Difference between revisions of "Se170063 Thin Window Analysis"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
| − | In order to try to pin down the ratio of pure selenium to the selenium in the soil, try using a 2 channel window to find the signal. The error in the signal will be found by integrating a gaussian over the window and finding the error by expanding sigma by its own error. | + | In order to try to pin down the ratio of pure selenium to the selenium in the soil, try using a 2 channel window to find the signal. The error in the signal will be found by integrating a gaussian over the window and finding the error by expanding sigma by its own error. There seems to be a problem with root's fitting mechanism when I set the amplitude. Even though the max value in the window is given, when trying to set the amplitude to the maximum, the fitter doesn't seem to do that. Below is an example |
| + | |||
| + | |||
{| border="3" cellpadding="5" cellspacing="0" | {| border="3" cellpadding="5" cellspacing="0" | ||
|| || 400 <t< 640 sec || 1100 < t < 1360 sec || 1875 < t < 2150 || 2650 < t < 2930 sec || 3400 < t < 3690 sec || 4120 < t < 4400 sec || 4840 < t < 5130 sec | || || 400 <t< 640 sec || 1100 < t < 1360 sec || 1875 < t < 2150 || 2650 < t < 2930 sec || 3400 < t < 3690 sec || 4120 < t < 4400 sec || 4840 < t < 5130 sec | ||
|- | |- | ||
| − | || | + | ||Thin Window|| |
| + | |- | ||
| + | ||Original Window || | ||
| + | |- | ||
| + | ||Expanded Window || | ||
| + | |- | ||
| + | ||Peak Amplitude ||350000 | ||
| + | |- | ||
| + | ||Given Max In Window || 260980 | ||
| + | |- | ||
| + | ||Thin Window Counts|| | ||
| + | |- | ||
| + | ||Gaussian Integrated over Thin Window || | ||
|- | |- | ||
|} | |} | ||
Revision as of 17:17, 2 November 2017
In order to try to pin down the ratio of pure selenium to the selenium in the soil, try using a 2 channel window to find the signal. The error in the signal will be found by integrating a gaussian over the window and finding the error by expanding sigma by its own error. There seems to be a problem with root's fitting mechanism when I set the amplitude. Even though the max value in the window is given, when trying to set the amplitude to the maximum, the fitter doesn't seem to do that. Below is an example
| 400 <t< 640 sec | 1100 < t < 1360 sec | 1875 < t < 2150 | 2650 < t < 2930 sec | 3400 < t < 3690 sec | 4120 < t < 4400 sec | 4840 < t < 5130 sec | |
| Thin Window | |||||||
| Original Window | |||||||
| Expanded Window | |||||||
| Peak Amplitude | 350000 | ||||||
| Given Max In Window | 260980 | ||||||
| Thin Window Counts | |||||||
| Gaussian Integrated over Thin Window |