Adelphi Wins R&D 100 Award

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Adelphi Technology Inc.
2003 E. Bayshore Road
Redwood City, CA 94063

Tel: +1 (650) 474 2750
Fax: +1 (650) 474 2755

Liquid noble gas (LNG) Particle Detectors

(High Efficiency, Cost Effective, Large Volume Detectors of Gamma Radiation and Neutrons)

Interior of the Adelphi LNG detector

Together with its collaborators, Yale University and Rapiscan Inc., Adelphi is developing large volume detectors for homeland security and medical imaging. These detectors use Liquid Noble Gas (LNG) such as liquid argon to provide the most cost effective method of achieving large detector volumes. Since the scintillation material, a noble gas, is immune to chemical degradation, these detectors are extremely radiation resistant. Three prototypes have been constructed and tested. All three can detect gamma radiation from 100 keV to 10 MeV and neutrons in the fast and thermal energy regions.

One of these detectors now has wire grid installed to achieve charge position readout. This permits the detector to provide excellent energy resolution of the incoming radiation, exceeding that of sodium iodide detectors. The differing response of the scintillation light due to neutrons and gammas allows for exceptional pulse shape discrimination, and the sharp leading edge of the pulses makes fast nanosecond timing resolution possible.

The development of these detectors has been funded by the DOD Physical Security Equipment Action Group and the US Department of Energy SBIR/STTR program. Early versions of these detectors were developed by Yale University for the detection of dark matter under the federally funded LUX experiment now underway in South Dakota.
See: *

Adelphi is also happily participating in the dark matter search by supplying the Brown University LUX team with model DD108 neutron generator for an important calibration of the dark matter detector. See ** and James Verbus power point presentation.
** "Adelphi Generator Helps in Search for Dark Matter!"