skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Solution-grown crystals for neutron radiation detectors, and methods of solution growth

Patent ·
OSTI ID:1162109

An organic crystal according to one embodiment includes an organic crystal comprising diphenylacetylene and stilbene or a stilbene derivative, the crystal having physical characteristics of formation from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source. A system according to one embodiment includes an organic crystal comprising diphenylacetylene and stilbene or a stilbene derivative, the crystal having physical characteristics of formation from solution, the organic crystal exhibiting a signal response signature for neutrons from a radioactive source; and a photodetector for detecting the signal response of the organic crystal. Methods of making such crystals are also provided.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,872,125
Application Number:
13/477,910
OSTI ID:
1162109
Resource Relation:
Patent File Date: 2012 May 22
Country of Publication:
United States
Language:
English

References (69)

Scintillation Detection in Well Logging Using Fast and Slow Phosphors patent December 1963
Spectroradiometric Apparatus And Method For Measuring Radiation patent June 1974
Apparatus for measuring neutrons and gamma rays patent November 1984
Solid scintillator counting compositions patent September 1987
Diagnostic apparatus for intrinsic fluorescence of malignant tumor patent September 1990
Method and apparatus for detecting cancerous tissue using luminescence excitation spectra patent August 1991
Method and apparatus for distinguishing cancerous tissue from benign tumor tissue, benign tissue or normal tissue using native fluorescence patent July 1992
Method for determining if a tissue is a malignant tumor tissue, a benign tumor tissue, or a normal or benign tissue using Raman spectroscopy patent November 1993
Omniview motionless camera endoscopy system patent May 1994
Method for determining if tissue is malignant as opposed to non-malignant using time-resolved fluorescence spectroscopy patent September 1994
Method for determining if tissue is malignant as opposed to non-malignant using time-resolved fluorescence spectroscopy patent November 1995
Cell death genes of Drosophila melanogaster and vertebrate analogs patent January 1997
Radiation resistant solid state neutron detector patent March 1998
Method for detecting cancerous tissue using optical spectroscopy and fourier analysis patent June 1998
Endoscope for imaging infrared emissions within the range of 2 to 14 microns patent November 1998
Imaging of objects based upon the polarization or depolarization of light patent December 1998
Solid state neutron detector array patent August 1999
Stereo laparoscope with synchronized optics patent November 1999
Endodiagnostic method using differential thermal relaxation and IR imaging patent December 1999
Signal enhancement for fluorescence microscopy patent January 2001
Secure document reader and method therefor patent July 2001
Therapeutic laser device and method including noninvasive subsurface monitoring and controlling means patent July 2002
Imaging system with automatic gain control for reflectance and fluorescence endoscopy patent October 2002
Endoscope system patent November 2002
Apparatus for performing hyperspectral endoscopy patent March 2003
Photon-sorting spectroscopic microscope system patent February 2004
Endoscope with LED illumination patent May 2004
Imaging apparatus patent August 2004
Endoscope patent September 2005
Medical imaging, diagnosis, and therapy using a scanning single optical fiber system patent December 2005
Multi-modal optical tissue diagnostic system patent December 2005
Image processing apparatus patent February 2006
Near-infrared spectroscopic tissue imaging for medical applications patent March 2006
High-efficiency neutron detectors and methods of making same patent January 2007
Endoscope system using normal light and fluorescence patent February 2007
Autofluorescence detection and imaging of bladder cancer realized through a cystoscope patent August 2007
Linked list traversal with reduced memory accesses patent April 2011
Hyperspectral microscope for in vivo imaging of microstructures and cells in tissues patent May 2011
Solution-grown crystals for neutron radiation detectors, and methods of solution growth patent June 2012
Compounds for neutron radiation detectors and systems thereof patent June 2013
Method of simultaneously applying multiple illumination schemes for simultaneous image acquisition in an imaging system patent-application October 2001
Dual mode real-time screening and rapid full-area, selective-spectral, remote imaging and analysis device and process patent-application August 2003
Spectroscopic diagnostic methods and system patent-application December 2003
Scanning endoscope patent-application January 2005
Scintillation substances (variants) patent-application April 2006
Process for producing single crystal of gallium-containing nitride patent-application August 2007
Boron thin films for solid state neutron detectors patent-application January 2008
Simultaneous Acquisition of Differing Image Types patent-application October 2008
Solid state neutron detector patent-application November 2011
High Sensitivity, Solid State Neutron Detector patent-application November 2011
Compounds for Neutron Radiation Detectors and Systems Thereof patent-application July 2013
Recent developments in neutron detection journal April 2000
Development of organic scintillators journal June 1979
Growth, optical, thermal and mechanical studies of methyl 4-hydroxybenzoate single crystals journal August 2003
Characteristics of large-sized Ce:YAG scintillation crystal grown by temperature gradient technique journal June 2003
Effect of heat treatment on the stress and structure evolution of plasma deposited boron nitride thin films journal March 2008
Opportunities for new materials synthesis by hot wire chemical vapor process journal May 2011
New approach in depositing thick, layered cubic boron nitride coatings by oxygen addition—structural and compositional analysis journal November 2006
Deposition of thick cubic boron nitride films: The route to practical applications journal March 2005
New surface morphology for low stress thin-film-coated thermal neutron detectors journal August 2002
The introducing of fluorine into the deposition of BN: a successful method to obtain high-quality, thick cBN films with low residual stress journal September 2001
Effect of deposition parameters on the formation of cubic BN films deposited by plasma-assisted chemical vapour deposition from non-toxic material journal January 1992
Aberrant porphyrin metabolism in hepatocellular carcinoma journal April 1984
Autofluorescence characteristics of immortalized and carcinogen-transformed human bronchial epithelial cells journal January 2001
Laser induced fluorescence spectroscopy from native cancerous and normal tissue journal December 1984
Heme biosynthesis in human breast cancer—mimetic “in vitro” studies and some heme enzymic activity levels journal January 1990
Spectroscopic Diagnosis Of Colonic Dysplasia journal June 1991
<title>Subsurface imaging using the spectral polarization difference technique and NIR illumination</title> conference July 1999
Tissue imaging for cancer detection using NIR autofluorescence conference May 2002