OrsayDev / OrsayLaser

Instrumentation for Laser / Blanker / Gain usage in Nionswift
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Fitting Issue #32

Closed yvesauad closed 4 years ago

yvesauad commented 4 years ago

I implemented an fitting procedure to my data. Procedures in order to access quality of my fitting:

i) Fit my off_laser data and estimate FWHM with dispersion given by VSM (laser off) ii) smooth data (laser on+off) iii) Option to re_check dispersion (normally ON) to fine adjust dispersion based on my gain/loss peaks (laser on). iv) Fit my data with open parameters (energy array + number of desired orders given):

The issue: i am experiencing large discrepancies in my first dispersion and the measured one. Also experiencing large discrepancies in my FWHM calculated when compared to my FWHM stimated visually.

First guess solution: I have many small residual peaks comming from afterglow. Of course we need to kick these out. Also, even if this is my first guess, i need to recheck other things as i have never tested this feature before. Fitting feature was only extensively tested in my power measurements

check figure to see how afterglow is comparable to my gain and loss peaks.

image

yvesauad commented 4 years ago

Corrected in commit v.1.6.2. Will check on microscope