Author Topic: Shimadzu EPMA instruments  (Read 71 times)

Probeman

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Shimadzu EPMA instruments
« on: December 24, 2019, 09:45:59 am »
This board is for discussion of Shimadzu hardware (and software).  Probe Software does not support the Shimadzu EPMA instrument, but to be fair it makes sense to provide a forum for Shimadzu EPMA users, just in case any would like to share information or questions about their EPMA instruments.

Interestingly, my first EPMA instrument was an ARL SEMQ at UC Berkeley. The ARL SEMQ was an American made EPMA instrument during the 1970s and 1980s. But the company was bought by Bausch and Lomb and later sold off in the late 1980s. For the record, very early versions of the Probe software actually supported the ARL SEMQ instrument, through a computer hardware interface developed at UC Berkeley by myself and John Friday (now retired).

Now you might ask, what does this have to do with a Shimadzu instrument? But in fact the Shimadzu EPMA instrument, with it's unusual 52.5 deg takeoff angle and six tunable spectrometer layout, is originally based on the ARL SEMQ instrument. In fact, the rights to the ARL instrument division were sold to Advanced Microbeam (USA) and Shimadzu (Japan) many years ago.

Now some of you might have noticed that Probe for EPMA still has support for six tunable spectrometers in its various dialogs (it used to support fixed monochromators tuned to specific emission lines, but no longer!):



And that was because of the early support for a 6 spectrometer ARL instrument, which Shimadzu currently makes. Here is a topic on EPMA history where I discuss some history of this instrument:

https://probesoftware.com/smf/index.php?topic=924.0

and here is a web page I found with some old pictures from a publication by Rinaldi and Llovet:

https://www.researchgate.net/figure/A-more-modern-American-microprobe-of-the-mid-1970s-ARL-SEMQ-at-the-beginning-of_fig2_284187581

I'll try and find some old pictures of my own and scan them... In the meantime for those unfamiliar with the modern Shimadzu EPMA instrument, here is their web page:

https://www.shimadzu.com/an/surface/epma/epma1720.html
« Last Edit: December 24, 2019, 09:57:18 am by Probeman »
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