Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 47, Problem 6PLA
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Physics Laboratory Manual
Ch. 47 - Prob. 1PLACh. 47 - Prob. 2PLACh. 47 - Which kind of natural radioactivity produces...Ch. 47 - Which type of natural radioactivity produces...Ch. 47 - State the form of the equation for the absorption...Ch. 47 - Prob. 6PLACh. 47 - Prob. 7PLACh. 47 - In the experimental arrangement of Question 7, if...
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- A radiationenhanced nuclear weapon (or neutron bomb) can have a smaller total yield and still produce more prompt radiation than a conventional nuclear bomb. This allows the use of neutron bombs to kill nearby advancing enemy forces with radiation without blowing up your own forces with the blast. For a 0.500kT radiationenhanced weapon and a 1.00kT conventional nuclear bomb: (a) Compare the blast yields. (b) Compare the prompt radiation yields.arrow_forwardArrange the following according to their ability to act as radiation shields, with the best first and worst last. Explain your ordering in terms of how radiation loses its energy in matter. (a) A solid material with low density composed of low-mass atoms. (b) A gas composed of highmass alums. (c) A gas composed of lowmass atoms. (d) A solid with high density composed of highmass atoms.arrow_forwardWhich methods of radiation protection were used in the device shown in the first photo in Figure 32.35? Which were used in the situation shown in the second photo? (a) (b) Figure 32.35 (a) This xray fluorescence machine is one of the thousands used in shoe stores to produce images offset as a check on the fit of shoes. They are unshielded and remain on as long as the test are in them, producing doses much greater titan medical images. Children were fascinated with them. These machines were used in shoe stores until laws preventing such unwarranted radiation exposure were enacted in the 1950s (credit: Andrew Kuchling ) (b) New that we know the effects of exposure to radioactive material, eatery is a priority. (credit: U.S. Navy)arrow_forward
- One half the rays from 99mTc are absorbed by a 0.170mmthick lead shielding. Half of the rays that pass through the first layer of lead are absorbed in a second layer of equal thickness. What thickness of lead will absorb all but one in 1000 of these rays?arrow_forwardConsider Figure 10.12. If the magnetic field is replaced by ail electric field pointed in toward the page, in which directions will the a,+,and rays bend? Figure 10.12 The effect of a magnetic field on alpha ( a ), beta ( ), and gamma ( ) radiation. This figure is a schematic only. The relative paths of the particles depend on then masses and initial kinetic energies.arrow_forwardWhen a nucleus (decays, does the (particle move continuously from inside the nucleus to outside? That is, does it travel each point along an imaginary line from inside to out? Explain.arrow_forward
- Ionizing radiation interacts with matter by scattering from electrons and nuclei in the substance. Based on the law of conservation of momentum and energy, explain why electrons tend to absorb more energy than nuclei in these interactions.arrow_forwardOne of the methods used to limit radiation dose to the patient in medical imaging is to employ isotopes with short halflives. How would this limit the dose?arrow_forwardUnreasonable Results A physicist scatters (rays from a substance and sees evidence of a nucleus 7.51013m in radius. (a) Find the atomic mass of such a nucleus. (b) What is unreasonable about this result? (c) What is unreasonable about the assumption?arrow_forward
- The detail observable using a probe is limited by its wavelength. Calculate the energy of a (ray photon that has a wavelength of 11016m, small enough to detect details about one—tenth the size of a nucleon. Note that a photon having this energy is difficult to produce and interacts poorly with the nucleus, limiting the practicability of this probe.arrow_forwardGive at least one argument in support of the particle-nature of radiation.arrow_forwardThe Galileo space probe was launched on its long journey past Venus and Earth in 1989, with an ultimate goal of Jupiter. Its power source is 11.0 kg of 238Pu, a by-product of nuclear weapons plutonium production. Electrical energy is generated thermoelectrically from the heat produced when the 5.59-MeV a panicles emitted in each decay crash to a halt inside the plutonium and its shielding. The half-life of 238Pu is 87.7 years. What was the original activity of the 238Pu in becquerels? What power was emitted in kilowatts? What power was emitted 12.0 y after launch? You may neglect any extra energy from daughter nuclides and any losses from escaping rays.arrow_forward
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