SPI Supplies Brand Prickly Gold on Copper TEM Grid Unmounted
This is one of those kinds of specimens that just shows up everywhere since it is so versatile. It's primary use is with an SEM because the unique structure of the prickly gold is about as ideal as one could hope in terms of checking for astigmatism. The specimen itself consists of 100 mesh copper grid which has been given a unique proprietary coating of "prickly" gold.
For TEM applications but when operating in the STEM or SEM mode, it would be better to order the product unmounted.
For TEM, it is one of the best for checking and correcting for astigmatism when operating in the SEM mode. Generally speaking for this kind of application, the product should be ordered "unmounted".