CLAS Certificate Number 2016-05

Company name Canadian Nuclear Safety Commission
Company address 280 Slater Street
Ottawa, ON K1P 5S9

Laboratory Calibration activities are performed at:
3484 Limebank Road,
Ottawa, Ontario, K1V 1E1
Contact Dr. Aslam Ibrahim
Telephone: 613-327-5596
Fax: 613-998-3209
Email: aslam.ibrahim@cnsc-ccsn.gc.ca
Clients served
  • Internal clients
  • Federal and provincial organizations within Canada
  • IAEA and signatories for client services arranged via domestic arrangements including Memorandum of Understanding (MOU).
Fields of calibration
  • Ionizing radiation
Accreditation body
  • Standards Council of Canada (SCC)
ISO/IEC 17025
  • SCC file number: 151034
  • First issued 2016-11-16
  • Issue 7.0e 2024-05-21

This CLAS Certificate is published by the CLAS service of the National Research Council of Canada (NRC) in cooperation with the laboratory accreditation program of the accreditation body. The accreditation body recognizes the capability of the named laboratory for being able to perform calibrations as per the listed Calibration and Measurement Capabilities with metrological traceability to the International System of Units (SI) or to standards acceptable to CLAS. See supplementary notes.

Type II Capability

Ionizing radiation

Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
Reference gamma ray beam, Cs‑137
1.4 µSvh‑1 to 2.0 µSvh‑1 8.6 % Characterization of the reference radiation field. CNSC instruction I500.2.QCINSC and IAEA Safety Reports Series No.16: 2000, Section 3.4.2, Page 30; ANSI N323AB‑2013
>2.0 µSvh‑1 to 5.0 µSvh‑1 6.5 %
>5.0 µSvh‑1 to 10.0 µSvh‑1 2.6%
>10.0 µSvh‑1 to 20.0 µSvh‑1 2.3 %
>20.0 µSvh‑1 to 600.0 mSvh‑1 2.2 %
Reference ion chamber, Cs‑137
0.85 mGyh‑1 2.2 % Calibration of the Ion chamber with an electrometer. CNSC instruction I500.2.WORKSD; IAEA Technical Report Series No. 374, Section 9, Page 63.
>468 mGyh‑1 2.2 %
Electronic Personal Dosimeters, Cs‑137
150 µSv to 10 Sv 5.0 % Calibration of electronic personal dosimeters. CNSC instruction I500.2.DM2000 and IAEA Safety Report Series No. 16: 2000; ANSI N323AB‑2013
Field gamma survey instrument, Cs‑137
1.4 μSvh‑1 to 600 mSvh‑1 9.0 % Calibration of field gamma survey instruments. CNSC procedure P500 and IAEA Safety Report Series No. 16: 2000; ANSI N323AB‑2013

Radioactivity

Field contamination survey instrument
Active dimensions of wide area planar reference standard sources: 10 cm ×10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm

Efficiency calibration for isotopes Am-241, Cl-36, Co-60, Cs-137, Sr-90, Tc-99
Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
0.2 kBq to 5 kBq 20 % Calibration of field contamination survey instruments. CNSC procedure P500 & I500.2.CONTAM.

Radioisotope identification device (RIID),
Isotopes Am-241, Ba-133, Co-57, Co-60, Cs-137, Ra-226, Th-232

Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
Eγ ≤ 60 keV Check of energy calibration ≤ 7 % Energy calibration of RIID for identification of gamma emitting isotopes. CNSC procedure P500 & I500.2.RADIID.
Eγ > 60 keV Check of energy calibration ≤ 2 %

Planar Sodium Iodide counter – Reference standard
Energy calibration: Am-241, Ba-133, Co-57, Co-60, Cs-137, Ra-226
Efficiency calibration: Am-241, Co-60, Cs-137
Active dimensions of wide area planar sources: 10 cm ×10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm

Efficiency calibration
Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
0.2 kBq to 5 kBq 20 % Efficiency calibration of sodium iodide well counter with MCA for measurement of activity of planar sources. CNSC procedure P500 & I500.2.GAMMA.

Electrically cooled HPGe – Reference standard,
Energy Calibration: Am-241, Ba-133, Co-57, Co-60, Cs-137, Ra-226, Th-232
Efficiency Calibration: Am-241, Co-57, Co-60, Cs-137, I-129
Active dimensions of wide area planar sources: 10 cm ×10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm

Efficiency calibration
Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
0.2 kBq to 5 kBq 20 % Efficiency calibration of electrically cooled HPGe for measurement of activity of planar sources. CNSC procedure P500 & I500.2.GAMMA.

Dual channel alpha-beta Zinc Sulphide counter– Reference standard
Active dimensions of wide area planar sources: 10 cm ×10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm

EEfficiency calibration for isotopes Am-241, C-14, Cl-36, Co-60, Cs-137, I-129, Sr-90, Tc-99
Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
0.2 kBq to 5 kBq 9 % Efficiency calibration of dual channel alpha-beta ZnS counter for measurement of activity of planar sources. CNSC procedure P500 & I500.2.RADHEC.

Alpha-beta activity measurements of traceable planar calibration sources
Sources – Isotopes: Am-241, C-14, Cl-36, Co-57, Co-60, Cs-137, I-129, Sr-90, Tc-99
Active dimensions of wide area planar sources: 10 cm ×10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm

Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
Activity
0.2 kBq to 5 kBq		 Check activity of source within ± 10 % Measurement of activity of planar sources using dual channel alpha-beta counting system. CNSC procedure P500 & I500.2.RADHEC.

Gamma activity measurements of traceable planar calibration sources
Sources – Isotopes: Am-241, Co-60, Cs-137
Active dimensions of wide area planar sources: 10 cm ×10 cm, Ø 5.0 cm, Ø 4.9 cm, Ø 1.6 cm

Measured Quantity & Range or Instrument Expanded Measurement Uncertainty Remarks
Activity
0.2 kBq to 5 kBq		 Check activity of source within ± 20 % Measurement of activity of planar sources using large area planar NaI(Tl) gamma spectrometer. CNSC procedure P500 & I500.2.GAMMA.

From: National Research Council Canada

 
 
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