Difference between revisions of "PXRF"
Jump to navigation
Jump to search
| Line 2: | Line 2: | ||
==Introduction== | ==Introduction== | ||
| − | The technique of x-ray fluorescence (XRF) is outlined nicely on [https://en.wikipedia.org/wiki/X-ray_fluorescence Wikipedia]. The fundamentals are, you use high energy x-rays to eject core electrons (Mg -> U) | + | The technique of x-ray fluorescence (XRF) is outlined nicely on [https://en.wikipedia.org/wiki/X-ray_fluorescence Wikipedia]. The fundamentals are, you use high energy x-rays to eject core electrons from an element (Mg -> U) and when electrons in higher orbitals drop in to fill these once occupied orbitals, they emit/fluoresce lower energy x-rays which are then detected. The emission chart below is taken from Wikipedia and showns the emission frequencies for many element. |
[[File:XRFScan.jpg|thumb|600px|none]] | [[File:XRFScan.jpg|thumb|600px|none]] | ||
Revision as of 16:18, 14 January 2022
Monmouth College acquired a portable X-ray Fluorescence (pXRF) spectrometer thru a combination of LeSuer funding (~$20K) and a PittConn Grant (~$10K). The grant proposal can be found here.
Introduction
The technique of x-ray fluorescence (XRF) is outlined nicely on Wikipedia. The fundamentals are, you use high energy x-rays to eject core electrons from an element (Mg -> U) and when electrons in higher orbitals drop in to fill these once occupied orbitals, they emit/fluoresce lower energy x-rays which are then detected. The emission chart below is taken from Wikipedia and showns the emission frequencies for many element.
Instrument
Our instrument is the Bruker Titan S1 - 800 portable/handheld XRF spectrometer. Below is a picture of our instrument:
