Adjust Parameters in the PSI Program

ProposalTo convert the scaled intensity to the real in-tensity at the CCD., we calibrate the coeffi-cient that the real intensity is divided by thescaled intensity.

We identify whether the coefficient is con-stant at different powers and distances.

Further, we measure the position of the wai-st size compared to the former test.

𝐶𝑜𝑒𝑓 =𝐼𝑛𝑡

𝐼𝑠𝑐

AnalysisThe Waist Size

Date ws (cm)Distance to 1st

BS of PSI system (m)

4/13 0.011 7.37

4/18 0.009 4.63

Deviation = 18 %

The Coefficient

ConclusionsBy this analysis, we found somewhat no-tices in the PSI experiment. For example,we have to put out the odd interval pixelsof the figure when taking the picture byCCD.

In addition, we could do better in pho-tographing especially for checking whetherthere is no interferometry or tilt setup tothe CCD.

Some plots are presented as followed:

Position = 5.41 m & P = 8.95 micro W

Position = 5.41 m & P = 30.6 micro W Position = 5.66 m & P = 30.3 micro W

Position = 5.91 m & P = 29.4 micro W