1. JEOL FEG electron column
What are advantages of JEOL FEG over CAMECA FEG? Is 3 year old FEG tip on JEOL able to keep beam stable within 0.2% of initial value (with clean apertures) within 24h+? Because it is daily possible with Cameca FEG, Also Cameca FEG control is not Locked out from power users, which allows all kind of clever manipulations of FEG (prolonging its lifetime, or temporary increasing the brightness), where JEOL AFA I heared Hides away any possibility to manipulate any FEG settings (maybe except on, off, standby).
6. JEOL electronics
What so special about that?
Stage with linear optical encoding (2.), how that will work without Cameca VME board?
Cameca WDS spectrometers, the same useless without Cameca electronics in VME board.
Cameca Light optics... these again is quite integrated with Cameca electronics, how without it?
Personally I find Cameca electronics logically laid out and not so hard to troubleshoot when things stops working as intended. I find VME as backbone for electronics to be best chosen platform. It is not a coincidence that VME is still used in mil/air/space and industrial env.
It also is quite future proof and I think there are possibilities to Hack-around and make own replacements or replace cards in the future for improved functionality of some parts. The only complaint about Cameca electronics from me is that Communication between PowerQuiccII and PC could be stepped-up to 100Mbit from currently used 10Mbit.
What so special about JEOL electronics?