First Results from the K-State MOTRIMS Experiment. For the first round of experiments, we chose to study 6 keV Cs + + Rb(5s), Rb(5p). [Note we get both states of Rb as a consequence of the cooling and trapping lasers.]
For the first round of experiments, we chose to study 6 keV Cs+ + Rb(5s), Rb(5p). [Note we get both states of Rb as a consequence of the cooling and trapping lasers.]
What follows are a few key slides, briefly showing the setup, and some results.
Projectile PSD and F.cup
Recoil ion Spectrometer
Recoil ion PSD
April 6th ,2000
The rubidium cloud is a 0.6 mm diameter sphere with a few 1010 atoms/cm3 density
The “drop & recapture” technique was used to roughly determine the temperature of the Rb MOT. Result: 129K 50K.
Note the structure in the scattering angle for the 5s-6s line.
The Q-value is used to identify the initial and final states in the collisions. The red labels are used to identify capture from excited Rb atoms, while blue labels are used to identify capture from ground state Rb atoms
Same as at left, but corrected for B-field distortion