Radioactive isotopes are drop-shipped from a different location and can not be returned or refunded.
Shopping cart may not calculate shipping cost for radioactive isotopes correctly. If so, you will be contacted and charged additional shipping costs before order is processed.
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.
You may require a license and/or an import permit to clear customs; we strongly recommend that you find out if one is necessary. Returns are not accepted on any radioactive sources and no refunds are given. Orders shipping to Canada must be shipped by FedEx only.
All orders for radioactive materials will be confirmed by a secondary email within 3 business days.
Radioactive Sources
* Certain Radioactive isotopes require the purchase of an LSD shield *
United States (domestic) customers must order from:
Domestic Radioactive Sources Page
Countries requiring prior approval
- The following countries require prior approval from the proper agency within their country to receive Radioactive Material from outside the country. Please contact your country's agency and supply Images Scientific Instruments with authorization prior to placing your order. If you need information about your agency it is listed in the ICAO/IATA regulations, section 2.8.2 or contact Images Scientific Instruments and we will forward the information to you.
Australia | Egypt | Malaysia |
Bahrain | Fiji | Oman |
Belgium | France | Saudi Arabia |
Brazil | Hong Kong | Singapore |
Canada, values greater than IAEA | India | Sri Lanka |
exempt quantity limits | Iran | Ukraine |
China | Kyrgyz | United Arab Emirates |
Croatia | Macao (China) |
- International regulations control the isotope and activity that can be exported and shipped internationally.
Below is a list of Images Scientific Instruments standard Sources and Activities. These Sources and Activities can be exported and shipped internationally. |
Below is a list of isotopes and the maximum activity that can be shipped internationally. Please be aware of your country's regulations before placing your order. If your country permits users to receive higher activity sources, you must notify us at time of order. |
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All international orders must include an appropriate Lead Shielded Disc Container.
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Barium-133
|
Gamma (γ)
|
10.7 years
|
1 uCi
|
BA-133-1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
5 uCi
|
BA-133-5
|
$155.75
|
|
N/A
|
81.0, 276.3, 303.7, 355.9, 383.7
|
10 uCi
|
BA-133-10
|
$238.00
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Cesium-137
|
Gamma (γ) & Beta (β)
|
30.1 years
|
0.25 uCi
|
CS-137-0.25
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
||||
Multiple Radiation Types:
(γ) & (β)
|
γ: 32, 661.6
β: 511.6, 1173.2 |
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Cadmium-109
|
Gamma (γ)
|
465 days
|
1 uCi
|
CD-109-1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
5 uCi
|
CD-109-5
|
$155.75
|
|
N/A
|
88
|
10 uCi
|
CD-109-10
|
$238.00
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Cobalt-57
|
Gamma (γ)
|
271 days
|
1 uCi
|
CO-57-1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
5 uCi
|
CO-57-5
|
$155.75
|
|
Beta (+β) 19 keV
|
122.1, 136.4
|
10 uCi
|
CO-57-10
|
$238.00
|
|
25 uCi |
CO-57-25 |
$313.25 |
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Cobalt-60
|
Gamma (γ)
|
5.27 years
|
1 uCi
|
CO-60-1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
||||
Beta (β) 317.9
|
γ: 1173.2, 1332.5
β: 317.9 |
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Europium-152
|
Gamma (γ) & Beta (β)
|
13.516 years
|
1 uCi
|
EU-152-1
|
$155.75
|
Secondary Radiation Type
|
Energies KeV
|
||||
N/A
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Sodium-22
|
Gamma (γ)
|
2.6 years
|
1 uCi
|
NA-22-1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
5 uCi
|
NA-22-5
|
$155.75
|
|
Beta (+β) 546 keV
|
511.0, 1274.5
|
10 uCi
|
NA-22-10
|
$238.00
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Polonium-210
|
Alpha (α)
|
138 days
|
0.05 uCi
|
PO-210-0.05
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
0.1 uCi
|
PO-210-0.1
|
$86.95
|
|
N/A
|
5304.5
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Tin-113
|
Beta (β)
|
115 days
|
1 uCi
|
SN-113-1
|
$297.50
|
Secondary Radiation Type
|
Energies KeV
|
||||
Gamma (γ)
|
644, 31
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Strontium-90
|
Beta (β)
|
28.5 years
|
0.1 uCi
|
SR-90-0.1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
||||
N/A
|
546
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Thallium-204
|
Beta (β-)
|
3.78 years
|
0.25 uCi
|
TL-204-0.25
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
||||
N/A
|
763.7
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Zinc-65
|
Gamma (γ) & Beta (β)
|
244 days
|
1 uCi
|
ZN-65-1
|
$86.95
|
Secondary Radiation Type
|
Energies KeV
|
||||
Beta (β)
|
γ: 1115.6
β: 236.34, 1351.9 |
Laminated Mylar Window Sources

Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Carbon-14
|
Beta (β)
|
5730 years
|
1 uCi
|
LMW-C14-1
|
$125.80
|
Secondary Radiation Type
|
Energies KeV
|
10 uCi
|
LMW-C14-10
|
$283.05
|
|
N/A
|
β156.5
|
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Iron-55
|
X-Ray & K-Beta (β)
|
2.73 years
|
10
|
LMW-FE-55-10
|
$283.05
|
Secondary Radiation Type
|
Energies KeV
|
25 uCi
|
LMW-FE-55-25
|
$362.60
|
|
N/A
|
X-ray: 5.9, 6.5
β: 231.4 |
50 uCi
|
LMW-FE-55-50
|
$440.30
|
|
100 uCi |
LMW-FE-55-100 |
$597.55 |
Description |
Primary Radiation Type |
Half-Life |
Activity |
Item# |
Price |
---|---|---|---|---|---|
Polonium-210
|
Alpha (α)
|
138 days
|
0.1 uCi
|
LMW-PO-210-0.1
|
$125.80
|
Secondary Radiation Type
|
Energies KeV
|
||||
N/A
|
5304.5
|
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
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
* Permit required or 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.
PO-210-250 - $129.95
Polonium 210 250 u Ci Source
PO-210-500 - $195.95
Polonium 210 500 uCi Source
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.
*Some source set changes are made dependent on whether you live in an EU or UN Country*
* 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.
This set is used for determining the resolving time of GM Counters. It consists of three half discs, two of which contain 0.25 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 EU- $313.25

The S-7-UN contains 3 sources emitting a range of alpha, beta and gamma radiation. This set is ideal for demonstration and introductory nuclear labs covering basic characteristics of radiation.
Includes
(1) Co-60, 0.5 μCi (18.5 kBq)
(1) Sr-90, 0.1 μCi (3.7 kBq)
(1) Po-210, 0.1 μCi (3.7 kBq)
S-7 UN- $245.00

The S-9-EU provides a wide range 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.
Includes
(1) Po-210 0.1uCi (3.7 kBq)
-
(1) Sr-90 0.1uCi (3.7 kBq)
-
(1) Co-60 1uCi (37 kBq)
-
(1) Tl-204 .25 uCi (9.25 kBq)
-
(1) Cs-137 .25 uCi (9.25 kBq)
S-9 EU- $483.00

Designed for gamma spectroscopy, the S-10-EU contains eight different gamma emitting isotopes covering the entire energy range from 32 to 1333 keV.
Includes
(1) Ba-133 1uCi (37 kBq)
(1) Cd-109 1uCi (37 kBq)
(1) Co-57 1uCi (37 kBq)
(1) Co-60 1uCi (37 kBq)
-
(1) Cs-137 .25uCi (9.25 kBq)
(1) Eu-152, 0.5 μCi (18.5 kBq)
(1) Na-22 1uCi (37 kBq)
Zn-65, 1 μCi (37 kBq)
S-10 EU- $654.50

Designed for gamma spectroscopy, the S-10-UN contains eight different gamma emitting isotopes covering the entire energy range from 32 to 1333 keV.
Includes
(1) Ba-133 1uCi (37 kBq)
(1) Cd-109 1uCi (37 kBq)
(1) Co-57 1uCi (37 kBq)
(1) Co-60 1uCi (37 kBq)
-
(1) Cs-137 .1uCi (3.7 kBq)
(1) Eu-152, 0.5 μCi (18.5 kBq)
(1) Na-22 1uCi (37 kBq)
Zn-65, 1 μCi (37 kBq)
S-10 UN- $654.50
Lead Shielded Disc Source Containers
More Radioactive Source Containers HERE
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.
LSD1 - $56.00
Lead Shielded Disc Container (Capacity 1 disc)
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
LSD4 - $70.00
Lead Shielded Disc Container (Capacity 8 discs)
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.
LSD5 - $91.00
Lead Shielded Disc Container (Capacity 20 discs)
Lead Pig (Refurbished)

Plastic shelled lead storage containers for radioactive material,
known in the industry as 'Pigs', The internal container is a solid cast
lead container fabricated for nuclear material containment. Safely store
your uranium ore, radioactive Isotopes, and other radioactive samples.
The plastic shell protects you from physically touching lead, which
is a toxic metal. Click on "More Pictures" below to see open
view of container.
Our Pig includes a laminated label that you can record the contents.
Lead Shielding Guide
More Pictures
Outer Dimensions (approximate)
2.25"(diameter) x 3.5"(height)
Inner Dimensions (approximate)
1.1"(inside diameter) x 2.4"(inside depth)
Weight (approximate): 2 lbs.-1 oz.
Lead Thickness (approximate): 0.25"
Lead Pig