@article{JRC37586, address = {Bristol (United Kingdom)}, year = {2007}, author = {Pomme S}, abstract = {A succint overview is presented of primary standardisation methods for activity. They have been subdivided in high-geometry (4pi or 2pi) methods; defined-solid-angle counting methods and coincidence counting methods. References are provided of work explaining the basics of the methods, as well as papers describing recent developments and applications. }, title = {Methods for Primary Standardisation of Activity}, type = {}, url = {}, volume = {44}, number = {}, journal = {METROLOGIA}, pages = {S17-S26}, issn = {}, publisher = {IOP PUBLISHING LTD}, doi = {} }