I am writing a paper where the dates of commercial introduction of EPMAs are important. Does anyone know the dates for the ARL SEMQ-II and EMX-SM and the JEOL JXA-50A?
The JEOL JXA-50A came out in 1971,
History of JEOL EPMA's (From a talk to honor Dr. Hideyuki Takahashi when he received the MAS Presidential Science Award in 2021)
1959: Kick off (The column was a modified JEM-5A)
1960: Prof Castaing was invited to Japan
1961: JXA-2 (Prototype)
1962: JXA-3 (1st commercial type)
1968: JXA-5
1969: Lunar rocks were analyzed
1971: JXA-50A
1978: JXA-733 (mini-lens)
1982: JCMA-733 (LDE, stage mapping, DEC)
1986: JXA-8600, JXA-8621 (WD/ED)
1994: JXA-8800, JXA8900 (WS, H-type)
2000: JXA-8100, JXA-8200 (Phase, Particle...)
2003: JXA-8500F (1st FE-EPMA)
2009: JXA-8230, JXA-8530F
2019: JXA-iSP100, JXA-iHP200F