NRSL was born with the responsibilities of establishing and maintaining the nation’s measurement standards on the area of ionizing radiation, ensuring the consistency between national and international measurement standards, and support the establishment of the national traceability system.
The ionizing radiation measurement standards established at the NRSL consist of photon, beta, neutron dosimetry and radionuclide activity. Their traceability to and consistency with international standards are ensured by entries of related comparison results into the key comparison database (KCDB)of the Bureau International des Poids et Mesures (BIPM). NRSL’s calibration and measurement capabilities tables (CMC tables) have been reviewed by regional metrological bodies and entered into the BIPM KCDB in 2006 and obtained CIPM-MRA Logo license in 2008.
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Comparison code(year of implementation) |
name |
status |
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APMP.RI(Ⅰ)-K1 (1999) |
60Co absorbed dose to water |
Piloted by NMIJ/Japan |
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APMP.RI(Ⅱ)-S2 166mHo(1999) |
166mHo reaction of ion chamber |
Approved for equivalence (2003) |
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APMP.RI(Ⅱ)-K2 166mHo(1999) |
166mHo specific activity |
Approved for equivalence (2003) |
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APMP.RI(Ⅱ)-K2 58Co(2000) |
58Co specific activity |
Approved for equivalence (2004) |
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APMP.RI(Ⅱ)-K2 88Y(2000) |
88Yspecific activity |
Approved for equivalence (2005) |
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CCRI(Ⅱ)-K3 18F(2001) |
18F specific activity |
Approved for equivalence (2008) |
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CCRI(II)-S1 (2002-2005) |
Reference of seaweed measurement |
Approved for equivalence (2012) |
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CCRI(II)-S3 (2002-2008) |
Reference of shellfish measurement |
Piloted by INER, Approved for equivalence (2008) |
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APMP.RI(Ⅰ)-K3(2003) |
100-250 kV X-ray air kerma |
Approved for equivalence (2012) |
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APMP.RI(Ⅱ)-S1 36Cl(2003) |
36ClParticle Emissivity |
Approved for equivalence (2005) |
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APMP.RI(Ⅱ)-K2 139Ce（2004） |
139Ce specific activity |
Approved for equivalence (2007) |
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APMP.RI(Ⅱ)-K2 134Cs（2005） |
134Cs specific activity |
Approved for equivalence (2008) |
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EUROMET.RI(I)-S3(2005) |
30-300 kV X-ray air kerma |
Approved for equivalence (2009) |
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APMP.RI(II)-K2 133Ba（2006） |
133Ba specific activity |
Approved for equivalence (2013) |
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APMP.RI(Ⅰ)-K1(2004-2006) |
60Co air kerma |
Approved for equivalence (2014) |
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APMP.RI(I)-K2.B(2007) |
10-50 kV X-ray air kerma |
Approved for equivalence (2014) |
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APMP.RI(II)-K2 131I（2009） |
131I specific activity |
Approved for equivalence (2014) |
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APMP.RI(I)-K2(2008-2010) |
10-50 kV X-ray air kerma |
Piloted by INER, draft A report |
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CCRI(II)-S7(2009) |
60Co uncertainty analysis of activity |
Piloted by OAP/Thailand, draft B report. |
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APMP.RI(I)-K4(2009-2011) |
60Co absorbed dose to water |
Approved for equivalence (2016). |
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APMP.RI(I)-S1 (2010-2011) |
60Co high-dose dosimetry using alanine dosimeters |
Approved for equivalence (2015) |
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APMP.RI(I)-K1.1 (2010-2011) |
60Co air kerma |
Approved for equivalence (2016) |
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APMP.RI(III)-S1(2011-2012) |
ambient dose equivalent of neutron |
Piloted by ARPANSA/Australia |
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APMP.RI(I)-S2(2011-2013) |
absorbed dose of beta |
Piloted by NMIJ/Japan, draft B report |
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APMP.RI(I)-S3(2012-2013) |
ISO4037 narrow spectrum of air kerma |
Piloted by NMIJ/Japan, draft B report. |
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APMP.RI(II)-S3.Cs-134.Cs-137 (2013-2014) |
activity measurement of Cs - 134 and Cs - 137 in brown rice |
Piloted by KPISS/Korea |
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APMP.RI(II)-K2.Fe-59 (2014) |
Activity of radionuclide Fe-59 |
Piloted by INER |
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APMP.RI(II)-K5 (2014-2015) |
Cs-137 comparsion of air-kerma |
Piloted by NMIJ/Japan |
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APMP.RI(I)-K3(2015) |
100-250 kV X-ray air kerma |
Piloted by PTB/Germany |
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APMP.RI(I)-K8(2016-2017) |
Ir-192 Remote After-Loading Brachytherapy source of reference air kerma |
Piloted by NMIJ/Japan |
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EURAMET.RI(I)-S16(2017-2019) |
Personal dose equivalent of beta |
Approved for equivalence (2003) |
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1991 Establish National Radiation Standard Laboratory. |
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1992 Establishment of the first phase of the "Establishment and maintenance of national standards for ionizing radiation". |
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1997 The second five-year plan was established to establishment and maintenance a national ionizing radiation standard program. |
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1998 Establish APMP / TCRI as the first chairman of Asia Pacific Metrology Organization. |
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2000 Become an APMP formal member. |
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2001 Laboratory was certified by TAF. The new laboratory (035 hall) opened. Host Asia-Pacific medium Energy X-ray International Comparisons. |
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2003 Become an associated member of CGPM and sign Mutual Recognition Arrangement MRA. |
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2004 Become an formal member of ICRM. |
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2005 radioactive nuclide activity measurement standard CMC table into the BIPM Appendix C database. TCRI dose standard and activity standard technical examiner. |
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2006 Dose and neutron measurement standards CMC table into the BIPM Appendix C database. |
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2008 Served as APMP / TCRI's fifth chairman (2008 ~ 2010). Obtained CIPM-MRA Logo license. Hosting Asia-Pacific medium Energy X-ray International Comparisons and it’s Results into BIPM KCDB. |
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2009 Hosted Asia-Pacific Co-60 Water Absorption Dose International Comparisons. |
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2011 Held a meeting of National Metrology Laboratory Development Strategy in the field of ionizing radiation. |
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2014 Organized the second medium energy X-ray air-kerma comparison of Asia-Pacific. |
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2015 Completed Ir-192 reference air-kerma primary standard. Completed graphite calorimeter system construction. |
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2017 Organized the first popular radiation education of national standard measurement. |