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Where is the corrected meter reading of the working standard under the identical conditions of measurement as those established for the measurement of air kerma rate, ''K<sub>a</sub>'', given by Eq. 1.
Where is the corrected meter reading of the working standard under the identical conditions of measurement as those established for the measurement of air kerma rate, ''K<sub>a</sub>'', given by Eq. 1.
'''<big>Recognition of CNSC La</big>'''__NOTOC__'''b'''__NOEDITSECTION__'''orat'''{{DISPLAYTITLE:<span style="position: absolute; clip: rect(1px 1px 1px 1px); clip: rect(1px, 1px, 1px, 1px);">{{FULLPAGENAME1}}</span>}}'''ory by IAEA/WHO as a Secondary Standard Dosimetry Laboratory'''
The accuracy of dosimetry for radiation therapy and radiation safety is vital. Accuracy of radiation dosimetry depends on the quality of calibration of the device used to quantify the radiation dose. Calibration of such an equipment can be performed in two types of laboratories: primary standard lab also which mostly are commonly called national meteorological institute in the country or at a secondary standard laboratory. A primary laboratory maintains the primary standard for measurement of ionizing radiation in SI units which is compared and calibrated with the standard maintained in BIPM whereas the secondary lab maintains the standard which is used to calibrate dosimeters and survey meters which is traceable one of the NIMs. In Canada, the NRC MSS maintains primary standards for ionizing radiation. CNSC lab has been maintaining the reference standards for ionizing radiation (air kerma and ambient dose equivalent for radiation protection) as an accredited lab since November 2016. CNSC laboratory has been recently recognized by IAEA/WHO as a secondary standard lab, which maintains the secondary standard for air kerma in SI units in Cs-137 field for radiation protection dosimetry and disseminates it through calibration of standards to use within the lab and for the standardization of Cs-137 field to calibrate gamma survey instruments and electronic personal dosimeters. The CNSC Laboratory, as a full member of the network, is committed to adhering to the network's charter and serving users of ionizing radiation across the country under its mandate in collaboration with National Research Council of Canada (Primary Standard Laboratory for ionizing radiation in Canada) and internationally through the IAEA SSDL program.