tailieunhanh - Ebook Spectrum Techniques - Lab Manual Teacher’s Version

This manual is written to help the instructors as much as to help the students. The set-up of the manual itself is to assist you get a laboratory experiment or classroom demonstration set-up and run. We also try to help with the student learning but we can’t guarantee it every time. | Spectrum Techniques Lab Manual Teacher’s Version Revised, March 2011 Table of Contents Instructor Usage of this Lab Manual 3 What is Radiation? . 4 Introduction to Geiger-Müller Counters 8 Good Graphing Techniques . 10 Sample Lesson Plan (with comments on Radiation Safety) 12 Experiments 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Plotting a Geiger Plateau 14 Statistics of Counting . 22 Background . 28 Resolving Time . 34 Geiger Tube Efficiency 42 Shelf Ratios. 48 Backscattering. 54 Inverse Square Law 64 Range of Alpha Particles. 69 Absorption of Beta Particles 76 Beta Decay Energy . 81 Absorption of Gamma Rays 88 Half-Life of Ba-137m . 96 Appendices A. B. C. D. E. F. SI Units . 109 Common Radioactive Sources 111 Statistics 112 Radiation Passing Through Matter 119 Suggested References 123 NRC Regulations .

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