Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 4, Problem 4.29P
To determine
To calculate:
The specific activity of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the activity of 7.918 x 1010 Bq in mCi?
What is the dose in mSv for: (a) a 0.1 Gy x-ray?(b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of α exposure?
A 228Th source is labeled 1.50 mCi, but its present activity is found to be 3.47 ✕ 106 Bq.
(a)What is the present activity in mCi? mCi
(b)How long ago (in y) did it actually have a 1.50 mCi activity?
Chapter 4 Solutions
Introduction To Health Physics
Ch. 4 - Prob. 4.1PCh. 4 - Prob. 4.2PCh. 4 - Prob. 4.3PCh. 4 - Prob. 4.4PCh. 4 - If we start with 5 mg of 210Pb , what would be the...Ch. 4 - Prob. 4.6PCh. 4 - Prob. 4.7PCh. 4 - Prob. 4.8PCh. 4 - Prob. 4.9PCh. 4 - For use in carcinogenesis studies, benzo(a)pyrene...
Ch. 4 - Prob. 4.11PCh. 4 - Calculate the number of beta particles emitted per...Ch. 4 - Prob. 4.13PCh. 4 - Prob. 4.14PCh. 4 - How much 234U is there in 1 metric ton of the...Ch. 4 - Prob. 4.16PCh. 4 - Prob. 4.17PCh. 4 - Prob. 4.18PCh. 4 - The mean concentration of potassium in crustal...Ch. 4 - Prob. 4.20PCh. 4 - Prob. 4.21PCh. 4 - Prob. 4.22PCh. 4 - Prob. 4.23PCh. 4 - Prob. 4.24PCh. 4 - Prob. 4.25PCh. 4 - Prob. 4.26PCh. 4 - Prob. 4.27PCh. 4 - Prob. 4.28PCh. 4 - Prob. 4.29PCh. 4 - Prob. 4.31PCh. 4 - Prob. 4.32PCh. 4 - Prob. 4.33PCh. 4 - Prob. 4.34PCh. 4 - Prob. 4.35PCh. 4 - Prob. 4.36PCh. 4 - Prob. 4.37PCh. 4 - Prob. 4.38PCh. 4 - Prob. 4.39PCh. 4 - Prob. 4.40PCh. 4 - Prob. 4.41PCh. 4 - Prob. 4.42PCh. 4 - Prob. 4.43PCh. 4 - What is the (a) half-life? (b) mean life (in...Ch. 4 - Prob. 4.45PCh. 4 - Prob. 4.46PCh. 4 - Prob. 4.47PCh. 4 - Prob. 4.48PCh. 4 - Prob. 4.49PCh. 4 - Prob. 4.53PCh. 4 - Prob. 4.54PCh. 4 - Prob. 4.55P
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
- Estimate the exposure rate 2 m from 4 Ci sources of 57Co,22Na,65Zn?Exposure Rate constant for 57Co=0.9 (R.cm2) / (hr.mCi)Exposure Rate constant for 22Na =12 (R.cm2) / (hr.mCi)Exposure Rate constant for 65Zn =2.7 (R.cm2) / (hr.mCi)arrow_forwardThe radionuclide 49Sc has a half-life of 57.0 min.At t=0, the counting rate of a sample of it is 6000 counts/min above the general background activity, which is 30 counts/min.Without computation, determine whether the counting rate of the sample will be about equal to the background rate in 3 h, 7 h, 10 h, or a time much longer than 10 h.arrow_forwardCalculate the Equivalent Dose of 0.55 Gy resulting from an exposure to a 6 MV photon source. (WR=1)arrow_forward
- A drug tagged with 4399Tc (half - life = 6.05 h) is prepared for a patient. If the original activity of the sample was 1.1 x 104 Bq, what is its activity after it has been on the shelf for 2.0 h?arrow_forwardA 228Th source is labeled 1.50 mCi, but its present activity is found to be 1.73 ✕ 106 Bq. A.) What is the present activity in mCi? =______mCi B.) How long ago did it actually have a 1.50-mCi activity? =_____yarrow_forwardHow far is the 5.49MeV alpha particles emitted from Am-241 in the air?arrow_forward
- A radioactive contaminant gives an unfortunate 0.5 kg lab rat a dose of 1500 rem in just 1 minute. Assuming that the half life of the radioactive isotope in the contaminant is much longer than1 minute, what would the activity (in Bq) of the contaminant be if the contaminant is a 1.1MeV beta emitter?arrow_forwardWhat is the dose rate for the muscle from g-ray source having flux of 100 photons per cm2/s ? (E g=2 MeV, m =0.025 cm-1)arrow_forwardA drug tagged with 9943Tc (half-life = 6.05 h) is prepared for a patient. If the original activity of the sample was 1.3 ✕ 104 Bq, what is its activity (R) after it has been on the shelf for 2.4 h?arrow_forward
- A 60 Co source is labeled 4.00 mCi, but its present activity is found to be 1.85×107 Bq. (a) What is the present activity in mCi? (b) How long ago did it actually have a 4.00-mCi activity?arrow_forwardcalculate the mass, radius and density of a) 7Li, b) 207Pb, c)stable nuclei of a diameter of 7.46fm.arrow_forwardTypical HVL values for X-ray radiation with energy 1 MeV are 3 cm for bone tissues, 2 cm for aluminum, 0.3 cm for lead. Find mass and linear attenuation coefficients if densities are 1.85 g/cm3 , 2.70 g/cm3 , 11.35 g/cm3, respectively.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
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