As someone from the other side of the street (Cameca, all P10 flow detectors), I am somewhat mystified by the characteristic peaks we see here at ASU's 8530F on the LIF using the Xe-detectors; specifically for Fe Ka and Ti Ka.
They are clearly "forked" with both forks of the same height (at least on the Ti one I am starring at, with the left peak at 191.14 and the right peak at 19.25). Is this normal for a brand new Jeol probe? What is causing this behavior? On my Cameca, I will see clearly Ka1 and Ka2 but with clearly different intensities, and it is obvious which one to center on.
To be absolutely clear, I am talking about
(1) the characteristic X-ray Ka peak shape when a peak scan is done,
(2) where the PHA is adjusted/set properly-- the pulse center is sitting at 4-5 volts on the PHA distribution display (0.7-10 v display).