GM Tube Test Source Manufacturer,Supplier and Exporter in Africa
Product Code : DA-AAN-11403
Quick Answer: The GM Tube Test Source is used to test the beta efficiency of GM tubes. It holds 300 ±5 mg of potassium chloride in a 2 x 13 mm dia. cavity, sealed with clear film of a specified thickness and density.
Last updated: October 2026
Key Features
- 300 ±5 mg of potassium chloride
- Held in a 2 x 13 mm dia. cavity
- Sealed with clear film of specified thickness and density
- Naturally radioactive from 0.0117% potassium-40
- Potassium-40 mean beta energy 560.2 keV
Technical Specifications
| Specification | Value |
|---|---|
| Contents | 300 ±5 mg potassium chloride |
| Cavity | 2 x 13 mm dia. |
| Potassium-40 content | 0.0117% |
| Mean beta energy (potassium-40) | 560.2 keV |
About This Product
Potassium chloride is naturally radioactive because of the 0.0117% of potassium-40 it contains, so a measured sample serves as a beta source for checking how efficiently a GM tube detects beta particles. The source should be kept away from sunlight, as UV will degrade the plastic.
Frequently Asked Questions
Q1. What is the GM Tube Test Source used for?
It is used to test the beta efficiency of GM tubes.
Q2. Why is potassium chloride radioactive?
It contains 0.0117% potassium-40, which has a mean beta energy of 560.2 keV.
Q3. How should the source be stored?
Away from sunlight, because UV will degrade the plastic.
Related: Atoms and Nuclei range, Geiger Muller Counter, Ratemeter.
For a quotation on the GM Tube Test Source, contact Didactic Africa.
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