11 research outputs found
A Compact 3H(p,gamma)4He 19.8-MeV Gamma-Ray Source for Energy Calibration at the Sudbury Neutrino Observatory
The Sudbury Neutrino Observatory (SNO) is a new 1000-tonne D2O Cerenkov solar
neutrino detector. A high energy gamma-ray source is needed to calibrate SNO
beyond the 8B solar neutrino endpoint of 15 MeV. This paper describes the
design and construction of a source that generates 19.8-MeV gamma rays using
the 3H(p,gamma)4He reaction (``pt''), and demonstrates that the source meets
all the physical, operational and lifetime requirements for calibrating SNO. An
ion source was built into this unit to generate and to accelerate protons up to
30 keV, and a high purity scandium tritide target with a scandium-tritium
atomic ratio of 1:2.0+/-0.2 was included. This pt source is the first
self-contained, compact, and portable high energy gamma-ray source (E>10 MeV).Comment: 33 pages (including 2 table, 12 figures) This is the revised
manuscript, accepted for publication in NIM A. This revision relfects minor
editorial changes from the previous versio
The augmented saddle field discharge characteristics and its applications for plasma enhanced chemical vapour deposition
10.1063/1.4798928Journal of Applied Physics11313-JAPI
Gradient inverse opal photonic crystals via spatially controlled template replication of self-assembled opals
10.1039/c1nr11248aNanoscale3124951-495
Enhanced Photoconductivity in Thin-Film Semiconductors Optically Coupled to Photonic Crystals
GAO and SJ are Government of Canada Research Chairs in Materials Chemistry and Physics, respectively. GAO, NPK, SZ, and SJ are deeply indebted to the Natural Sciences and Engineering Research Council of Canada and the University of Toronto for financial support of this work. HM acknowledges partial funding provided by the Ramón Areces Foundation and the Spanish Ministry of Science and Education under grant MAT2005-03 028. The authors would like to thank Dr. Davit Yeghikyan and Dr. Stefan Costea for their assistance in carrying out the hydrogenated amorphous silicon depositions and the quantum efficiency measurementsPeer reviewe
Visible and Near-Infrared Photothermal Catalyzed Hydrogenation of Gaseous CO2 over Nanostructured Pd@Nb2O5
10.1002/advs.201600189Advanced Science310160018