A significant discrepancy between Al chamber measurement obtained by Claudiu and Al film measurement obtained in October was observed. Adding Monte-carlo data into the mix, I found an unusually large discrepancy between MC and chamber measurement. If we add Jan 23rd data of Aluminum into the mix, which we know is 2 sheets of aluminum(#32 and #33), the profile is very close to Monte-Carlo simulation. The question now is, what is the foil used in October's Vickers experiment?
February 07 update: The foil used in October's Vickers experiment is the same as Jan 23rd. The results from October seem to be 0.5% narrower than Jan 23rd film measurement, which can be due to different distance between exit window and film. Also note that the green circle just shows the excellent circular symmetry of electron beam, allowing easy contouring and circular fitting in Matlab. I'll try to submit a Vicker X-ray contour soon to compare.
No comments:
Post a Comment