Overview - point sources

The products shown on these pages are representative sources used for common applications.
If you cannot find the product with your specifications, please contact us using the corresponding email contact on this website.
In most cases we will be able provide you with a solution meeting your requirements.
You can also use our product request forms.

Please select from the categories below:

Back to overview - gamma sources

Rectangular type sources

Construction

The radioactive isotope is absorbed in an ion-exchange bead approximately 1mm in diameter. The bead is fixed inside a solid plastic capsule. The active bead is visible, and located at the geometric centre of the source. The engraving is color-coded.

ISO classification

ISO/12/C34343

Drawing: VZ-1240-001

Tolerance

The maximum deviation of the delivered activity from the nominal values is -10% to +30% for all radionuclides with the exception of Hg-203 which is -10% to +50%.

Absorption corrections

The effect of absorption and scattering in the source depends on the measurement geometry and the measurement equipment. The table below shows the transmission factor for the main gamma rays emitted. Transmission factors at other energies may be calculated by interpolation. The transmission factor is the fraction of gamma rays produced in the source that will emerge from its surface calculated for narrow beam emission normal to the plane of the source.

Energy [keV]

Radionuclide

Transmission factor

60

Am-241

0.970

88

Cd-109

0.981

122

Co-57

0.982

279

Hg-203

0.986

344

Eu-152

0.987

662

Cs-137

0.990

834

Mn-54

0.991

1173

Co-60

0.993

1836

Y-88

0.994

Ordering Information - Single radionuclides

Radionuclide

Activity [kBq]

Overall uncertainty [%]

Product code (DAkkS certificate)

Am-241

37

3

AMR1122

 

370

3

AMR1152

Ba-133

37

3

BDR1122

 

370

3

BDR1152

Cd-109

37

4

CUR1122

 

370

4

CUR1152

Cs-137

37

3

CDR1122

 

370

3

CDR1152

Co-57

37

3

CTR1122

 

370

3

CTR1152

Co-60

37

3

CKR1122

 

370

3

CKR1152

Eu-152

37

3

EFR1122

 

370

3

EFR1152

Hg-203

74

4

MBR1222

 

740

4

MBR1252

Mn-54

37

3

MFR1122

 

370

3

MFR1152

Na-22

37

3

SKR1122

 

370

3

SKR1152

Y-88

37

3

YER1122

 

370

3

YER1152

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Radionuclide sets

Each set of sources is supplied in a presentation box which also contains a pair of forceps, two positron absorbers, and an adaptor plate. For easy reference, a copy of the calibration information is shown in the lid of the box.

Ordering Information - Radionuclide Sets

Radionuclide

Activity [kBq]

Product code (DAkkS certificate)

Set 1, containing:

QCR3110 (total activity: 370 kBq)

Am-241

37

 

Ba-133

37

 

Cs-137

37

 

Co-57

37

 

Co-60

37

 

Hg-203

74

 

Mn-54

37

 

Na-22

37

 

Y-88

37

 

Set 2, containing:

QCR310 (total activity: 3.7 MBq)

Am-241

370

 

Ba-133

370

 

Cs-137

370

 

Co-57

370

 

Co-60

370

 

Hg-203

740

 

Mn-54

370

 

Na-22

370

 

Y-88

370

 

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Gamma Standards—Type C

The type C configuration can be used to check the performance of G.M. and NaI (Tl) detectors. The maximim activity of this source type is 370 kBq. Please enquire.

 

Overall Dimensions

Height

Width

Length

Active Diameter

0.075”

0.43”

0.925”

0.118”

1.91 mm

11 mm

23.5 mm

3 mm


Window & Active Deposit

Window

Nature of Active Deposit

Plastic

Evaporated Metallic Salts

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Disk type sources

 

Construction

With the exception of Ra-226, Am-241 and Pb-210sources,the radioactive isotope is absorbed in an ion-exchange bead approximately 1mm in diameter. The bead is fixed inside a solid plastic capsule 25mm in diameter and 3mm thick. The active bead is visible, and located at the geometric centre of the source.

