Handheld XRF:
Radiation Safety Guide
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Author(s): | A. Armstrong & N. Lawler |
Reviewer(s): | H. Barnes |
Supervisor Approval: | D. Houpt |
Origination date: | 2017 371T |
Current version: | V371T |
Revised: |
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Domain: | X-Ray |
System: | XRF |
Keywords: | Elemental analysis |
In This Manual
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| Table of Contents |
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2
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Radiation Safety
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2
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Biological Effects of Radiation
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4
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Radiation Dose Limits
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6
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Measuring Radiation
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7
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Reducing Exposure
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8
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Specific XRF User Requirements
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Introduction
When X-ray radiation from the handheld XRF (pXRF) instruments' X-ray tube excites the atoms in the sample, the atoms release fluorescent X-rays. The energy level of each fluorescent X-ray is characteristic of the element excited. As a result, one can tell what elements are present based on the energies of the X-ray emitted. The Olympus Delta pXRF detects and determines the fluorescent X-ray energies, produced. These energy patterns are characteristic to specific elements and allows for elemental measurements on section halves and discrete samples. However, as the pXRF emits radiation (from 8-40keV), a comprehensive knowledge of radiation safety and procedures is needed.
Radiation Safety
What is Radiation?
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Figure 4, below, states the Olympus DELTA Series pXRF measured doses of scattered radiation, based on pXRF target and position.
Figure 4. Olympus DELTA Series Measured Doses Chart
Handheld XRF Analyzer Safety Design
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