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Radioactive Sources (Domestic USA)





On this page:

Radioactive Isotope Sources         Source Certificates
Alpha Particle Sources         Cloud Chamber / Needle Sources
Radioactive Isotope Source Sets         Uranium Ore


Radioactive isotopes are drop-shipped from a different location and can not be returned or refunded.


Note: For Domestic and international source orders - Activities of gamma emmitters over 5 to 10 μCi MAY require lead shielding, either LSD1, LSD4, or LSD5. If required, the lead shield and appropriate price will be added to your order.





Radioactive Sources

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


Description Activity Half-Life Item# Price
Barium-133
1, 5 & 10uCi
10.7 years
BA-133-X
$79.95 - $125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
81.0, 276.3, 303.7, 355.9, 383.7
N/A
Description Activity Half-Life Item# Price
Cesium-137
0.25, 0.5, 1, 5 & 10uCi
30.1 years
CS-137-X
$79.95 - $125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
γ: 32, 661.6
β: 511.6, 1173.2
Multiple Radiation Types:
(γ) & (β)
Description Activity Half-Life Item# Price
Cadmium-109
1, 5 & 10uCi
465 days
CD-109-S-X
$79.95 - $125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
88.0
N/A
Description Activity Half-Life Item# Price
Cobalt-57
1, 5, 10, 25, 50 & 100uCi
271 days
CO-57-X
$79.95 - $350.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
122.1, 136.4
Beta (+β) 19 keV
Description Activity Half-Life Item# Price
Cobalt-60
1uCi
5.27 years
CO-60-1
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
γ: 1173.2, 1332.5
β: 317.9
Beta (β) 317.9
Description Activity Half-Life Item# Price
Europium 152
1uCi
13.516 years
Eu-152-1
$125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
N/A
Description Activity Half-Life Item# Price
Manganese-54
1, 5 & 10uCi
312 days
MN-54-X
$79.95 - $125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
γ: 834.8
β: 542.2
Beta (β) 542.2
Description Activity Half-Life Item# Price
Sodium-22
1, 5, & 10uCi
2.6 years
NA-22-X
$79.95 - $125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
511.0, 1274.5
Beta (+β) 546 keV
Description Activity Half-Life Item# Price
Polonium-210
0.05, 0.1 & 1uCi
138 days
PO-210-X
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Alpha (α)
5304.5
N/A
Description Activity Half-Life Item# Price
Tin-113
1uCi
115 days
SN-113-1
$240.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Beta (β)
14.38
Gamma (γ)
Description Activity Half-Life Item# Price
Strontium-90
0.1uCi
28.5 years
SR-90-0.1
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Beta (β)
546
N/A
Description Activity Half-Life Item# Price
Thallium-204
1, 5, &10uCi
3.78 years
TL-204-X
$79.95 - $125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Beta (β-)
763.7
N/A
Description Activity Half-Life Item# Price
Zinc-65
1uCi
244 days
ZN-65-1
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
γ: 1115.6
β: 236.34, 1351.9
Beta (β)

Radioactive isotopes are drop-shipped from a different location & can not be returned or refunded.

All isotope orders totaling greater than 10uCi must include an appropriate Lead Shielded Disc Container.


International customers must order from:

International Radioactive Sources Page



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

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Laminated Mylar Window Sources

 Laminated Mylar Window Sources

Description Activity Half-Life Item# Price
Carbon-14
1 & 10 uCi
5730 years
LMW-C14-X
$165.00 - $185.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Beta (β)
β156.5
Description Activity Half-Life Item# Price
Iron-55
10, 25, 50 & 100 uCi
2.73 years
LMW-FE-55-X
$125.00 - $250.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
X-Ray & Beta (β)
X-ray: 5.9, 6.5
β: 231.4
N/A
Description Activity Half-Life Item# Price
Polonium-210
0.1 uCi
138 days
LMW-PO-210-0.1
$85.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Alpha (α)
5304.5
N/A


Radioactive isotopes are drop-shipped from a different location & can not be returned or refunded.

All isotope orders totaling greater than 10uCi must include an appropriate Lead Shielded Disc Container.


International customers must order from:

International Radioactive Sources Page

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.

SC-O - $55.00 

Source Certificate of Origin 


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.

SC-Compliance - $25.00 

Source Certificate of Compliance 


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

SC-Calibration - $157.00 

Source Certificate of Calibration 


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Alpha Particle Radioactive Source


Description Activity Half-Life Item# Price
Polonium-210
250 uCi
138 days
PO-210-250
$101.50
500 uCi
138 days
PO-210-500
$146.50
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Alpha (a)
5304.5
N/A

Polonium 210 250 uCi bottom Polonium 210 500 uCi bottom
250 uCi Alpha Source 500 uCi Alpha Source

Alpha Particle Source Information

PO-210-250 - $101.50 

Polonium 210 250 u Ci Source 


PO-210-500 - $146.50 

Polonium 210 500 uCi Source 

* Not available for export
* All Radioisotope & Uranium Ore orders are shipped via EMS. Except orders going to Canada, which are shipped FedEx Economy. Call or email for pricing.

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Cloud Chamber/Spinthariscope Needle Sources


Cloud Chamber 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.


NS-PB-210 - $64.95 


NS-PO-210 - $64.95 


NS-SR-90 - $64.95 


* 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.

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Radioactive Source Sets


S-7 Source Set

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.


S-6 Source Set S-7 Source Set
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 - $130.00 
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 - $185.00 
S-9 Source Set S-10 Source Set
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 - $300.00 
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 - $475.00 

* 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.

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Uranium Ore


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.


UR-01 - $39.95 

Uranium Ore (500 cpm - 1,000 cpm) 

UR-02 - $74.95 

Uranium Ore (1,000 cpm - 2,000 cpm) 

UR-03 - $120.95 

Uranium Ore (above 3,000 cpm) 

UR-04 - $150.95 

Uranium Ore (above 10,000 cpm) 

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Uranium Ore Paperweight

Encased Uranium Ore Soil


License exempt - Check Source.
Size Approximately - 1.5" 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.


UR-21 - $39.95

Encased Uranium Ore Soil

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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.
Lead Disc Source Container - 1 disc capacity 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

Lead Disc Source Container - 8 disc capacity

Lead Disc Source Container - 20 disc capacity












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.

LSD1 - $24.00

Lead Shielded Disc Container (Capacity 1 disc) 

LSD4 - $30.00

Lead Shielded Disc Container (Capacity 8 discs) 

LSD5 - $48.00 

Lead Shielded Disc Container (Capacity 20 discs) 

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