For Am-241 and Pb-210, the active component is in the form of a ceramic bead. For Ra-226, a foil is sealed and fixed inside a 6 mm thick plastic disc. This construction reduces the possibility of release of radon gas from the decay of Ra-226.

Tolerances

The maximum deviation of the delivered activity from the nominal values is -10% to +30% for all radionuclides with the exception of Hg-203 (which is -10% to +50%) and Ra-226 (which is ±30%).

ISO classification

ISO/12/C34313

Drawing: VZ-477-001

Drawing: VZ-478-001 (Pb-210, Am-241)

Drawing: VZ-3293-001 (Ra-226)

Absorption corrections

The effect of absorption and scattering in the source depends on the measurement geometry and the measurement equipment. The table shows the transmission factor for the main gamma rays emitted. Transmission factors at other energies may be calculated by interpolation. The transmission factor is the fraction of gamma-rays produced in the source that will emerge from its surface calculated for narrow beam emission normal to the plane of the source.

Energy [keV]

Radionuclide

Transmission factor

47

Pb-210

0.964

60

Am-241

0.958

88

Cd-109

0.970

122

Co-57

0.973

279

Hg-203

0.979

344

Eu-152

0.979

356Ba-1330.984

662

Cs-137

0.985

834

Mn-54

0.987

1173

Co-60

0.988

1274Na-220.991

1836

Y-88

 0.991

Ordering Information - Single radionuclides

Radionuclide

Nominal activity [kBq]

Overall uncertainty [%]

Product code (DAkks certificate)

Am-241

37

3

AMR8122

 

370

3

AMR8152

Ba-133

37

3

BDR8122

 

370

3

BDR8152

 

3700

3

BDR8252

Cd-109

370

4

CUR8152

Cs-137

37

3

CDR8122

 

370

3

CDR8152

 

3700

3

CDR8252

Co-57

37

3

CTR8122

 

370

3

CTR8152

 

3700

3

CTR8252

Co-60

37

3

CKR8122

 

370

3

CKR8152

 

3700

3

CKR8252

Eu-152

37

3

EFR8122

 

370

3

EFR8152

Hg-203

74

4

MBR8222

 

740

4

MBR8252

Mn-54

37

3

MFR8122

 

370

3

MFR8152

Na-22

37

3

SKR8122

 

370

3

SKR8152

Pb-210

200

4

RBR8122

Ra-226

100

3

RARB94801)

Y-88

37

3

YER8122

 

370

3

YER8152

1) Drawing: VZ-590-001

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Radionuclide set

The set contains 8 sources of long-lived radionuclides for calibrating gamma ray spectrometers from 46keV to 1836keV.

The set of sources is supplied in a presentation box and includes a positron absorber. For easy reference, a copy of the calibration information is shown in the lid of the box.

Ordering information - Radionuclide set

Radionuclide

Activity [kBq]

Product code (DAkkS certificate)

Set comprising:

QCRB9481 (total activity: 452 kBq)

Am-241

37

 

Ba-133

37

 

Cs-137

37

 

Co-60

37

 

Eu-152

37

 

Na-22

37

 

Pb-210

200

 

Ra-226

30

 

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Gamma Standards—Type D

The type D configuration is mainly used for checking the performance of G.M. and NaI(Tl) detectors. The type D disk is a 1” (25.4 mm) diameter by 0.250” (6.35 mm) thick disk constructed of high strength plastic. The active diameter is 0.197” (5 mm).

 

Overall Diameter

Active Diameter

Height

1”

0.197”

0.25”

25.4 mm

5 mm

6.35 mm


Window & Active Deposit

Window

Nature of Active Deposit

Plastic

Evaporated Metallic Salts

 

 

<

Nuclide

Model no.

