Difference between revisions of "Position Resolution Study"
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The goal is to figure out what the error on the gems is. 75um is the assumed error, but we wanted to calculate it using our data. | The goal is to figure out what the error on the gems is. 75um is the assumed error, but we wanted to calculate it using our data. | ||
| − | With a Gaussian error distribution we must use | + | With a Gaussian error distribution we must use <math>\Dealta\x^2</math> |
Revision as of 10:59, 5 August 2011
Before we made any corrections to it, a count of the difference between measured path and predicted path using the other 2 gems
Using a slope vs difference plot, we noticed a correlation that should not have been there.
We decided that our Z distance (distance between gems) was off. This could have been due to human error or not know where exactly a partical interacts with the gas. Using RMS VS %Z distance we got the following.
Using the parameters, we can concluded what the lowest Sigma was and adjusted the the Z distance. Our final difference looked like this.
The goal is to figure out what the error on the gems is. 75um is the assumed error, but we wanted to calculate it using our data.
With a Gaussian error distribution we must use <math>\Dealta\x^2</math>
