Check sources (not calibrated, nominal)

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.

General information

This section shows single or mixed radionuclide sources which have been developed to check the correct functioning of radiation measurement equipment such as surface contamination monitors, survey dosimeters and personal dosimeters. Stainless steel encapsulated sources are also available for instrument checking and oil well logging devices.If a modified source of this type is required, please send us your specification using the form at the end of this section.

Certification

Each source is supplied with a certificate which states the nominal activity and leakage test results.


Applications

All radiation detection instruments should be checked daily to ensure that they are working correctly. These daily checks are sometimes obligatory under national regulations. The sources in this section offer a cost-effective and convenient method to perform functionality checks on the following types of instrument:

  • Portable contamination monitors
  • Survey dosimeters

Note: These sources are not calibrated and can only be used for checking that the instrument is operating correctly and is stable.

ISO classification

The International Organization for Standardization has published a classification of sealed sources based on safety requirements of typical usage. The source types have been assessed to ISO2919 which is equivalent to ANSI N542-1977.

Useful working life

Regular improvements in source design mean that it would be good working practice to renew the sources every 10 years. Sources may be cleaned by wiping the surfaces with a lint free cloth with alcohol (detergents or abrasive compounds such as metal polish should not be used).

 


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Alpha-, beta-, gamma-check sources

Application

These sources emit alpha-, beta- and gamma-radiation for checking the operation of surface contamination monitors and survey dosimeters. The advantages are:

Cost effective

- one source type can be used for all monitors on site

Convenient

- saves specifying 3 or more sources

Compact

- saves carrying sets of sources


Construction

The source is constructed from 3 active components (drawing: VZ-1444-001). Am-241 is incorporated in the surface of an anodized aluminium foil, and mounted at the top of the source. A Sr-90 foil is constructed in the same way and mounted below the Am-241 foil. An ion-exchange resin bead impregnated with Cs-137 is glued into an inner capsule and mounted under the foils.
The casing is constructed from black anodized aluminium and the source is supplied in a lightweight storage case. A plastic cap is supplied to protect the surface of the source when not in use.

Ordering Information

Radionuclides

Nominal
activity [kBq]

Particle
emission rate

Product
code

Am-241

0.8

400 alphas/s

QCRB1282

Sr-90

0.5

150 betas/s

Cs-137

15

Gamma radiation

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Construction

The source is constructed from 3 active components (drawing: VZ-2263-001). Am-241 is incorporated in the surface of an anodized aluminium foil, and mounted at the top of the source. A Sr-90 foil is constructed in the same way and mounted below the Am-241 foil. An ion-exchange resin bead impregnated with Cs-137 is glued into an inner capsule and mounted under the foils.

The casing is constructed from aluminium. An aluminium cover screws in place over the source to protect the surface of the source when not in use.

Ordering Information

Radionuclides

Nominal
activity [kBq]

Particle
emission rate

Product
code

Am-241

0.14

70 alphas/s

QCRB5203


Sr-90

2

2200 betas/s

Cs-137

15

Gamma radiation

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Construction

The Cs-137 activity is incorporated into a ceramic pellet which is mounted in a brass capsule. The head of the capsule has a M8 thread, and a slot for a screwdriver so that the source can be mounted easily into a jig.

ISO classification

ISO/12/C33323

Drawing VZ-269-001

 
Ordering Information

Radionuclides

Nominal
activity [kBq]

Particle
emission rate

Product
code

Am-241

0.14

70 alphas/s

QCRB5203


Sr-90

2

2200 betas/s

Cs-137

15

Gamma radiation

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Construction

The Cs-137 activity is incorporated into an ion exchange resin bead which is enclosed in a stainless steel capsule sealed into an aluminium holder. The source is supplied with an aluminium shielded container.

ISO classification

ISO/12/C23312 Drawing: VZ-2297-001 and storage container VZ-2583-001


Ordering Information

Radionuclide

Nominal activity [kBq]

Product code

Cs-137

370

CDRB18308

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Low energy check sources

Application

These sources can be used to check the performance of surface contamination monitors designed for detecting low energy photon-emitting radionuclides such as I-129, Cr-51 etc..The photons emitted by Fe-55 are close in energy to the low energy threshold of these monitors, so a check using an Fe-55 source is a sensitive method to identify any faults with the equipment (eg., drifts in the high voltage applied to the detector).

Construction

The source consists of an ion exchange resin bead mounted in a solid plastic holder.

ISO classification

ISO/12/C34343

Drawing: VZ-1240-001

Ordering Information

Radionuclide

Nominal activity
[MBq]

Product code

Fe-55

1.85

IER15510

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Fe-55 test source and jig for Mini Instruments 44B probe

This source and jig are intended for daily performance checks on Mini Instruments 44B monitors. The jig positions the detector at an accurately reproducible distance from the source so that long term drifts in instrument response can be recorded.