Activity range

Remark

Ag-110m

GF-110-D

&;3,7 kBq - 3,7 MBq

On Request

Am-241

GF-241-D

&3,7 kBq - 3,7 MBq

Ba-133

GF-133-D

 3,7 kBq - 3,7 MBq

Be-7

GF-007-D

 3,7 kBq - 3,7 MBq

 

 

Bi-207

GF-207-D

<p3,7 kbq="" -="" 3,7="" mbq<="" p=""></p3,7></p3,7>

Cd-109

GF-109-D

 3,7 kBq - 18,5 MBq

Ce-139

GF-139-D

 3,7 kBq - 3,7 MBq

 

 

Ce-141

GF-141-D

 3,7 kBq - 3,7 MBq

On Request

Co-56

GF-056-D

 3,7 kBq - 3,7 MBq

On Request

Co-57

GF-057-D

 3,7 kBq - 37 MBq

 

 

Co-58

GF-058-D

 3,7 kBq - 3,7 MBq

On Request

Co-60

GF-060-D

3,7 kBq - 18,5 MBq

Cr-51

GF-051-D

 3,7 kBq - 3,7 MBq

Cs-134

GF-134-D

 3,7 kBq - 3,7 MBq

 

 

Cs-137

GF-137-D

 3,7 kBq - 37 MBq

 

 

Eu-152

GF-152-D

 3,7 kBq - 3,7 MBq

 

 

Eu-154

GF-154-D

 3,7 kBq - 3,7 MBq

 

 

Eu-155

GF-155-D

 3,7 kBq - 3,7 MBq

 

 

Fe-59

GF-059-D

 3,7 kBq - 3,7 MBq

On Request

 

Gd-153

GF-153-D

 3,7 kBq - 18,5 MBq

 

 

Ge-68

GF-068-D

 3,7 kBq -20 MBq

 

 

Ho-166m

GF-166-D

 

 3,7 kBq - 370 kBq

 

 

 

I-125

GF-125-D

 3,7 kBq - 3,7 MBq

special nuclide, Please check availability.

 

I-129

GF-129-D

 3,7 kBq - 3,7 MBq

 

 

I-131 - Mock

GF-131SIM-D

 37 kBq - 370 kBq

Contains mixture of Ba-133/ Cs-137 (simulates I-131)

 

Hg-203

GF-203-D

 370 kBq - 3,7 MBq

 

 

Mn-54

GF-054-D

 3,7 kBq - 3,7 MBq

 

 

Na-22

GF-022-D

 3,7 kBq - 3,7 MBq

 

 

Ra-226

GF-226-D

 3,7 kBq - 370 kBq

 

 

Sb-124

GF-124-D

 3,7 kBq - 3,7 MBq

On Request

 

Sb-125

GF-125A-D

 3,7 kBq - 3,7 MBq

 

 

Sc-46

GF-046-D

 3,7 kBq - 3,7 MBq

On Request

 

Se-75

GF-075-D

 3,7 kBq - 3,7 MBq

 

 

Sn-113

GF-113-D

 3,7 kBq - 3,7 MBq

 

 

Sr-85

GF-085-D

 3,7 kBq - 3,7 MBq

 

 

Th-228

GF-228-D

 3,7 kBq - 370 kBq

 

 

U-235

GF-235-D

3,7 kBq

U-238 (Natural)

GF-238U-D

 3,7 kBq 

On Request

 

Y-88

GF-088-D

 3,7 kBq - 3,7 MBq

 

 

Zn-65

GF-065-D

 3,7 kBq - 3,7 MBq

 

 

Zr-95/Nb-95

GF-095-D

 3,7 kBq - 3,7 MBq

On Request

 

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Ordering Information - Source sets

Each set contains:

Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22

 

Model No.

Total activity

Product code

Remarks

GF-290-0.1D

25,9 kBq

GF-290-0,1D

7 sources each 3.7kBq

GF-290-1D

259 kBq

GF-290-1D

7 sources each 3.7kBq

GF-290-10D

25,9 MBq

GF-290-10D

7 sources each 3.7kBq

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Gamma Standards—Type M

 

The type M thin “scatterless” disk is used in applications involving high resolution solid state detectors. The activity is deposited on 9 mg/cm2 aluminumized Mylar (polyester) disk, and covered with 0.9 mg/cm2 Kapton (polymide). The source is supplied in a removable aluminum holder. In the holder the source has an overall diameter of 1” (25.4 mm) and a thickness of 0.125” (3.18 mm). Out of the holder the source is 0.937” (23.8 mm) in diameter with a thickness of approximately 0.030” (0.76 mm). The active diameter is 0.12” (3 mm).

 

Overall Diameter

Active Diameter

Height

1”

0.12”

0.125”

25.4 mm

3 mm

3.18 mm

Window

Nature of Active Deposit

0.010” (254 µm) Aluminized Mylar

Evaporated Metallic Salts

Exceptions

Fe-55: 0.00025" (0.0064 mm) Aluminized Mylar

Am-241: 0.001” (0.0254 mm) Aluminum and Platinum Foils

Nuclide

Product code

Activity range

Remarks

Ag-110m

GF-110-M

3,7 kBq - 3,7 MBq

On Request

Am-241

GF-241-M

3,7 kBq - 370 kBq

 

Ba-133

GF-133-M

3,7 kBq - 3,7 MBq

 

Be-7

GF-007-M

3,7 kBq - 3,7 MBq

 

Bi-207

GF-207-M

3,7 kBq - 3,7 MBq

 

Cd-109

GF-109-M

3,7 kBq - 3,7 MBq

 

Ce-139

GF-139-M

3,7 kBq - 3,7 MBq

 

Ce-141

GF-141-M

3,7 kBq - 3,7 MBq

On Request

Co-56

GF-056-M

3,7 kBq - 3,7 MBq

On Request

Co-57

GF-057-M

3,7 kBq - 3,7 MBq

 

Co-58

GF-058-M

3,7 kBq - 3,7 MBq

On Request

Co-60

GF-060-M

3,7 kBq - 3,7 MBq

 

Cr-51

GF-051-M

3,7 kBq - 3,7 MBq

On Request

Cs-134

GF-134-M

3,7 kBq - 3,7 MBq

On Request

Cs-137

GF-137-M

3,7 kBq - 3,7 MBq

 

Eu-152

GF-152-M

3,7 kBq - 3,7 MBq

 

Eu-154

GF-154-M

3,7 kBq - 3,7 MBq

 

Eu-155

GF-155-M

3,7 kBq - 3,7 MBq

 

Fe-55

GF-055-M

3,7 kBq - 3,7 MBq

 

Fe-59

GF-059-M

3,7 kBq - 3,7 MBq

On Request

Gd-153

GF-153-M

3,7 kBq - 3,7 MBq

 

Ge-68

GF-068-M

3,7 kBq - 3,7 MBq

 

Ho-166m

GF-166-M

3,7 kBq - 37 kBq

 

I-131 - Mock

GF-131SIM-M

37 kBq - 370 kBq

Contains mixture of Ba-133/ Cs-137 (simulates I-131)

Hg-203

GF-203-M

370 kBq - 3,7 MBq

 

Mn-54

GF-054-M

3,7 kBq - 3,7 MBq

 

Na-22

GF-022-M

3,7 kBq - 3,7 MBq

 

Sb-124

GF-124-M

3,7 kBq - 3,7 MBq

On Request

Sb-125

GF-125A-M

3,7 kBq - 3,7 MBq

 

Sc-46

GF-046-M

3,7 kBq - 3,7 MBq

On Request

Se-75

GF-075-M

3,7 kBq - 3,7 MBq

 

Sn-113

GF-113-M

3,7 kBq - 3,7 MBq

 

Sr-85

GF-085-M

3,7 kBq - 3,7 MBq

 

Y-88

GF-088-M

3,7 kBq - 3,7 MBq

 

Zn-65

GF-065-M

3,7 kBq - 3,7 MBq

 

Zr-95/Nb-95

GF-095-M

3,7 kBq - 3,7 MBq

On Request

 

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Ordering Information - Source sets

Each set consists of:

Ba-133, Cd-109, Co-57, Co-60, Cs-137, Mn-54 and Na-22

Model no.

