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Disc Sources
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These sources are supplied as one inch plastic discs. With the
exception of the alpha source, the small quantity of radioactive
material is sealed in the plastic with epoxy to prevent leakage and
contamination. The transmission window is sufficiently thin to transmit
both beta and gamma emissions without undue absorption.
The 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.
Radioisotope sources are available individually or packaged as
sets of three, five, and eight in convenient
storage boxes. These items are uncalibrated and of nominal activity to
provide a safe, yet inexpensive supply of radioactive material for
educational and commercial use.
Individual sources for alpha, beta and gamma emissions are available
in the following isotopes.
|
Isotope |
Activity |
Half-life |
Emissions |
Energies (keV) |
|
Ba-133S1 |
1uCi. |
10.7 years |
Gamma |
81.0, 276.3, 303.7, 355.9, 383.7 |
|
C14S10 |
10uCi. |
5730 years |
Beta |
β156.5 |
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Cd109S1 |
1uCi. |
453 days |
Gamma |
88.0 |
|
Co57S1 |
1uCi. |
270 days |
Gamma |
122.1, 136.4 |
|
Co60S1 |
1uCi. |
5.27 years |
Gamma, Beta |
1173.2, 1332.5, β317.9 |
|
Cs137S.2 |
0.2uCi. |
30.1 years |
Gamma, Beta |
32, 661.6, β511.6, β1173.2 |
|
Cs137S.5 |
0.5uCi. |
30.1 years |
Gamma, Beta |
32, 661.6, β511.6, β1173.2 |
|
Cs137S1 |
1uCi. |
30.1 years |
Gamma, Beta |
32, 661.6, β511.6, β1173.2 |
|
Cs137S5 |
5uCi. |
30.1 years |
Gamma, Beta |
32, 661.6, β511.6, β1173.2 |
|
Cs/ZnS |
1uCi. |
Mixed |
"Unknown" |
32, 661.6, 1115.5 |
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Eu152S1 |
1uCi. |
13.5 Years |
Gamma, Beta |
Multiple energies |
|
Fe55S100 |
100uCi. |
2.73 years |
X-ray, Beta |
5.9, 6.5, β231.4 |
|
Mn54S1 |
1uCi. |
312 days |
Gamma, Beta |
834.8, β542.2 |
|
Na22S1 |
1uCi. |
2.6 years |
Gamma |
1274.5, 511 |
|
Po210S |
0.1uCi. |
138 days |
Alpha |
5407.5 |
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Sr90S |
0.1uCi. |
28.8 years |
Beta |
β546 |
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Tl204S1 |
1uCi. |
3.78 years |
Beta |
β763.7 |
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Zn65S1 |
1uCi. |
244 days |
Gamma, Beta |
1115.6, β236.34 β1351.9 |
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Disc Sets
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RSS-2
GM Resolving Time 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.
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RSS-3
The RSS-3
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. |
| RSS-5
Containing 1
each Cs-137, Co-60, Sr-90, Tl-204 and Po-210, the RSS-5 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. |
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RSS-8
Designed for
gamma spectroscopy, the RSS-8 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. |
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PO-210
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. |
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Lead Shield for Shipping and Storage
The shield is
used for shipping and storage of 1" diameter disc sources. Durable
paint eliminates lead exposure problems. Surface radiation is
greatly reduced eliminating the need for multiple boxes when
shipping numerous Exempt Quantity sources.
With a wall
thickness of 0.5'', this container is suitable for higher activity gamma
sources. Holds up to 14 discs. Outside Dimensions: h= 3.6 x 2.25", Interior
Dimensions: h= 2.65 X 1.25", 0.5" thick, approximately 4.6 lbs weight, painted
exterior. |
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Download Datasheet
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