This lecture covers the fundamental equations that describe the decay of radionuclides; covered in two parts. Basic equations and their utility are presented. The implications on error from counting is provided. Equations for mixtures, equilibrium, and branching of radionuclides are covered. The use of a program to solve the Bateman equation is presented. The use of cross sections in determining production rates are covered. Saturation in isotope production due to the decay of the daughter is described. Discussion of natural radiation and dating are given. Examples are provided using the equations under a host of conditions. These include examples for dating from 238U, 14C, and the Oklo reactor. Lecture 1 is 44 minutes, lecture 2 is 31 minutes. The PDF quiz is due 24 October 2016.
PDF quiz 6 is now available.
ReplyDeleteLectures completed and quiz submitted. I believe there maybe an error in question 1.
ReplyDeletei am confused about it as well, i emailed Ken asking about it.
ReplyDeleteThe error is the count time. It should be seconds rather than minutes. The change has been made. This should now be clear. Thanks for the notification.
ReplyDeletequiz submitted.
ReplyDeleteQuiz submitted
ReplyDeletethank for the quiz
DeleteI made a correction in question 1. It should read 250 seconds rather than minutes. This will change the answer from the initial calculation.
ReplyDeleteThe total number of counts it:
20 Bq x 250 seconds X 0.075 = 375 counts. The error is the square root of this number, 19.4. So the counts can range from 375 +- 19.4.
Answers to PDF quiz 6 are now available.
ReplyDelete