As part of our contribution to the GlueX experiment at Jefferson Lab, the Carnegie Mellon
University group has built the central drift chamber for the experiment. This detector is
a 1.5 meter long, 1.2 meter diameter cylinder that contains over 3500 straw tubes. A
20-micron diameter gold-plated tungsten wire is strung down the center of each tube and
the detector is electronically read out at the upstream end of the Glue Experiment.
The most detailed information on the detector can be found on the
GlueX Wiki under the
Central Drift Chamber
Construction of the detector started in summer of 2010 and the final chamber
was delivered to Jefferson Lab in October of 2013. The detector is shown
about one-quarter of the way into construction in the clean room at Carnegie Mellon.
In order to build this detector a team of four technicians and a Research Scientist
were occupied for the entire time of the project.
The detector was installed in the GlueX experiment in March of 2014, as shown in the
picture below. It was hooked up to the data acquisition system in June of 2014,
and cosmic events have been read out since that time.
First photon beam will come to the GlueX experiment in November of 2014 and first
physics is expected in 2015.