UNIVERSITY PHYSICS UCI PKG
11th Edition
ISBN: 9781323575208
Author: YOUNG
Publisher: PEARSON C
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 38, Problem 38.45PP
To determine
Which option will generate higher-energy photons in this linear accelerator.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Higher-energy photons might be desirable for the treatment of certain tumors. Which of these actions would generate higher-energy photons in this linear accelerator? (a) Increasing the number of electrons that hit the tungsten target; (b) accelerating the electrons through a higher potential difference; (c) both (a) and (b); (d) none of these.
Galactic cosmic rays (GCRs) in the 100 MeV-1.00 GeV energy range pose the greatest radiation danger to astronauts in Earth orbit or on future interplanetary missions. As we shall find in the chapter
on nuclear physics, fast-moving protons are 10 times as effective in causing radiation damage as x-rays of the same energy. Approximately 85% of GCRS are fast-moving protons, and spacecraft
traveling in interplanetary space would require thick shielding to attenuate not only the incident cosmic rays, but also the shower of secondary particles created when the cosmic ray particles impacted
the shielding material.
(a) What is the speed (in terms of c) of a 1.00 GeV cosmic ray proton? The rest mass of the proton is 938 MeV. The phrase "a 1.00 GeV cosmic ray proton" means that the kinetic energy of the
proton is 1.00 GeV.
As we contemplate space travel at relativistic speeds, we must consider the low-density abundance of atomic hydrogen in the interstellar medium (ISM), estimated to be…
Provide the answers in 90 minutes, and count as 2 questions if needed.
Chapter 38 Solutions
UNIVERSITY PHYSICS UCI PKG
Ch. 38.1 - Silicon films become better electrical conductors...Ch. 38.2 - Prob. 38.2TYUCh. 38.3 - Prob. 38.3TYUCh. 38.4 - Prob. 38.4TYUCh. 38 - Prob. 38.1DQCh. 38 - Prob. 38.2DQCh. 38 - Prob. 38.3DQCh. 38 - Prob. 38.4DQCh. 38 - Prob. 38.5DQCh. 38 - Prob. 38.6DQ
Ch. 38 - Prob. 38.7DQCh. 38 - Prob. 38.8DQCh. 38 - Prob. 38.9DQCh. 38 - Prob. 38.10DQCh. 38 - Prob. 38.11DQCh. 38 - Prob. 38.12DQCh. 38 - Prob. 38.13DQCh. 38 - Prob. 38.14DQCh. 38 - Prob. 38.15DQCh. 38 - Prob. 38.16DQCh. 38 - Prob. 38.17DQCh. 38 - Prob. 38.1ECh. 38 - Prob. 38.2ECh. 38 - Prob. 38.3ECh. 38 - Prob. 38.4ECh. 38 - Prob. 38.5ECh. 38 - Prob. 38.6ECh. 38 - Prob. 38.7ECh. 38 - Prob. 38.8ECh. 38 - Prob. 38.9ECh. 38 - Prob. 38.10ECh. 38 - Prob. 38.11ECh. 38 - Prob. 38.12ECh. 38 - Prob. 38.13ECh. 38 - Prob. 38.14ECh. 38 - Prob. 38.15ECh. 38 - Prob. 38.16ECh. 38 - Prob. 38.17ECh. 38 - Prob. 38.18ECh. 38 - Prob. 38.19ECh. 38 - Prob. 38.20ECh. 38 - Prob. 38.21ECh. 38 - An electron and a positron are moving toward each...Ch. 38 - Prob. 38.23ECh. 38 - Prob. 38.24ECh. 38 - Prob. 38.25ECh. 38 - Prob. 38.26PCh. 38 - Prob. 38.27PCh. 38 - Prob. 38.28PCh. 38 - Prob. 38.29PCh. 38 - Prob. 38.30PCh. 38 - Prob. 38.31PCh. 38 - Prob. 38.32PCh. 38 - Prob. 38.33PCh. 38 - Prob. 38.34PCh. 38 - Prob. 38.35PCh. 38 - Prob. 38.36PCh. 38 - Prob. 38.37PCh. 38 - Prob. 38.38PCh. 38 - Prob. 38.39PCh. 38 - Prob. 38.40CPCh. 38 - Prob. 38.41PPCh. 38 - Prob. 38.42PPCh. 38 - Prob. 38.43PPCh. 38 - Prob. 38.44PPCh. 38 - Prob. 38.45PP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- How the critical frequency of synchrotron radiation depends on the energy of the electron? - does no depend; -~Y; -~^2; -~y^3; -~y^4.arrow_forwardErnest Rutherford is famous for, among other things, shooting alpha particles at unsuspecting gold atoms. Consider an alpha particle endowed with 5.00 MeV of energy. Determine the closest distance this particle can approach the nucleus of a gold atom before deflectingarrow_forwardTwo electrons are initially held at rest 5pm away from each other. they are then released. when the two electrons are far away from each other, how fast are they moving? remember 1pm=10^-12m. the answer should be 7.1 x 10^6m/s? answer is 7.1x10^6 m/s. please help me calculate this answer value?arrow_forward
