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Neutron probe : calibration curves for all textures?

Cliff Hignett writes

Question for Rick Allen

Our experience with a wide range of neutron moisture meters was that most of
the machine variation and moderate variation in access tube geometry could
be accounted for by expressing the counts as a fraction of the counts in a
container of water with the same access tube size and type.  (with some non
linearity between metal and plastic tubes) .  Did the 'shoot out' canvass
this possibility?

Cliff Hignett CPSS CPAg
CSIRO Land and Water
PMB 2 Glen Osmond 
South Australia 5064

ph (08)8303 8459
fx (08) 8303 8551
ah(08) 8276 7706
email cliff.hignett@adl.clw.csiro.au