I wanted to share some photos of a special sample holder that our machine shop made for us in case anyone else runs into a similar situation.
The basic problem is that a scientist from PNNL had a thick rock chip sample that cannot be modified as they want us to also do EPMA on a traverse previously analyzed using SIMS. Also they had some non standard round mounts that were smaller than 25mm.
Here is what the samples looked like:
![](https://probesoftware.com/smf/gallery/395_06_08_18_12_23_07.jpeg)
Note that the rock chip is very thick, approx 10 mm and needs to be top referenced on the Cameca because of the limited Z range. Also the round mounts are very unround!
So our amazing machine shop made this holder for the thick rock chip and some adapters for the round mount:
![](https://probesoftware.com/smf/gallery/395_06_08_18_12_23_26.jpeg)
Here's what they look like all mounted up:
![](https://probesoftware.com/smf/gallery/395_06_08_18_12_23_39.jpeg)
Nice!