Test beam data from first FE-I3 modules have been analyzed (Attilio Andreazza).
Tested modules are:

Position	PLL	Module #	Lab + comments
1	5	510896	Bonn - Cis+IZM barrel
2	2	510903	Genova - Cis+AMS high leakage current
3	3	510929	Genova - Cis+AMS reworked - first runs
3	3	510805	Bonn - Cis+IZM barrel - second part
4	4	510733	LBL - Cis+AMS disks

For all the modules (except 510805) the in-time efficiency was measured for standard configurations and results were quite uniform. Tipical in-time efficiency as a function of time (in ns - please intend x-axis label as "ns") is shown here.
Besides the excellent result obtained, we can anticipate that real efficiency is higher than the value shown in the plot, since there is clear indication that about half of the missing hits are correlated between modules. This is due to trigger beam particles out of the telescope acceptance. They will be recovered by reconstructing tracks with DUTs.

Other studies:
TDC calibration for modules: 510733, 510903, 510805.
TOT comparison.

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