  A complete global balance for carbon in JET requires knowledge of the net
erosion in the main chamber, net deposition in the divertor and the amount of
dust and flakes collecting in the divertor region. This paper describes a
number of measurements on aspects of this global picture. Profiler measurements
and cross section microscopy on tiles that were removed in the 2009 JET
intervention are used to evaluate the net erosion in the main chamber and net
deposition in the divertor. In addition the mass of dust and flakes collected
from the JET divertor during the same intervention is also reported and
included as part of the balance. Spectroscopic measurements of carbon erosion
from the main chamber are presented and compared with the erosion measurements
for the main chamber.
