Graham, I.J.; Ditchburn, R.G.; Shea, P-A.; Smart, D.; Whitehead, N.E. 2005 Validation of cosmogenic nuclide production rate scaling factors through direct measurement. Part 3, Field data and site parameters . Lower Hutt: Institute of Geological & Nuclear Sciences. Institute of Geological & Nuclear Sciences science report 2005/04 32 p.
Abstract: This is part three of a series of comprehensive reports detailing the results of the IPR Marsden-funded research project ‘Cosmogenic nuclides in earth science: validation of production systematics’, which set out to validate scaling factors used in determining production rates of cosmogenic nuclides used for surface exposure dating. The research was carried out in Australia, New Zealand and Antarctica, and had two aspects to it: (i) direct measurement of cosmic-ray flux using portable monitors, and (ii) measurement of 7Be and 10Be in sealed water targets. This report presents details of field experiments and measurements carried out between 1997 and 2001, during and after sun-spot cycle 23 solar minimum. Included are measurement times, weather conditions and relevant site parameters. A brief discussion of shielding and neutron scattering effects is also included. (auth)