New Approach for Lanthanide Halide Crystal Growth

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-08ER85104
Agency Tracking Number: N/A
Amount: $749,995.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Radiation Monitoring Devices, Inc.
44 Hunt Street, Watertown, MA, 02472
Duns: 073804411
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 William Higgins
 Mr.
 (617) 668-6800
 BHiggins@RMDInc.com
Business Contact
 Gerald Entine
Title: Dr.
Phone: (617) 668-6800
Email: NMarshall@RMDInc.com
Research Institution
N/A
Abstract
Gamma-ray spectrometers based on lanthanide halide and related scintillators are a very promising class of detectors for nuclear non-proliferation monitoring, providing excellent energy resolution and fast response. However, the growth of large crystals of lanthanide halide scintillators, using traditional melt based processes, has been difficult, due to the physical and chemical properties of lanthanide halides and the limitations imposed by melt-based crystal growth processes. This project will develop technology to grow large crystals of lanthanide halide compositions by a solution growth technique that overcomes many of the problems faced by traditional melt-based approaches. In Phase I, lanthanide halide crystals of size 1 ¿2 cm3 were grown from solution. Their scintillation properties were evaluated, and overall feasibility was demonstrated. Phase II will optimize the solution growth process, including a scale-up of the growth technique. Large crystals of the lanthanide halides and elpasolites (up to 1 ¿2 in3) will be grown from organic solutions. Commercial Applications and other Benefits as described by the awardee: In addition to the application to nuclear non-proliferation monitoring, the materials should find use in detectors used in gamma-ray imaging systems for astronomy, non­destructive studies, and medical imaging

* information listed above is at the time of submission.

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