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remote_control_experiments:neutron_activation_of_ag
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remote_control_experiments:neutron_activation_of_ag [2023-10-03 11:57] Jon Peter Omtvedt |
remote_control_experiments:neutron_activation_of_ag [2023-10-03 12:09] (current) Jon Peter Omtvedt |
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| Repeat the procedure above for all your irradiation times. This will conclude the experimental part of your experiment. Remember that if you start an irradiation that somehow did not work out as expected (e.g. wrong preset time) you //must// wait for the induced radioactivity in the silver disk to die out before making a new attempt. Otherwise the measured activity is not representative for the selected irradiation time. | Repeat the procedure above for all your irradiation times. This will conclude the experimental part of your experiment. Remember that if you start an irradiation that somehow did not work out as expected (e.g. wrong preset time) you //must// wait for the induced radioactivity in the silver disk to die out before making a new attempt. Otherwise the measured activity is not representative for the selected irradiation time. | ||
| - | ==== Analyzing a two-component Decay curve ==== | + | ==== Plotting the Measured Data ==== |
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| - | //Plotting the Measured Data//\\ | + | |
| Use a high-quality data plotting and fitting program (e.g. Origin) to plot and analyze the data. If you use the plotting program to also " | Use a high-quality data plotting and fitting program (e.g. Origin) to plot and analyze the data. If you use the plotting program to also " | ||
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| * Plot the data - does it look OK? If not, find the error. Your measurement points should lie on a line that gradually decay in a smooth way (within statistical uncertainty). | * Plot the data - does it look OK? If not, find the error. Your measurement points should lie on a line that gradually decay in a smooth way (within statistical uncertainty). | ||
| - | //Deconvoluting the Decay Curve//\\ | + | ==== Deconvoluting the Decay Curve ==== |
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| + | Notice: The steps indicated below is not very detailed. We assume that you have a teacher physically present that can help you use whatever software and method he/she has prepared for this exercise. How your teaching institution use the data measured with this RoboLab will vary. They might also have provided a more detailed description than what is provided below. | ||
| //Manual Method//\\ | //Manual Method//\\ | ||
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| //Automated Method//\\ | //Automated Method//\\ | ||
| - | Use the Origin data-fitting functionality to determine the measured half-life of both components simultaneously. | + | Use your plotting programs |
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| - | __Analyzing | + | ==== Analyzing |
| - | From analyzing the decay curves for the different irradiation times (12, 24, 48, 72, and 144 s) you should have five R< | + | From analyzing the decay curves for the different irradiation times (e.g. 12, 24, 48, 72, and 144 s) you should have a corresponding number of R< |
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| + | Notice: Again, the above description is not very detailed. Your teacher will instruct how your are supposed to do this for your particular exercise with the RoboLab system. | ||
| - | ==== Questions for the students ==== | ||
| - | Use the cross-sections from the nuclear chart, the half life and a thermal neutron-flux of 2*103 n/ | ||
| - | Determine what kind of gamma radiation to expect from the silver isotopes produced in the irradiation and their associated relative intensity (e.g. from Berkeley/ | ||
remote_control_experiments/neutron_activation_of_ag.1696327049.txt.gz · Last modified: 2023-10-03 11:57 by Jon Peter Omtvedt