Dear colleagus,

Our student at A&T, Martin Jones, performed a cosmic ray test of
one bar of the lucite hodoscope. The results are attached as  z-measured
vs z-set. The error bars are sigma of distributions.
In average it is 5.5 cm. The trigger signal was a concidence
between signals of two 10x10 cm^2 scintillators, at 20 cm from
each other, and 10 cm lead bricks in-between, which provided
T=230 MeV threshold, beta>0.92 for muons.
Cosmic rays were perpendicular to the surface of the bar.
He continues measuring at different angles. Also, he will
replace 10x10 cm^2 scintillators by 2x10 cm^2 that he built.
In this test we did not use amplifiers, but set up high voltages
at 2100 V.

We will discuss the results in this Friday meeting.
--
Samuel Danagoulian,
Professor of Physics
North Carolina A&T State University
1601 E. Market St. Greensboro, NC 27411
Tel. (336)285-2111
Fax: (336)334-7423