Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Andrew C. Stephan"'
Autor:
Hee-Jung Im, Suree Brown, Steven A. Wallace, Banu Kesanli, Andrew C. Stephan, Sheng Dai, Byunghwan Lee
Publikováno v:
Journal of Physics and Chemistry of Solids. 69:1415-1418
Micelle–SiO 2 hybrid gels were designed and prepared as solid-state neutron-detecting materials based on micelle self-assembly. An organic liquid scintillator was homogeneously co-doped in a neutron absorbing lithiated PEG–silica gel through a mi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 579:184-187
Lithiated sol–gel glasses incorporating micron-scale organic and inorganic fluorescent dopant particles were fabricated and evaluated for use as thin-film composite neutron scintillators. The light emission spectra of the scintillators and their pu
Autor:
Laurence F. Miller, Andrew C. Stephan
Publikováno v:
Radiation Protection Dosimetry. 115:357-362
The Micromegas is a type of ionising radiation detector that consists of a gas chamber sandwiched between two parallel plate electrodes, with the gas chamber divided by a Frisch grid into drift and amplification gaps. Investigators have applied it to
Publikováno v:
Applied Radiation and Isotopes. 61:1375-1382
Recent investigations in using wavelength-shifting fibers with scintillator screens for two-dimensional position sensitive neutron detection have shown this method to be effective and affordable. However, hydrogen and carbon atoms in the readout fibe
Autor:
Andrew C. Stephan, Hee-Jung Im, Michelle D. Pawel, Sheng Dai, Suree Saengkerdsub, David Eugene Holcomb
Publikováno v:
Advanced Materials. 16:1757-1761
Autor:
Gabriel M. Veith, Andrew C. Stephan, S.S. Frank, C.L. Britton, R.G. Cooper, Robert J. Warmack, W.L. Bryan, Nancy J. Dudney, T.E. McKnight, Alan L. Wintenberg
Publikováno v:
IEEE Transactions on Nuclear Science. 51:1016-1019
A bright neutron source such as the Spallation Neutron Source (SNS) places extreme requirements on detectors including excellent 2-D spatial imaging and high dynamic range. Present imaging detectors have either shown position resolutions that are les
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 521:441-453
This paper describes a Micromegas neutron detector Monte Carlo simulation that has been developed, and compares its simulated neutron response with published experimental data. The theoretical and experimental results show good agreement, suggesting
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 505:16-19
Experimental results of a neutron detector manufactured by coating a silicon charged particle detector with a film of lithiated glass are presented. The silicon surface barrier detector (SBD) responds to the 6 Li(n, alpha)triton reaction products gen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 483:764-773
A neutron detector technology is demonstrated based on 6 Li/ 10 B doped sol–gel glass. The detector is a sol–gel glass film coated silicon surface barrier detector (SBD). The ionized charged particles from ( n , α) reactions in the sol–gel fil
Publikováno v:
Review of Scientific Instruments. 73:36-41
A micromechanical sensor for charged-particle flux detection utilizing the extreme force sensitivity of microcantilevers is demonstrated with alpha particles. The latter create a charge buildup on an electrically isolated collection plate, a metallic