proton produces one photon on impact, what is the minimum wavelength of the resulting xx rays?
Express your answer in meters.
B) Find the minimum wavelength if 3.80 −keV−keV electrons are used instead?
Express your answer in meters.
Calculate the minimum-wavelength x-ray that can be produced when a target is struck by an electron that has been accelerated through a potential difference of 21.0 kV and 1.10 ✕ 102 kV.
(a) 21.0 kV
?min = m
(b) 1.10 ✕ 102 kV
?min = m
(c) What happens to the minimum wavelength as the potential difference increases?
increasesdecreases remains the same
Chapter 5 Solutions
Introduction To Health Physics
Ch. 5 - Prob. 5.1PCh. 5 - Prob. 5.2PCh. 5 - Prob. 5.3PCh. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19PCh. 5 - Prob. 5.20PCh. 5 - Calculate the probability that a 2-MeV photon in a...Ch. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Prob. 5.24PCh. 5 - Prob. 5.25PCh. 5 - Prob. 5.26PCh. 5 - Prob. 5.27PCh. 5 - Prob. 5.28PCh. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - Prob. 5.31PCh. 5 - Prob. 5.32PCh. 5 - Prob. 5.33PCh. 5 - Prob. 5.34PCh. 5 - Prob. 5.35PCh. 5 - Prob. 5.36PCh. 5 - Prob. 5.37PCh. 5 - Prob. 5.38PCh. 5 - Prob. 5.39PCh. 5 - Prob. 5.40PCh. 5 - A 1-M solution of boric acid, H3BO3 , is...Ch. 5 - Prob. 5.42PCh. 5 - Prob. 5.43PCh. 5 - Prob. 5.44PCh. 5 - Prob. 5.45PCh. 5 - Prob. 5.46PCh. 5 - Prob. 5.47PCh. 5 - Prob. 5.49PCh. 5 - Prob. 5.50PCh. 5 - Prob. 5.54PCh. 5 - What is the range in tissue of the beta particles...Ch. 5 - Prob. 5.56P
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