New surface morphology for low stress thin-film-coated thermal neutron detectors

2002 ◽  
Vol 49 (4) ◽  
pp. 1999-2004 ◽  
Author(s):  
D.S. McGregor ◽  
R.T. Klann ◽  
H.K. Gersch ◽  
E. Ariesanti ◽  
J.D. Sanders ◽  
...  
Keyword(s):  
Thin Film ◽  
Surface Morphology ◽  
Thermal Neutron ◽  
Neutron Detectors

scholarly journals Thin Film Polymer Composite Scintillators for Thermal Neutron Detection

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Andrew N. Mabe ◽  
John D. Auxier ◽  
Matthew J. Urffer ◽  
Stephen A. Young ◽  
Dayakar Penumadu ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Neutron ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Fluorescence Emission ◽  
Neutron Detection ◽  
Fluorescent Sensors ◽  
Neutron Detectors ◽  
Neutron Detection Efficiency ◽  
Film Polymer

Thin film polystyrene composite scintillators containing LiF6 and organic fluors have been fabricated and tested as thermal neutron detectors. Varying fluorescence emission intensities for different compositions are interpreted in terms of the Beer-Lambert law and indicate that the sensitivity of fluorescent sensors can be improved by incorporating transparent particles with refractive index different than that of the polymer matrix. Compositions and thicknesses were varied to optimize the fluorescence and thermal neutron response and to reduce gamma-ray sensitivity. Neutron detection efficiency and neutron/gamma-ray discrimination are reported herein as functions of composition and thickness. Gamma-ray sensitivity is affected largely by changing thickness and unaffected by the amount of LiF6 in the film. The best neutron/gamma-ray discrimination characteristics are obtained for film thicknesses in the range 25–150 μm.

Optimizing diode thickness for thin-film solid state thermal neutron detectors

2012 ◽  
Vol 101 (14) ◽  
pp. 143506 ◽  
Author(s):  
John W. Murphy ◽  
George R. Kunnen ◽  
Israel Mejia ◽  
Manuel A. Quevedo-Lopez ◽  
David Allee ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Thermal Neutron ◽  
Neutron Detectors
Sign in / Sign up

Export Citation Format

Share Document