Radiation Chemistry

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Department of Nuclear Chemistry

Part one of this course deals with the formation of Primary Intermediate Products of radiolysis (PIP) caused by the absorption of ionizing radiation in matters. General overview of their properties and reactions leading to the formation of Stable Products of Radiolysis (SPR) is given in this part as well. The part two (systematic radiation chemistry) is dedicated to the radiolysis of selected material systems.


Basic knowledge in the properties of ionizing radiation and its interactions with matter.

Syllabus of lectures:

1. The scope of radiation chemistry, its relation to other scientific

disciplines, the interactions of directly ionising (charged particles) and

indirectly ionising (neutrons, photons) radiation with a matter as starting

point of radiation-chemical reaction (radiolysis).

2. The primary intermediate products (PIP) of radiolysis, their formation and

properties: Excited states, cations, electrons, radicals and anions. Complex

excited states: Excimers, exciplexes, plasmons. Superexcited states, high

Rydberg states.

3. Electrons generated by irradiation as the most important agens responsible for

the deposition of the radiation energy in a matter, electron degradation

spectrum. The thermalization and solvation of electrons.

4. Relaxation processes in excited atoms and molecules.

5. The reactions of PIP giving the stable products of radiolysis.

6. The track of an ionising charged particle and its structure. The types of

radiation-chemical yields, ionic-pair yield M/N, its meaning and use.

7. The stages of radiolysis: Physical stage, physicochemical stage chemical stage

and their products. The stage of post-effects (either chemical or biological).

8. The kinetics of radiation-chemical processes, Bodenstein's principle of steady

concentrations and its application, the fundamentals of diffusion kinetics.

9. The radiolysis of gases: Ionisation in noble gases, the radiolysis of selected

gaseous elements, the radiolysis of N2O and its use in dosimetry, the radiolysis

of water vapour.

10. The radiolysis of liquid water: The mechanism, the properties and reactivity

of radiolytic products, the influence of conditions during the irradiation on

the result of radiolysis.

11. The radiolysis of the water solutions of selected inorganic compounds, the

radiolysis of solutions containing Fe2+ and Ce4+ ions, their use in dosimetry.

12. The radiolysis of the water solutions of selected organic compounds.

13. The radiolysis of selected organic liquids.

14. The influence of radiation on the properties of solids and their radiolysis:

Metals and alloys, semiconductors, the halides of alkali metals, metal oxides,

organic solids and polymers.

Syllabus of tutorials:
Study Objective:

Introductory course of radiation chemistry which provides for students basic information on chemical reactions initiated by ionizing radiation.

Gained knowledge allow to the students better orientation within the large scope of problems that present radiation chemistry investigates and their better understanding.

Study materials:

Key references:

1.Spinks, J. W. T., Woods, R. J.: An Introduction to Radiation Chemistry, third edition, John Wiley & Sons, Inc., 1990

2.Mozumder, A.: Fundamentals of Radiation Chemistry, Academic Press, 1999

Recommended references:

1.Jonah, C. D., Rao, B. S. M., eds: Radiation Chemistry - Present Status and Future Trends, Elsevier, 2001

2.Woods, R. J., Pikaev, A. K.: Applied Radiation Chemistry - Radiation Processing, John Wiley & Sons, Inc., 1994

3.Bednář, J.: Theoretical Foundations of Radiation Chemistry, Academia Prague, 1990

4.Farhataziz, Rodgers, M. A. J., eds: Radiation Chemistry - Principles and Applications, VCH Publishers, Inc., New York, 1987

Further information:
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