- electron passing of 16 : Speed undeviated through a region of cross electric and magnetic fields of magnitude 4 × 105 V/m and 0.02 Wb/m² respectively in meter per an second is ... (a) 2 × 106 (b) 8 × 106 (c) 2 x 107 (d) 8 × 107arrow_forwardPhotons with higher energy could be desirablefor the treatment of certain tumors. Which of these actions would generatephotons with higher energy in this linear accelerator? (a) Increasingthe number of electrons hitting the tungsten target; (b) accelerating the electrons through a higher potential difference; (c) both (a) and (b); (d) neither .arrow_forwardI) What is the frequency of radiation required to supply 1.0 x 102 J of energy from 8.5 x 1027 photons? II) Determine the wavelength of a neutron traveling at 1.00 x 10 m/s (Massneutron = 1.675 x 10 24 g)arrow_forward
- 5. (a) Derive the Larmour radiation formula for an accelerated point charge moving with non-relativistic velocity. (b) An electron is accelerated to 20 keV energy between anode and cathode separated by a distance of 5 cm. Calculate the total energy lost in radiation. 6+4arrow_forwardAn electron accelerated in an x-ray tube hits an anode (positively charged plate) target. V = + High v m/s anode = 4ee6 kV 48 ee 464646 No No w a) Assuming all of its energy is transferred in generating x-rays, how fast is the electron moving when it reaches the anode target if it produces an x-ray with an energy of 60 keV. The mass of the electron is 9.1×10-31 kg. Hint: How is the energy of x-rays related to the KE of the electrons? How is the kinetic energy related to the speed? X-rays cathode b) What is the accelerating potential of the x-ray tube (potental difference between the anode and cathode) in part a)? Va Ponder: How large is this volatge? Remember the a regular AA battery has a voltage of 1.5 V.arrow_forwardAn electron accelerated in an x-ray tube hits an anode (positively charged plate) target. V= HOTE m/s +High V- = anode kV cer cer Ger 4848 46 N Now 484846 a) Assuming all of its energy is transferred in generating x-rays, how fast is the electron moving when it reaches the anode target if it produces an x-ray with an energy of 46 keV . The mass of the electron is 9.1 x10-31 kg. IM M Hint: How is the energy of x-rays related to the KE of the electrons? How is the kinetic energy related to the speed? X-rays cathode b) What is the accelerating potential of the x-ray tube (potental difference between the anode and cathode) in part a)? Va Ponder: How large is this volatge? Remember the a regular AA battery has a voltage of 1.5 V.arrow_forward
- B2arrow_forwardA positron with a kinetic energy of 2.000MeV collides with an electron at rest and the two particles are annihilated. Two photons are produced; one moves in the same direction as the incoming positron and the other moves in the opposite direction. Find the energies of the photons.arrow_forward1) Proton-beam therapy can be preferable to X rays for cancer treatmentbecause protons deliver most of their energy to the tumor, with less damage to healthytissue. A medical cyclotron repeatedly passes the protons through a 15 kV potentialdifference. (a) How many passes are needed to bring the protons’ kinetic energy to 1.2×10−11J? (b) What’s that energy in eV?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningAstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
- University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning