major concepts of physics phy 102 – lecture #21 1 2015 syracuse university lecture #21 what is...
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Major Concepts of Physics PHY 102 – Lecture #21 12015Syracuse University
Lecture #21Lecture #21What is radioactivity? What is radioactivity?
April 8April 8thth Spring 2015Spring 2015
Prof. Liviu MovileanuProf. Liviu Movileanu
[email protected] 211, Physics Bldg., 443-8078Room 211, Physics Bldg., 443-8078
Major Concepts of Physics Major Concepts of Physics PHY102PHY102
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1.1. Review – Binding energy and mass deffectReview – Binding energy and mass deffect
2. Conservation laws in Radioactive Decay2. Conservation laws in Radioactive Decay
3. alpha-, beta-, and gama-decays3. alpha-, beta-, and gama-decays
4. Conceptual Examples4. Conceptual Examples
5. Announcements5. Announcements
Lecture objectivesLecture objectives
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Mass defect and binding energyMass defect and binding energy
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Types of radiation and their featuresTypes of radiation and their features
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Charges of various radiationsCharges of various radiations
-decay-decay
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Features of various radiationsFeatures of various radiations
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Conceptual example 29.5Conceptual example 29.5
Conceptual example 29.6Conceptual example 29.6
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Radius of a nucleusRadius of a nucleus
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Beta-decayBeta-decay
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Continuous energy spectrum of electrons Continuous energy spectrum of electrons emitted in beta-decayemitted in beta-decay
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Electron CaptureElectron Capture
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Gamma decay of Thalium Gamma decay of Thalium 8181208208TlTl
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1.1.ReadingReading: Materials are all in Chapter #29. Section 29.3, Radioactivity, Pages 1088-1094Conceptual examples: 29.5, 29.6, 29.7
2.2. Homework:Homework: HW#9 is due on next week’s lab HW#9 is due on next week’s lab
3. This week workshop: Reviewing materials for
Exam 2
3. Next week’s workshop3. Next week’s workshop:: Workshop #12 is devoted to Radioactivity.
AnnouncementsAnnouncements