Radioactive Sources



Radioactive Sources

No NRC license required


All our radioactive isotopes are legal to purchase & 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 radioactivite 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.


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Radioactive Sources

Description Activity Half-Life Item# Price
Sodium-22
1uCi
2.6 years
NA-22-S
$79.95
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
Cobalt-57
1uCi
271 days
CO-57-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
122.1
Beta (+β) 19 keV
Description Activity Half-Life Item# Price
Barium-133
1uCi
10.5 years
BA-133-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
122.1
N/A
Description Activity Half-Life Item# Price
Manganese-54
1uCi
312 days
MN-54-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
834.8
N/A
Description Activity Half-Life Item# Price
Cesium-137
1uCi
30.1 years
CS-137-1
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
G: 32, 661.6
B: 511.6, 1173.2
Multiple Radiation Types:
(γ) & (β)
Description Activity Half-Life Item# Price
Cesium-137
5uCi
30.1 years
CS-137-5
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
G: 32, 661.6
B: 511.6, 1173.2
Multiple Radiation Types:
(γ) & (β)
Description Activity Half-Life Item# Price
Cesium-137
10uCi
30.1 years
CS-137-10
$125.00
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ) & Beta (β)
G: 32, 661.6
B: 511.6, 1173.2
Multiple Radiation Types:
(γ) & (β)
Description Activity Half-Life Item# Price
Cobalt-60
1uCi
5.27 years
CO-60-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
1173.2, 1332.5
Beta (β) 97 keV
Description Activity Half-Life Item# Price
Cadmium-109
1uCi
465 days
CD-109-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)
88.0
N/A
Description Activity Half-Life Item# Price
Polonium-210
0.1uCi
138 days
PO-210-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Alpha (α)
5304.5
N/A
Description Activity Half-Life Item# Price
Zinc-65
1uCi
244 days
ZN-65-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Gamma (γ)

511.0, 1115.5

Beta (β) 330 keV
Description Activity Half-Life Item# Price
Strontium-90
0.1uCi
28.5 years
SR-90-S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Beta (β)
546
N/A
Description Activity Half-Life Item# Price
Thallium-204
1uCi
3.78 years
TL-204S
$79.95
Primary Radiation Type
Energies KeV
Secondary Radiation Type(s)
Beta (β-)
763.4
N/A

These radioactive sources are dropped shipped from separate location licensed to distribute radioactive isotopes.


* 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/Spintharscope 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.


These radioactive sources are dropped shipped from separate location licensed to distribute radioactive isotopes.


Pb-210 - $64.95
Po-210 - $64.95
Sr-90    - $64.95

* 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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Radioactive Source Sets

Radioactive Sources

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 licensed to distribute radioactive isotopes.


S-7 - $234.95
Set of Radioactive Sources: Po-210, .1 uC (alpha); Sr-90, .1 uC (beta); Co-60, 1 uC (gamma)

* 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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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 regulationand that the surface has been wipe tested.


Certificate of Calibration: Certifies that the source has been calibrated, list intensity, emission and uncertainty.

NOTE: The following countries need prior approval from their local or national radiation control authorities to receive sources from Images Scientific Instruments per IATA regulation dated January 1, 2009 50th edition for shipping radioactive material internationally.
Bahrain
Belgium
China
Egypt
Fiji
Hong Kong
India
Macao
Malaysia
Saudi Arabia
Singpore
Sri Lanka
Ukraine
United Arab Emirates

Please call us to order your source certificate

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