  Multiplicity fluctuation of the target evaporated fragments emitted in 290 A
MeV 12C-AgBr, 400 A MeV 12C-AgBr, 400 A MeV 20Ne-AgBr and 500 A MeV 56Fe-AgBr
interactions is investigated using scaled factorial moment method in
two-dimensional normal phase space and cumulative variable space, respectively.
It is found that in normal phase space the scaled factorial moment (ln<Fq>)
increases linearly with increase of the divided number of phase space (lnM) for
lower q-value and increases linearly with the increase of lnM and then becomes
saturated or decreased for higher q-value, in cumulative variable space ln<Fq>
decreases linearly with increase of lnM, which indicates that no evidence of
non-statistical multiplicity fluctuation is observed in our data sets. So any
fluctuation indicated in the results of normal variable space analysis is
totally caused by non-uniformity of single-particle density distribution.
