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Mission Statement
Recent papers and publications
NRL Detector Development Laboratory
The gamma ray astrophysics group at NRL has a fully equipped laboratory for the development of imaging gamma ray detectors. The laboratory is designed to study detectors with 100s of spectroscopy quality channels, requiring low noise and high precision electronics. Our capabilities include all varieties of semiconducting detectors, multiple anode readouts from position sensitive photomultiplier tubes, and an assortment of other imaging devices such as wire chambers, etc. A large number of photomultipliers, photodiodes, and various scintillators (NaI, CsI, BGO, plastic) are available to configure various experiments and demonstration projects.
The photograph (above) is a 25x25 strip germanium detector in our laboratory.
The detector is inside the vacuum cryostat. The red tape in the center
of the cryostat indicates the position of the detector. Fifty preamplifiers
are housed in the Roman helmet structure around the cryostat.
CAMAC SPECTROSCOPY LAB
Pictured is one of two independent CAMAC systems in our laboratory used to read out and digitize detector signals. Our current capability is up to 170 channels of shaping amplifiers with 12 and 13 bit peak-detect ADCs.
The system above is currently dedicated to strip detector development, and the other is being used to support the GLAST calorimeter project. Pictured are the CAMAC crate (left center-rack) and 60 channels of shaping amplifiers (right short rack). The germanium strip detector is on top of the table (right), and behind an x-y position table used here to study the position response of the detector.
CRYOSTAT TEST FACILITY
Back to Position Sensitive Detectors Project
last updated: 2-Nov-1998