Lead Pb Radius Experiment : PREX

1
Lead ( Pb) Radius Experiment PREX
208
Measure RMS radius of neutron
distribution to 1 via parity - violating
elastic scattering.
Fundamental nuclear physics, applications
to
Neutron Stars, Atomic PV, Heavy Ions
208 Pb
Upcoming Test Beam (Jan 26 31)
1 Test cavity beam monitors at low
current (50 nA). 2 Luminosity monitor
beam-noise electronic-noise tests. 3
Commission new 18-bit ADCs 4 Test the
Hall A/C beam interaction.
(continued )
2
208
Pb
Cryo-cooled Cu frame
PREX Test Beam (cont.)
diamond
beam

• Test lead / diamond target to

• Commission new PREX detector

• Commission Compton Integrating Method

Goal 1 polarimetry
Integrating FADC