Total activity

Product code

Remarks

GF-290-0.1M

25,9 kBq

GF-290-0,1M

7 sources each 3.7kBq

GF-290-1M

259 kBq

GF-290-1M

7 sources each 37kBq

GF-290-10M

2,59 MBq

GF-290-10M

7 sources each 370kBq

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Multinuclide Point Standards (GF-ML)

The GF-ML is available in the Type D or Type M configurations. See pages 46 and 48 for technical drawings. Both have a 1” (25.4 mm) outside diameter with nuclide deposited in the center of each disk. 10 μCi maximum activity for GF-ML-D, and 2 μCi maximum activity for GF-ML-M. Please contact customer service if greater activities are required.

Mixed radionuclide calibration sources for 60-1836 keV and 46-136 keV ranges

Application

The QCD1 source can be used for calibrating high resolution gamma-ray spectrometers where a solid source with minimal self-absorption is required. The energy range covered is 88-1836keV.

Certification

The source is supplied with a UKAS certificate of calibration.

Construction

The source is prepared by dispensing an accurately weighed aliquot of mixed radionuclide solution onto a polyester tape 0.06mm thick. The aliquot is dried in an atmosphere of hydrogen sulphide to prevent volatilization of mercury, and then covered with a second layer of tape. The active deposit is approximately 5 mm in diameter. The tape is attached to a 1mm thick aluminium annulus of inner diameter 38mm and outer diameter 54mm. The source is constructed of thin polyester tape to minimize self-absorption of the gamma-rays. The source should be handled carefully by its aluminium ring using rubber-tipped forceps.

Ordering Information

Radionuclides

Activity [kBq]

Gamma-ray energy [keV]

Overall uncertainty [%]

Product code (DAkkS certificate)

Radionuclide mixture NG3 containing:

QCRB1186 (total activity: 40 kBq)

Am-241

3

60

3

Cd-109

15.6

88

4

Co-57

0.6

122

2.5

Ce-139

0.7

166

2.5

Hg-203

2.1

279

2.5

Sn-113

2.8

392

5

Sr-85

3.8

514

2.5

Cs-137

2.6

662

2.5

Co-60

3.0

1173

1

1333

1

Y-88

5.9

898

4

1836

4

Radionuclide mixture NG4 containing:

QCRB4136 (total activity: 46 kBq)

Pb-210

20

47

5

Am-241

4

60

3

Cd-109

20

88

4

Co-57

2

122

2.5

Radionuclide mixture NG2 containing:

QCRB13892 (total activity: 37 kBq)

Cd-109

15.6

88

4

Co-57

0.6

122

2.5

Ce-139

0.8

166

2.5

Hg-203

2.2

279

2.5

Sn-113

2.8

392

5

Sr-85

3.6

514

2.5

Cs-137

2.6

662

2.5

Co-60

3

1173

1

1333

1

Y-88

5.8

898

4

1836

4

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Source for NaI spectrometers

Application

This source type is used for the energy calibration of NaI spectrometers, or as a check source for Ge-spectrometers.

Construction

The activity of each radionuclide is adsorbed in one ion exchange bead 1mm in diameter. The beads are mounted in a plastic disc 25mm in diameter and 3mm thick (drawing VZ-1285).

Ordering information

Radionuclide

Nominal activity [kBq]

Product code

Am-241

37

QCRB5936 (total activity: 148 kBq)



Co-57

37

Co-60

37

Cs-137

37

Na-22

3700

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USA / North and South America / Australia / China & Far East Asia

Eckert & Ziegler Analytics, Inc.
1380 Seaboard Industrial Blvd.
Atlanta, GA 30318 (USA)
Phone: +1 404 352 8677
Fax: +1 404 352 2837
E-Mail: isotrakusa@dont-want-spam.ezag.com

Europe / Africa / Middle East Asia / Japan

Eckert & Ziegler Nuclitec GmbH
Gieselweg 1
38110 Braunschweig, Germany
Phone: +49 5307 9320
Fax: +49 5307 932 272
E-Mail: infoisotrak@dont-want-spam.ezag.com


HOW TO FIND US

France

Eckert & Ziegler Isotope Products France
12 avenue des Tropiques
Hightec Sud - bâtiment B
91955 Courtaboeuf cedex
France
Phone: +33 (0)1 64 86 22 22
Fax: +33 (0)1 69 86 10 65
E-Mail: rudy.operon@dont-want-spam.ezag.com