This lecture covers interaction of radiation with matter. Emphasis is placed on dosimetry and hot atom chemistry. Resulting chemical reactions and effects are highlighted. Dosimetry is introduced and explored. Units of dosimetry are described. Dosimetry measurements are discussed and 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 is given. The lecture is 42 minutes.
Lecture 7 PDF quiz is now posted.
ReplyDeleteLecture completed. Quiz submitted. Do the halogenated hydrocarbons used in hot atom chemistry ever have radiolysis issues that impact the efficiency and effectiveness of the purification process?
ReplyDeleteLecture and pdf quiz are submitted.
ReplyDeleteIt should be possible to use the characteristic of the radiolysis of water and organic liquid for redox reactions.
Lecture complete and quiz submitted. What is activated AgI used for? Or is it just a mechanism for having a solid radioactive iodine sample?
ReplyDeleteThe purified I-128 would not need to stay in solid form, if acidified, becoming a liquid I-128 source. It is kind of interesting that the gamma energy is sufficient to break the I-128 chemical bond but not any unactivated I-127 in close proximity? The I-127 impurity level would be interesting. Perhaps as a stable isotope it doesn't matter as it would be a short half-life, low mass activity standard and would simply be seen as traces of stable iodine carrier?
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