Radioactive Sources (Domestic USA)

License Free

All our radioactive isotopes and sources are legal to purchase and own by the general public.
See NRC Regulations.

Sample radioactive sources are for testing the functionality of a Geiger counter and for performing experiments involving radioactivity.

These are safe, uncalibrated solid sealed sources. They are fabricated by depositing a license exempt quantity of radioactive material in the well of a 1-inch diameter (25mm) by 1/8-inch thick (3mm) plastic disk. The well is filled with an epoxy sealing the radioactive material inside the source.

Contains ±20% of the stated activity and are routinely compared to calibrated reference standards. Each disk is identified by radio nuclide, amount of activity, serial number and calibration date. The words "Caution - Radioactive Material" appear on the label of each source.

Radioactive Sources

*Shipping Prices are for ground shipments only. Call or email for all other services.

Laminated Mylar Window Sources

Source Certificates

Several types of source certificates are available for an additional fee. All certificates must be ordered at the same time the source is ordered.

Certificate of Origin: Certifies that the product is manufactured in Oak Ridge Tennessee, Anderson County United States of America.

Certificate of Compliance: Certifies that the source is in compliance with the US NRC and DOT regulation and that the surface has been wipe tested.

Certificate of Calibration: Certifies that the source has been calibrated, list intensity, emission and uncertainty. (Only available for Gamma sources.)

Alpha Particle Radioactive Source

Description	Activity	Half-Life	Item#	Price
Polonium-210	250 uCi	138 days	PO-210-250	$129.95
	500 uCi	138 days	PO-210-500	$195.95
	Primary Radiation Type	Energies KeV	Secondary Radiation Type(s)
	Alpha (a)	5304.5	N/A

250 uCi Alpha Source		500 uCi Alpha Source

Alpha Particle Source Information

Cloud Chamber/Spinthariscope Needle Sources

These sources are used for viewing radioactive particle trails in a cloud chamber or spinthariscopes.

The needle sources are mounted in stoppers. The activity is deposited on the ends of the needles. Rubber stoppers fit into the ends of plastic test tubes for safe, convenient storage.

PB-210 Needle Cloud Chamber Source Contains Pb-210 < 0.01 µCi Lead-210 Needle Source Emits both Alpha and Beta radiation for a variety of experiments. Long half-life of over 20 years.

PO-210 Needle Cloud Chamber Source Contains Polonium-210 (< 0.1 µCi, Po-210) Needle Source Emits strong Alpha radiation (particles) and produces thick condensation trails.

SR-90 Needle Cloud Chamber Source Contains (< 0.1 µCi, Sr-90) Needle Source Emits strong beta radiation.

*Shipping Prices are for ground shipments only. Call or email for all other services.

Radioactive Source Sets

Sample radioactive sources for testing the functionality of a Geiger counter. Safe, uncalibrated solid sealed sources are fabricated by depositing a license exempt quantity of activity in the well of a 1-inch diameter (25mm) by 1/8-inch thick (3mm) plastic disk. After drying, the well is filled with an epoxy material; sealing the radioactivity inside the source. Contains ±20% of the stated activity and are routinely compared to calibrated reference standards. Each disk is identified by radio nuclide, amount of activity, serial number and calibration date. The words "Caution - Radioactive Material" appear on the label of each source.

These radioactive sources are dropped shipped from separate location.

