Mitsuhashi
I measured the beam size and fitted beam propagation.
When I measured the beam size, I used ND(2.0) filter.
The result of it was as follows and attached.The width of error bar are 2σ.
x[mm] | Radius of the beam [mm] |
447 | 0.1518±0.0040 |
465 | 0.1480±0.0022 |
488 | 0.1629±0.0033 |
507 | 0.1819±0.0027 |
514 | 0.2059±0.0035 |
530 | 0.2306±0.0029 |