Gamma Calibration Sources

Radionuclides are placed between 2 hot-sealed polyester foils approximately 125 μm thick each, then mounted in a plexiglass ring.
The radiological characteristics of the sources are measured with calibrated Nal scintillators or HPGe semi-conductors.
Available activity Levels: 0.11 uCi, 1.1 uCi, 11 uCi and 19 uCi
Available Radionuclides: Am-241, Ba-133, Co-57, Co-60, Cs-137, Eu-152, Na-22, Y-88

Kits Available

EGS A sources are also available in kits containing 9 sources of 0.11μCi (4kBq),1.1μCi (40kBq), 11μCi (400kBq), 19μCi (700kBq) : Am-241, Co-57, Co-60, Cr-51, Cs-137, Mn-54, Na-22, Sr-85, Y-88. Other activities are available on request.

View LEA Sources & Standards Catalog

Category: Calibration Sources & Radioactive Standards Tags: Calibration, Disc Source, Gamma, LEA, Point Source

To place an order or for questions and more information call 208.524.5300 or click the link below.

Orders/Information

Radionuclide	Activity	k=2 measurement uncertainty	Reference
²⁴¹Am	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 3.5% ----------------------- ≤ 3.5% ----------------------- ≤ 3.5% ----------------------- ≤ 3.5%	AM241 EGS [Type] 10 ----------------------- AM241 EGS [Type] 15 ----------------------- AM241 EGS [Type] 20 ----------------------- AM241 EGS [Type] 25
¹³³Ba	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2%	BA133 EGS [Type] 10 ----------------------- BA133 EGS [Type] 15 ----------------------- BA133 EGS [Type] 20 ----------------------- BA133 EGS [Type] 25
⁵⁷Co	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 2% ----------------------- ≤ 1.7% ----------------------- ≤ 1.7% ----------------------- ≤ 2.5%	CO57 EGS [Type] 10 ----------------------- CO57 EGS [Type] 15 ----------------------- CO57 EGS [Type] 20 ----------------------- CO57 EGS [Type] 25
⁶⁰Co	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 2% ----------------------- ≤ 1.5% ----------------------- ≤ 1.5% ----------------------- ≤ 1.5%	CO60 EGS [Type] 10 ----------------------- CO60 EGS [Type] 15 ----------------------- CO60 EGS [Type] 20 ----------------------- CO60 EGS [Type] 25
¹³⁷Cs	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 2.5% ----------------------- ≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2%	CS137 EGS [Type] 10 ----------------------- CS137 EGS [Type] 15 ----------------------- CS137 EGS [Type] 20 ----------------------- CS137 EGS [Type] 25
¹⁵²Eu	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 3% ----------------------- ≤ 3% ----------------------- ≤ 3% ----------------------- ≤ 3%	EU152 EGS [Type] 10 ----------------------- EU152 EGS [Type] 15 ----------------------- EU152 EGS [Type] 20 ----------------------- EU152 EGS [Type] 25
²²Na	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2%	NA22 EGS [Type] 10 ----------------------- NA22 EGS [Type] 15 ----------------------- NA22 EGS [Type] 20 ----------------------- NA22 EGS [Type] 25
⁸⁸Y	4 kBq • 0.11 μCi ----------------------- 40 kBq • 1.1 μCi ----------------------- 400 kBq • 11 μCi ----------------------- 700 kBq • 19 μCi	≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2% ----------------------- ≤ 2%	Y88 EGS [Type] 10 ----------------------- Y88 EGS [Type] 15 ----------------------- Y88 EGS [Type] 20 ----------------------- Y88 EGS [Type] 25
12ML01**	30 kBq • 0.8 μCi	[ 3% ; 6% ]	12ML01 EGS [Type] 15