This set is used for determining the resolving time of GM Counters. It consists of three half discs, two of which contain 5 microcuries of Tl-204 plus a third half disc with no activity. The count-rate of each half disc plus the blank (to maintain constant geometry) is measured and then both active half discs are combined for a measurement with high count-rate. The counting loss may now be calculated by adding the rates from each half disc and comparing the result to the count-rate with both halves combined. S-6 - $240.00	The S-7 contains 1 each Po-210, Sr-90 and Co-60 emitting a range of alpha, beta and gamma radiation's. This set is ideal for demonstration and introductory nuclear labs covering basic characteristics of radiation. The Co-60 is 1.0 uCi and the Po-210 and Sr-90 are 0.1 uCi activity. S-7 - $220.00
Containing 1 each Cs-137, Co-60, Sr-90, Tl-204 and Po-210, the S-9 provides a wide of alpha, beta and gamma emissions making it a popular choice for nuclear science instruction The set contains two beta emitters, two beta/gamma emitters and one alpha source for in-depth studies of radiation. The Cs-137 is 5 uCi, the Po-210 and Sr-90 are 0.1 uCi activity and the Co-60 and Tl-204 are both 1 uCi. S-9 - $355.00	Designed for gamma spectroscopy, the S-10 contains eight different gamma emitting isotopes covering the entire energy range from 32 to 1333 keV. Also included in the set is a mixed source of Cs-137 and Zn-65 which students may use to identify an “unknown” isotope. The set consists of Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54. Na-22 and Cs/Zn. Source activities are all 1 uCi, except the Cs/Zn source, which is 0.5 uCi Cs and 1 uCi Zn. S-10 - $575.00

* All Radioisotope & Uranium Ore International orders are shipped via EMS. Except orders going to Canada, which are shipped FedEx Economy. Call or email for pricing. *Shipping Prices are for ground shipments only. Call or email for all other services.

Uranium Ore

Radioactive uranium ore sample.

Useful for testing Geiger Counters.
License exempt.
Uranium ore sample sizes vary.
Shipped in labeled metal container as shown.

Each radioactive ore sample is measured with A GCA-07W Digital Geiger Counter. Activity of alpha, beta and gamma in Counts Per Minute (CPM) is provided along with measurement certification. Ore samples typically have one area that is more radioactive than other areas. Measurement of radioactivity is taken from the most radioactive portion of the sample.

Shipping Information:

We are always in compliance with Section 13 from part 40 of the NRC Nuclear Regulatory Commission rules and regulations and Postal Service regulations specified in 49 CFR 173.421 for activity limits of low level radioactive materials. Item will be shipped in accordance with Postal Service activity limits specified in Publication 52.

Radioactive minerals are for educational and scientific use only.

Sale of uranium ore is in compliance with all U.S. Federal regulations (Part 40) and NY State Regulations (10 NYCRR Part 16 and 12 NYCRR Part 38) as defined under Appendix A exemptions.

Encased Uranium Ore Soil

License exempt - Check Source.
Size Approximately - 1.0" dia. x .125" (1/8") thick
Radioactivity levels vary from disc to disc.
Radioactive soil encased in polyester plastic as shown.

The encased uranium ore soil disc is radioactive and tested with a NRC certified GCA-07W Digital Geiger Counter. The radioactivity of the embedded uranium ore soil is reduce by being encase in plastic. The low level radioactivity is still perfect for using as a check source for geiger counters. The radioactivity level will vary from disc to disc. This is a non calibrated radioactive check source.

Shipping Information:

We are always in compliance with Section 13 from part 40 of the NRC Nuclear Regulatory Commission rules and regulations and Postal Service regulations specified in 49 CFR 173.421 for activity limits of low level radioactive materials. Item will be shipped in accordance with Postal Service activity limits specified in Publication 52.

Radioactive minerals are for educational and scientific use only.

Sale of uranium ore is in compliance with all U.S. Federal regulations (Part 40) and NY State Regulations (10 NYCRR Part 16 and 12 NYCRR Part 38) as defined under Appendix A exemptions.

Lead Shielded Disc Source Containers

LSD1
For 1-2 sources of >5 uCi, the LSD1 Lead Shield simplifies shipping problems and offers ultra-safe storage of sources. Now painted on both sides for safety. Consists of two pieces of 0.125" lead and weights about 8 oz.
LSD4 For 1-8 sources, the LSD4 simplifies both shipment, and storage of your disk sources. Painted on both sides for safety, an entire set of eight sources will fit inside the LSD4
















LSD5
With a wall thickness of 0.5", this LSD5 lead shield container is suitable for higher activity sources. Holds up to 20 1" discs. Outside Dimensions: 3.6" x 2.25", Interior Dimensions: 2.65" X 1.25", 0.5" thick, approximately 4.6 lbs weight, painted exterior.