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Sealed Radioactive Source, Americium
Sealed Radioactive Source, Americium (Product Code: SLE/PHY/49) is a 5 µCi (185 kBq) americium-241 sealed source used for alpha-particle experiments in school and college physics laboratories. Its active material sits in a silver-palladium disc that transmits a substantial proportion of the alpha particles plus a small amount of low-energy gamma emission, and the mount is colour-coded brown. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Isotope | Americium-241 |
| Activity | 5 µCi (185 kBq) |
| Emissions | Alpha, plus a small amount of low-energy gamma |
| Active element | Silver-palladium disc; active material enclosed in metal foil |
| Mount | Cylindrical mount with a 4 mm diameter stem |
| Window protection | Wire gauze cap over the open window of the mount |
| Identification | Nature and strength engraved on the mount; colour code brown |
| Storage | Small lead castle inside a labelled MDF storage box, 100 x 75 x 65 mm high |
| Documentation | Data sheet enclosed with each source |
| Product code | SLE/PHY/49 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Americium Source Used For?
The americium source is the usual alpha emitter for teaching radioactivity. With a GM tube and counter, students show that alpha particles have a short range in air and are stopped by a sheet of paper, then compare that with the greater penetration of beta and gamma radiation. The 4 mm stem lets the source be clamped at a fixed, repeatable distance from the detector, which makes it a reliable part of a radiation experiment kit for Indian schools and colleges.
Handle the source only with tongs or forceps, keep the window pointing away from the body, and return it to its lead castle and box as soon as readings are complete. Never touch or try to clean the foil; the wire gauze cap is there to protect it. Americium-241 is long-lived, so the count rate changes very little from one year to the next.
What to Specify When Ordering
- Which sources you need: this americium alpha source, and whether cobalt or strontium sources are needed too.
- Quantity of each source.
- Delivery destination and any radiation-source authorisation details your institution must provide.
Supplier
ScienceLab, the trading name of Jain Scientific Equipments Private Limited, supplies sealed radioactive sources for teaching laboratories from Ambala, Haryana, India. The company sources the americium source and can quote it together with the detector and counter needed to use it. Company details are on our profile page.
Related Physics Lab Equipment
Build a full alpha, beta and gamma practical around the Sealed Radioactive Source, Americium with these items:
- Sealed Radioactive Source, Cobalt — gamma source for penetration comparisons.
- Sealed Radioactive Source, Strontium — beta source for absorber experiments.
- Geiger Muller Tube Holder — mounts the GM tube that detects the radiation.
- Scaler Timer — counts the pulses over set intervals.
- Geiger Counter — survey meter for checking the source store and background.
See the complete Physics Lab Equipment range.
Frequently Asked Questions
What is the activity of the Sealed Radioactive Source, Americium?
The Sealed Radioactive Source, Americium contains 5 µCi (185 kBq) of americium-241. The nature and strength of the source are engraved on its mount, and a data sheet is enclosed with each source for your records.
What radiation does the Sealed Radioactive Source, Americium emit?
The Sealed Radioactive Source, Americium emits alpha particles and a small amount of low-energy gamma radiation. Its silver-palladium disc transmits a substantial proportion of the alpha particles, which suits alpha range and absorption practicals.
How is the Sealed Radioactive Source, Americium stored?
Each Sealed Radioactive Source, Americium comes in a small lead castle inside a labelled MDF storage box, 100 x 75 x 65 mm high. Keep it in a locked, labelled radioactive-source store and record every issue and return.
How can staff identify the Sealed Radioactive Source, Americium?
The Sealed Radioactive Source, Americium is colour-coded brown, and its nature and strength are engraved on the cylindrical mount. This lets staff tell it apart quickly from other sealed sources kept in the same store.
Is an authorisation needed to buy the Sealed Radioactive Source, Americium?
Radioactive sources are regulated in most countries, so check with your national radiation-safety authority what your institution needs before ordering the Sealed Radioactive Source, Americium. Share those requirements and the destination with us when you enquire.
Who supplies the Sealed Radioactive Source, Americium?
The Sealed Radioactive Source, Americium is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, to schools, colleges and institutions in India and international markets, subject to the destination's rules for radioactive materials.
Request a Quote
Send your source requirement and destination through our contact page, or list the sources and counting equipment in the enquiry cart for a quotation.
Last updated: 24 September 2026
