Relative values of the total chemiluminescence cross.section for the crossed molecular beam Ca∗+SF6→CaF(A2Π)+SF6 reaction have been measured as a function of collision energy. Both metastable calcium
atom states 3P1
were produced by low voltage de-discharge while translational excitation of the SF6
beam was achieved via the seeding technique. Whereas chemiluminescence yield from the CaF(A2Π) was
observed from both of the metastable atom reactions, no chemiluminescence signal was detected from the
ground atom reaction even though enough translational excitation was used to produc.e that excited
product. By changing the discharge conditions different metastable concentrations were produced to
measure the state-to-state cross-section for both 3P and 1D reactions, as a function of collision energy, up
to 0.6 eV. Laser induced fluorescence of the atomic 4s5s 3S1←4s4p3PJ∘(J=0,1,2,3) lines have been
measured to account for the metastable population in the J=1 level.