EBK INTRODUCTION TO HEALTH PHYSICS, FIF
5th Edition
ISBN: 9780071835268
Author: Johnson
Publisher: VST
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 9, Problem 9.33P
To determine
The distance up to where the lost source can be detected with a survey meter.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
if a record sample has rate of 44100Hz, how many samples are required to capture 0.25s?
question 4 please
1. Consider the following data from the analysis of mercury using cold vapor atomic absorption
spectrometry:
Concentration (ppm)
10.0
1.00
0.000
No.
of
replicate 15
15
20
measurements
Mean of S
9.95
1.15
0.0124
Standard deviation of 0.12
0.030
0.0075
the measurement, s
The calibration data yielded the following equation:
S= 1.09CHE + 0.298
Where CHg is the concentration in ppm of Hg and S is the relative intensity of the emission line of
Hg. Calculate for the following:
a. Calibration sensitivity
b. Analytical sensitivity at 10.0 and 1.00 ppm of Hg; and
С.
Detection limit
Chapter 9 Solutions
EBK INTRODUCTION TO HEALTH PHYSICS, FIF
Ch. 9 - Prob. 9.1PCh. 9 - Prob. 9.2PCh. 9 - Prob. 9.3PCh. 9 - Prob. 9.4PCh. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - Prob. 9.8PCh. 9 - Prob. 9.9PCh. 9 - Prob. 9.10P
Ch. 9 - Prob. 9.11PCh. 9 - Prob. 9.12PCh. 9 - Prob. 9.13PCh. 9 - A counting system has a background of 360 counts...Ch. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Prob. 9.18PCh. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Prob. 9.21PCh. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24PCh. 9 - Prob. 9.25PCh. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - Prob. 9.31PCh. 9 - Prob. 9.33PCh. 9 - Prob. 9.34PCh. 9 - Prob. 9.35PCh. 9 - Prob. 9.38PCh. 9 - Prob. 9.39PCh. 9 - Prob. 9.44P
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
- What is the dose in mSv for: (a) a 0.1 Gy xray? (b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of exposure?arrow_forwardA small 10-gram source of cobalt-60 is in a vacuum. (a) What is the activity of the cobalt-60source in Bq? (b) What is the actual gamma-ray flux in cm2-s-1 at a point of measurement500 cm from the source due to the cobalt-60 emitted gamma-rays? (c) If the backgroundgamma-ray flux in the vicinity of the 10-g source is 7.8×107cm-2-s-1, what is the totalgamma-ray flux at the point of measurement, including the background? (d) What thicknessof a lead shield in cm would have to be placed between the source and the point ofmeasurement to reduce the total of the background plus the uncollided gamma-ray flux fromthe cobalt-60 source to 1.00×108cm-2-s-1 at that point? (I've attempted part a of the problem and don't know how to continue)arrow_forwardQuestion 19. Pulse-combustion furnaces can be cost-effective in very cold climates or homes with high heating requirements as they allow the maximum amount of heat to be extracted from the burning fuel. Consider a 95%-efficient pulse-combustion natural- gas furnace that is used to heat a house. Using the HHV value of carbon intensity, calculate the carbon emissions per unit of heat delivered to the house in gC/MJ. Show calculations and the source of any additional number used.arrow_forward
- For an alpha particle at the energy of 447.6 MeV, what is the energy deposited by an alpha particle while passing through a cell of size 10 µm?arrow_forwardLead (density 11.34 g/cm³) and concrete (density 2.4 g/cm³) are highly effective materias in radiation shielding. a) What thickness of lead in cm is required to reduce the intensity of a 0.2 MeV gamma ray beam by a factor of 1000. b) What is the thickness of concrete in cm equivalent to that thickness of lead?arrow_forward5. The linear absorption coefficients for 2.0-MeV gamma rays are 4.9 m-1 in water and 52 m-1 in lead. What thickness of water (in mm) would give the same shielding for such gamma rays as 10 mm of lead?arrow_forward
- Calculate the activity of these samples at the given times: 3.06 mCi l-131 (t₁/2 = 8.04 days) at 2.00 days after calibration 5.00 mCi Tc-99m (t1/2 = 6.02 hours) at 48.0 hrs after calibration 10 mCi Tc-99m (λ = 0.1155/hr) at 4.0 hours after calibrationarrow_forwardA radioactive source is producing 1.50 MeV gamma rays. If two detectors are placed 4.00 m and 7.00 m away respectively, what is the ratio of the measured intensities of the near detector over the far detector (I2/I1)? Do NOT include units in your answer answer to 2 decimal places.arrow_forwardThe point source Co-60 emits gamma with energies of 1.17 MeV and 1.33 MeV. Each of these energies emits the same number of photon particles. At a certain location, the flux that is read is 5.7 x 109 photons/cm2.s, what is the intensity or energy flux with units of J/m^2.minarrow_forward
- 5. You figure the Radiation intensity without shielding is 78 mSv/h for a fellow CEDO's radiographic exposure, and behind a close by shield you figure the intensity is 3mSv/h. If the HVL of shielding material is 4 mm, what thickness is that shield?arrow_forwardA, Explain the importance of reducing exposure dose and time to a patient undergoing a diagnostic X-ray examination. Describe ways to achieve this. B, Calculate the wavelength of the most energetic X-rays produced by tube operating at pd of 1×10^6 V, h= 6.6×10^(-34) J, e=1.6×10^(-19) C, c=3×10^8 ms^(-1)arrow_forwardQuestion: The radionuclide Tc-99m is a gamma photon emitter. The emitted gamma photonenergy is 141 keV. The scintillation crystal in a Gamma camera will convert the single gammaphoton to a burst of visible photons. Assuming the generated visible photons wavelength is 550nm, calculate how many visible 550-nm photons will have the same amount of energy as a single141-keV gamma photon?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning