| 摘要 |
<p>A method for locating the center of a beam profile, comprises the steps of: providing a beam profile; selecting one or more strips through the beam profile; identifying distinct regions of intensity along the one or more strips and labelling them consistently; calculating a combined average intensity for each labelled region, using data from the one or more strips; plotting the average intensity against the labelled regions and comparing the results with a plot of the actual intensity obtained by taking a cross-section through the center of at least one of the one or more strips; and optimizing the location of the center of at least one of the one or more strips so as to obtain the best fit between the average intensity plot and the actual intensity plot to thereby identify the center of the beam profile.</p> |
