Hi guys
Here is an repeat xrf of my office coffee .
This time with x ray? source
KV 60
MA 0.1
Exposure time about 5 secs??
ALARA protections taken
The peaks are Fe,Ni,Zn and possibly rubidium
The Fe/Ni could be from any stainless steel heating element during roasting or brewing plus naturally existing.
Ni is a concern since some of us including myself have nickel allergy.
There appears to? be lots of noise on the left?
Kindly pm any questions regarding setup
Taray
