Changes between Version 7 and Version 8 of KEMM37/Lab1A
- Timestamp:
- Jan 25, 2018 6:55:53 AM (7 years ago)
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KEMM37/Lab1A
v7 v8 156 156 Find the section labelled "Polydispersity and Orientational Distribution" 157 157 158 Click the "On" radio button and a new section should appear labelled "Distribution of radius".158 - Click the "On" radio button and a new section should appear labelled "Distribution of radius". 159 159 160 Enter a value for "PD[ratio]" between 0.0 and 1.0 - this is the polydispersity defined as sigma_r/r.160 - Enter a value for "PD[ratio]" between 0.0 and 1.0 - this is the polydispersity defined as sigma_r/r. 161 161 162 162 What effect does varying the polydispersity have on the scattering curve? … … 169 169 === [=#section24 2.4 Resolution] === 170 170 {{{ 171 #!div style="background: light 171 #!div style="background: lightblue" 172 172 [=#task9 **TASK 9:**] Apply resolution functions to your model 173 173 … … 176 176 Find the section labelled "Polydispersity and Orientational Distribution" 177 177 178 Click the "Off" radio button and the polydispersity section should disappear178 - Click the "Off" radio button and the polydispersity section should disappear 179 179 180 180 Find the section labelled "Set Instrumental Smearing" 181 181 182 Click on the "Custom Pinhole Smear" radio button and a data entry box should appear.182 - Click on the "Custom Pinhole Smear" radio button and a data entry box should appear. 183 183 184 Enter a value for the percentage dQ/Q that is applied to the model - start with a value of 10.184 - Enter a value for the percentage dQ/Q that is applied to the model - start with a value of 10. 185 185 186 Try various values of dQ/Q ranging from 1% to 50%.186 - Try various values of dQ/Q ranging from 1% to 50%. 187 187 188 188 What effect does this have on the scattering curve?