Lecture 7: Radiation interaction with matter

This lecture covers interaction of radiation with matter, with emphasis is placed on dosimetry and hot atom chemistry. Interaction of radiation with matter is provided, with an overview of different particle interactions. Commonalities and differences for neutrons, charged particles, electron, and photon interactions are provided.  Dosimetry is introduced and explored. Units of dosimetry are described and dosimetry measurements are discussed.  Quality factors based on particle mass and charge are introduced. Introductory dose calculations are supplied. Radiation protection regulations and the definition of terms (ALI, DAC) are given, including levels for use in the UNLV Radiochemistry laboratories. A review of hot atom chemistry closes the lecture.

Quiz 3: Orbitals and energetics, nuclear models, and decay kinetics

Quiz 2 for RDCH 702 can be found at:  http://radchem.nevada.edu/classes/rdch702/quizzes.html.  Please post any questions on this quiz to the blog.  Be prepared to discuss the quiz in class on Wednesday 30 October.

Lecture 6 Part 2: Decay Kinetics

The second part of the decay kinetics lectures focuses on utilizing the described equations.  The lecture begins with a description of parent-daughter decay, with examples from the natural actinide decay series.   Relationships between the parent and daughter isotopes is based on half life differences.  A generalized equation to calculate relative amounts of parent and daughter at any time is provided.  Equations related to expanded decay chains with more than 2 members is provided, emphasizing the Bateman equation.  The use of a program that calculated the decay chain member is given.  Dating with radionuclides is given as a final example of equation utilization.

Lecture 6 Part 1 Decay kinetics

The first part of the lecture covers fundamental decay kinetic equations, manipulation of those equations, and error in counts.  The fundamental equations relating activity with the decay constant and number of atoms is presented.  The equation is expanded into binomial distribution and used to relate counting error with total counts.  Units of activity are defined.  The concept of lifetime is introduced and used to explain Mossbauer spectroscopy.  Half life and activity calculation examples are reviewed.  The first part of the lecture ends with a discussion on mixtures of radionuclides. 

Lecture 5: Nuclear Models

This lecture provides supplemental information on the shell model and nuclear force.  The main aspects of nuclear models are covered in RDCH 701. The strong force is introduced and the similarities of nucleons is discussed, with isospin as a new parameter. The use of mirror nuclei to examine the strong force is presented, emphasizing the normalization of Coulomb energy for mirror nuclei. An overview of nuclear potentials is provided and used to discuss the shell model. States of the shell model and their relationship to magic numbers are discussed. Use of the shell model is determine spin and parity is presented. The relationship between spin and parity with nuclear deformation is introduced with Nilsson diagrams. The correlation between spin, deformation, nuclear shape (spherical, oblate, prolate) is provided.

The homework question can be e-mailed or returned in class on 14 October.

Lecture 4: Orbitals and energetics

This lecture covers fundamentals of electron orbitals and energetics in chemical bonding with examples provided for d and f metal.  The point group of molecules is reviewed with examples provided. Correlations between bonding and structure are provided with point groups for different coordination numbers explored. Bonding based on molecular orbital theory is given and linked to ligand field theory is reviewed. Charge transfer in metal-ligand interaction is discussed.  The utility of spectroscopy in evaluating electron interactions in bonding is presented. The lecture supplies a fundamental understanding of the chemical interactions germane to radionuclide complexes and should act as a review for students.

The homework can be e-mailed or returned on 7 October.

Quiz 2: Kinetics, Thermodynamics, and Speciation

The second quiz for RDCH 702 is posted at:  http://radchem.nevada.edu/classes/rdch702/quizzes.html.  Please post any question you have to the blog.  Be prepared to discuss the quiz in detail on 7 October 2013.

Lecture 3, Part 2: Nuclear Reactions

The second part of the lecture on nuclear reactions is posted.  In this lecture nuclear reaction cross sections are discussed.  The range of cross section values, how they are measured, and how to use them are provided.  A range of light and heavy ion reactions are introduced.  The role of particle and energy in reaction systematics is provided.  The stellar production of elements is presented in terms of nuclear reactions. The different processes involved in the formation of isotopes is provided.

This lecture will be presented in class on 23 September.

Lecture 3, Part 1: Nuclear Reactions

The first part of the nuclear reactions lecture is posted.  Reaction energetics, threshold energy, and Coulomb barriers are described.  The use and determination of cross section data are provided.  Be prepared to discuss this lecture during meeting on 23 September.

Quiz 1: Lecture 1: Introduction and Chart of the Nuclides

The 1st quiz for RDCH 702 is posted at:  http://radchem.nevada.edu/classes/rdch702/quizzes.html.  Please post any question you have to the blog.  Be prepared to discuss the quiz in detail on 23 September.

Lecture 2, Part 2 Thermodynamics and kinetics

The second part of the lecture on thermodynamics and kinetics is now available.  Part 2 reviews equilibrium and speciation calculations.  Equilibrium constants are reviewed and speciation models presented.  

confirmation of element 115

Announcement of element 115 confirmation.

Lecture 2, part 1: Kinetics and Thermodynamics

The first part of the lecture on thermodynamics and kinetics is now available.  Part 1 reviews thermodynamics, redox and half-cell reactions, kinetics, acid-base reactions, buffers, and hydrolysis.  This section should be an overview.

lecture 1: introduction and chart of the nuclides

Please add comments to lecture 1.  Include questions or comments.  Lecture with audio is posted.  Please be prepared to discuss lecture during next class meeting on 4 September.  The homework on the final page can be returned by emailed or submitted during class meeting on 4 September.  

Introduction

Blog for RDCH 702 Radiochemistry.  http://radchem.nevada.edu/classes/rdch702/index.htm