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Abstract

The national primary standard of the PTB with its extrapolation chambers and associated equipment is described. The evaluation procedure including all the corrections of the measured values is discussed in detail. Measurement uncertainties are stated for beta sources of the radionuclides 90-Sr, 90-Y, 204-Tl and 347-Pm. An intercomparison with the NPL of beta ray sources of these radionuclides shows that the results agree within the uncertainties claimed.

Additional information

Authors: BOEHM J PHYSIKALISCH-TECHNISCHE BUNDESANSTALT, BRAUNSCHWEIG (GERMANY), PHYSIKALISCH-TECHNISCHE BUNDESANSTALT, BRAUNSCHWEIG (GERMANY)
Bibliographic Reference: WRITE TO PHYSIKALISCH-TECHNISCHE BUNDESANSTALT, BUNDESALLEE 100, 3300 BRAUNSCHWEIG (GERMANY), MENTIONING REPORT PTB-DOS-13, 1986
Record Number: 1989124126600 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en