We have acquired the profiles for the 991 keV, 1213 keV, 1587 keV and 1799 keV resonances. The fits looks reasonably well (in the attachement). We also get a preliminary (but very good) calibration curve (in attachment).
The beam spread from the fits seems to be close to 200 eV. The only problem we see is the stability of the beam energy: it tends to drift a bit from run to run. Tomorrow we will take some stability measurements and we will scan the last resonances at 632 keV. |