Speaker
Dr
Serge Ouedraogo
(LLNL)
Description
An instrument to measure the attenuation length of near UV
light propagating in ultra-pure water has been constructed at
Lawrence Livermore National Laboratory (LLNL). The
instrument is an 8-meter long horizontal polypropylene pipe
capable of measuring the absolute attenuation length of
ultra pure water to within 5%. The instrument was designed
to measure the effect of LBNE detector materials on the
transparency of pure water and gadolinium doped water. The
measurement process includes soaking the materials in both
ultra pure water and gadolinium doped for extended periods
time and transferring the soaked water into the instrument
for absolute attenuation length measurement. We present in
this talk the measurement of the instrument uncertainty as
well as measurements of the attenuation length degradation
rate for pure water.
Author
Dr
Serge Ouedraogo
(LLNL)
Co-authors
Dr
Adam Bernstein
(LLNL)
Dr
Steven Dazeley
(LLNL)