Construction

The Fe-55 active deposit is heat-sealed between two plastic foils which are mounted on an aluminium backing plate. The source is then placed into a robust Teflon jig, with a protective rotating cover.

Ordering Information

Radionuclide

Description

Nominal activity
[kBq]

Product code

Fe-55

Source and jig to drawings
VZ-2044 and VZ-2012

70

IERB3621

Fe-55

Replacement source to
drawing VZ-2044

70

IERB3748

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Calibrated sources for oil well logging

Application

These calibrated sources have been designed for routine checking and calibration of radiation detection instrumentation eg.

• Gamma dosemeters
• Survey meters
• Radiation alarms
• Oil well logging devices

High pressure tested sources

Construction

The Cs-137 is fixed in a glass matrix and sealed by welding the glass between two stainless steel discs. This inner capsule is welded into an outer stainless steel capsule. The overall dimensions are 12.7mm diameter x 3.2mm.The active diameter is 5.8mm.
These sources meet the requirements for oil well logging sources and each source is pressure tested to 25,000psi.

ISO classification

C.66646

Drawing: VZ-2134

The IDNS model number is CDC.PLS.

Certification

Each source is supplied with a Eckert & Ziegler Nuclitec certificate of measurement.

Ordering Information

Radionuclide

Nominal activity

Product code

[kBq]

[nCi]

Cs-137

18,5

500

CDRB4399

Cs-137

30,0

810

CDRB5517

Cs-137

59,2

1600

CDRB4400

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Calibrated gamma point sources

The activity is in the form of a ceramic disc, fixed with a bronze spring and welded into a stainless steel capsule (drawing VZ-543). In case of drawing VZ-542 this capsule is mounted on a stainless steel disc. The overall dimensions of the capsule are 10mm diameter x 5mm. The dimensions of the stainless steel plate are 32mm diameter x 0.5mm.

ISO classification

ISO/12/C66543

Drawing: VZ-542-001

Certification

VZ-543-001

Each source is supplied with a Eckert & Ziegler Nuclitec certificate of measurement.

Both sources have a Sealed Source Device Registration: CA0406S118S, Source model no. PHI-XXX.

Ordering Information

Radionuclide

Drawing

Nominal activity
[kBq]

Product code

Am-241

VZ-542

1850

AMRK6140

Cs-137

VZ-542

1850

CDRK5800

Cs-137

VZ-542

33,3

CDRQ6986

Co-60

VZ-542

555

CKRK6141

Cs-137

VZ-543

37

CDRK4853

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Calibrated stainless steel encapsulated sources

Construction

Cs-137 in the form of a ceramic pellet is welded into a stainless steel capsule. The overall dimensions are 6mm diameter x 2mm thick.

ISO classification

C.65344

Drawing: VZ-2936-001

Certification

Each source is supplied with a Eckert & Ziegler Nuclitec certificate of measurement.

Ordering Information

Radionuclide

Nominal activity
[kBq]

Product code

Cs-137

37

CDRB3078

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Calibrated welded Cs-137 gamma point sources

Construction

Cs-137 in the form of a ceramic disc is welded into an inner stainless steel capsule. The inner capsule is mounted into an outer stainless steel capsule. The overall dimensions are 6mm diameter x 8mm.

ISO classification

C.64444

Drawing: VZ-130

The IDNS model number is CDC.P1.

Certification

Each source is supplied with a Eckert & Ziegler Nuclitec certificate of measurement.

Ordering Information

Radionuclide

Nominal activity
[kBq]

Product code

Cs-137

37

CDRB5947

Cs-137

370

CDRB5948

Cs-137

3700

CDRB5949

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Calibrated robust Cs-137 gamma point sources

Construction

Cs-137 in the form of a ceramic pellet is Certification welded into a stainless steel capsule.The overall dimensions are 4.5mm diameter x 6mm long.

ISO classification

C.66445

Drawing: VZ-1145

Certification

Each source is supplied with a Eckert & Ziegler Nuclitec certificate of measurement.

Ordering information

Radionuclide

Nominal activity
[kBq]

Product code

Cs-137

37

CDRB5952

Cs-137

370

CDRB5953

Cs-137

3700

CDRB5954

Calibrated robust Cs-137 point sources with thread

Construction

Cs-137 in the form of a ceramic disc is welded into an inner stainless steel capsule. The inner capsule is mounted into an outer stainless steel capsule which has an M4 thread on the top of the source. The overall dimensions are 6.4mm diameter x 17.6mm.

ISO classification

C.66646

Drawing: VZ-2733

The special form certificate number is D/0051/S.

Certification

Each source is supplied with a Eckert & Ziegler Nuclitec certificate of measurement.

Ordering information

Radionuclide

Nominal activity
[kBq]

Product code

Cs-137

37

CDRB5950

Cs-137

370

CDRB3542

Cs-137

3700

CDRB5951

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Form to request custom source

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