Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the GUM, Poland and the BIPM in low-energy x-rays

D T Burns, P Roger, A B Knyziak
2011 Metrologia  
A key comparison has been made between the air-kerma standards of the GUM and the BIPM in the low-energy x-ray range. The results show the standards to be in agreement to better than the expanded uncertainty (k = 2) for the comparison of 6.0 parts in 10 3 . The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database.
doi:10.1088/0026-1394/49/1a/06002 fatcat:gmb6e6zeorf5ffh3xexa2ca34m