NUCLEAR ISOTOPES

All isotopes are fabricated to order and shipped directly to you from the
NRC licensed nuclear isotope manufacturer in Oak Ridge, TN.

We do not accept international orders of radioactive material

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Disc sources are supplied in a standard size of  1"  x  1/8" inch plastic disc

The quantity of radioactive material is safely sealed in the plastic disc

 with epoxy to prevent leakage and contamination.

ALPHA DISC SOURCE

This alpha source is of open window construction with the source material bonded to the surface of a silver foil mounted in the recess of the plastic disc. This design yields excellent emission of alpha particles without window losses.

 Due its relatively short half-life, the Po-210 alpha source must be replaced on a regular basis. Currently this is the only alpha emitting byproduct material available as a NRC Exempt Quantity which may be held without a radioactive material license.

Polonium-210 Alpha Disc
Item Number: PO-210D
Price: $60.00

ONE INCH

Beta & Gamma

DISC SOURCES

Disc sources are supplied in a standard size of  1"  x  1/8" inch plastic disc

Isotope	Activity	Half-life	Emissions	Energies (keV)	Price
Barium-133	1uCi.	10.7 years	Gamma	81.0, 276.3, 303.7, 355.9, 383.7	$65.00
Cadmium-109	1uCi.	453 days	Gamma	88.0	$65.00
Cobalt-57	1uCi.	270 days	Gamma	122.1, 136.4	$65.00
Cobalt-60	1uCi.	5.27 years	Gamma, Beta	1173.2, 1332.5, β317.9	$65.00
Cesium-137	0.2uCi.	30.1 years	Gamma, Beta	32, 661.6, β511.6, β1173.2	$65.00
Cesium-137	0.5uCi.	30.1 years	Gamma, Beta	32, 661.6, β511.6, β1173.2	$65.00
Cesium-137	1uCi.	30.1 years	Gamma, Beta	32, 661.6, β511.6, β1173.2	$65.00
Cesium-137	5uCi.	30.1 years	Gamma, Beta	32, 661.6, β511.6, β1173.2	$75.00
Cesium-137	8uCi.	30.1 years	Gamma, Beta	32, 661.6, β511.6, β1173.2	$80.00
Cesium-137	10uCi.	30.1 years	Gamma, Beta	32, 661.6, β511.6, β1173.2	$100.00
Cesium/Zinc	1uCi.	Mixed	"Unknown"	32, 661.6, 1115.5	$65.00
Europium-152	1uCi.	13.5 years	Gamma	121.8, 344.3, 1408.0	$105.00
Manganese-54	1uCi.	312 days	Gamma, Beta	834.8, β542.2	$65.00
Sodium-22	1uCi.	2.6 years	Gamma	1274.5, 511	$65.00
Strontium-90	0.1uCi.	28.8 years	Beta	β546	$65.00
Thallium-204	1uCi.	3.78 years	Beta	β763.7	$65.00
Zinc-65	1uCi.	244 days	Gamma, Beta	1115.6, β236.34 β1351.9	$65.00

Plastic Laminate

Beta & Gamma

DISC SOURCES

1.75" plastic laminates with thin transmission window

Isotope	Activity	Half-life	Emissions	Energies (keV)	Price
Carbon-14	10uCi.	5730 years	Beta	β156.5	$90.00
Iron-55	10uCi.	2.73 years	X-ray, Beta	5.9, 6.5, β231.4	$125.00
Iron-55	100uCi.	2.73 years	X-ray, Beta	5.9, 6.5, β231.4	$135.00

Needle Sources

Needle sources are used to generate a point source of radiation inside cloud chambers for demonstrating alpha and beta radiation tracks. Three different types of isotopes are offered, a pure alpha emitter, a pure beta emitter and a combined alpha /beta emitter.

The sources are constructed by depositing a small, license exempt quantity of radioactive isotope onto the eye of a standard sewing needle which is mounted on a test tube stopper for insertion into the could chamber. The needle and stopper are placed into test tube for protection during shipping and storage.

Alpha Emitter

Polonium-210

Activity:  0.01 uCi (microcuries)

Half-Life: 138 days

This alpha emitter

Item UNPo210

Alpha & Beta Emitter

Lead -210

     Activity:  0.01 uCi (microcuries)

Half-Life: 20.4 years

This needle source offers both alpha and beta emissions,

 an ideal choice for multiple radiations and long life

Item UNPb210

Beta Emitter

Strontium-90

   Activity:  0.01 uCi (microcuries)

Half-Life: 28.05 years

This is a very good source of strong Beta emissions, with a long half-life

Item UNSR90

Tube & Rod Sources

We now offer a selection of exempt quantity gamma sources encapsulated in standard size test tubes or rods for use with well type radiation detectors.

These sources are uncalibrated and of nominal activity

The isotope is deposited as a point source in the bottom of the tube or rod, then sealed with epoxy.

Tube Size  :  12 x75mm.

Isotope	Activity	Half-Life	Energies	RODS#	TUBES#
Barium-133	0.1uCi.	10.7 years	81.0, 276.3, 303.7, 355.9, 383.7	Rod Source $100.00	Tube Source $100.00
Cadmium-109	0.1uCi.	453 days	88.0	Rod Source $100.00	Tube Source $100.00
Cobalt-57	0.1uCi.	270 days	122.1, 136.4	Rod Source $100.00	Tube Source $100.00
Cobalt-60	0.1uCi.	5.27 years	1173.2, 1332.5	Rod Source $100.00	Tube Source $100.00
Cesium-137	0.1uCi.	30.1 years	32, 661.6	Rod Source $100.00	Tube Source $100.00
Manganese-54	0.1uCi.	312 days	834.8	Rod Source $100.00	Tube Source $100.00
Sodium-22	0.1uCi.	2.6 years	1274.5	Rod Source $100.00	Tube Source $100.00
Zinc-65	0.1uCi.	244 days	1115.6	Rod Source $100.00	Tube Source $100.00

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