MEDRADSC 3H03 Lecture Notes - Lecture 9: Scattering, Absorbance, Calipers
12 Mar 2018
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Https://www. mathsisfun. com/data/standard-deviation-formulas. html (explanation and sample calculations) http://support. casio. com/pdf/004/fx115ms_991ms_e. pdf (calculator manual, see page 26) Housekeeping: test#2 march 19th @ 9:30am, short answer, 25 marks, focus on labs, only a couple purely lecture based questions (up to lecture 8, but only content from cluster 2) Labs: provide brief rationale and evidence for peer and self evals to avoid bully, feedback for good and bad. Lower energies higher photoelectric effect: higher energies scatter, lower overall contrast, harder to achieve small technique adjustments (big jumps when changing mas setting = harder to do adjustments, changing kvp by single increments = easier adjustments) Qc testing of generator: accuracy of tube voltage loading (kv accuracy, accuracy of tube loading time (timer accuracy, radiation output reproducibility (coefficient of variation, mas reciprocity, radiation output linearity (mas linearity) Leeds test tool (contrast detectability: high contrast resolution. Small bright white circles, looking to see how many you can distinguish: low contrast resolution.
