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

Particle
emission rate

Product
code

Am-241

800 Bq

400 alphas/s

QCRB1282

Sr-90

500 Bq

150 betas/s

Cs-137

15 kBq

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

Particle
emission rate

Product
code

Am-241

140 Bq

70 alphas/s

QCRB5203


Sr-90

2 kBq

2200 betas/s

Cs-137

15 kBq

Gamma radiation

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Construction

The Cs-137 activity is incorporated into a ceramic pellet which is mounted in a stainless steel 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-4059-001

Ordering Information

Radionuclides

Nominal
activity

Product
code

Cs-137

37 kBq

CDRB23323

Cs-137

370 kBq

CDRB23324

Cs-137

3,7 MBq

CDRB23325

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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

Product code

Cs-137

370 kBq

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

Product code

Fe-55

1,85 MBq

IER15510

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

Application

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

Product code

Fe-55

Source and jig to drawings
VZ-2044-001 and VZ-2012-001

70 kBq

IERB3621

Fe-55

Replacement source to
drawing VZ-2044-001

70 kBq

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

ISO/12/C66646

Drawing: VZ-2134-001

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

[Bq]

[Ci]

Cs-137

18,5 kBq

500 nCi

CDRB11243

Cs-137

30,0 kBq

810 nCi

CDRB5517

Cs-137

59,2 kBq

1600 nCi

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 and VZ-543-001

Certification

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-542-001

1,85 MBq

AMRK6140

Cs-137

VZ-542-001

1,85 MBq

CDRK5800

Cs-137

VZ-542-001

33,3 kBq

CDRQ6986

Co-60

VZ-542-001

555 kBq

CKRK6141

Cs-137

VZ-543-001

37 kBq

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

ISO/12/C11111

Drawing: VZ-2936-001

Certification

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

Ordering Information

Radionuclide

Nominal activity

Product code

Cs-137

37 kBq

CDRB3078

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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: isotrak.usa@dont-want-spam.ezag.com

Europe / Africa / Middle East Asia / Japan

Eckert & Ziegler

Nuclitec GmbH
Gieselweg 1
38110 Braunschweig

Germany
Phone: +49 5307 932 0
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 1 64 86 22 22
Fax:     +33 1 69 86 10 65
E-Mail: rudy.operon@dont-want-spam.ezag.com