  We report the first results from an imaging program with the ACS camera on
HST designed to measure the structural characteristics of a wide range of
globular clusters in NGC 5128, the nearest giant elliptical galaxy. From 12
ACS/WFC fields, we have measured a total of 62 previously known globular
clusters and have discovered 69 new high-probability cluster candidates not
found in any previous work. We present magnitudes and color indices for all of
these, along with rough measurements of their effective diameters and
ellipticities. The luminosity distribution of this nearly-uncontaminated sample
of clusters matches well with the normal GCLF for giant elliptical galaxies,
and the cluster scale size and ellipticity distributions are similar to those
in the Milky Way system. The indication from this survey is that many hundreds
of individual clusters remain to be found with carefully designed search
techniques in the future. A very rough estimate of the total cluster population
from our data suggests N_GC = 1500 in NGC 5128, over all magnitudes and within
a projected radius R = 25' from the galaxy center.
