Results 121 to 130 of about 2,621 (180)

Cancer Brachytherapy at the Nanoscale: An Emerging Paradigm. [PDF]

Chem Biomed Imaging
Ghosh S, Lee SJ, Hsu JC, Chakraborty S, Chakravarty R, Cai W.   +5 more
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Nonphotographic Alpha Autoradiography and Neutron-Induced Autoradiography

Science, 1970
With a new combination of two techniques, (i) alpha-particle or fission fragment registration in thin polymer foils by etching and (ii) automatic counting and magnification of the etched perforations by local evaporation of a thin metal layer with an electric spark, the sensitivity of conventional photographic methods for determining quantity and ...
K, Becker, D R, Johnson
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Neutron Induced Autoradiography and Pixe Analysis

MRS Proceedings, 1992
ABSTRACTWe have used the TRIGA reactor and the Ion Beam Facility at Cornell to illustrate neutron induced autoradiography and PIXE analysis of known pigments in demonstration paintings made for our undergraduate course, ‘Art, Isotopes and Analysis’. A group of pigments were chosen containing elements with half-lives detectable by the neutron activation
W. Stanley Taft, James W. Mayer, Howard C. Aderhold, Matt Keller, Gia Rizzo   +4 more
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Autoradiography of neutron-activated rock slabs

Chemical Geology, 1970
Abstract Autoradiographs in macro-scale of rocks are produced after subjecting polished rock slabs to thermal neutron activation. The obtained picture shows the distribution of induced activity in the rock slab. 1–5 days after irradiation most of the exposure of the film is due to 24 Na formed by ( n , γ) reaction from natural sodium ( 23 Na). After
K. Bjørlykke, A.O. Brunfelt
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Neutron Autoradiography of Trace Amounts of Gadolinium

Nuclear Technology, 1992
This paper reports that application of gadolinium in neutron capture therapy is under evaluation. Crucial to development of this therapy is an imaging technique that would show the distribution and concentration of parts-per-million amounts of {sup 157}Gd in sliced samples.
Jing-Luen A. Shih, Robert M. Brugger†
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Neutron-induced autoradiography of lithium silicate glasses

Journal of Materials Science, 1970
Immiscibilities between silica and lithium disilicate were investigated. Alpha particles ejected from 6Li atoms by thermal neutrons were used to autoradiograph surfaces representing diffusion-zone cross-sections. Etchant-enlarged alpha tracks in nitrocellulose disclosed the distribution of lithium.
F. W. Wood, A. H. Robinson
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Nitrogen distribution measurements by neutron induced autoradiography

Journal of Radioanalytical and Nuclear Chemistry, 1998
A method utilizing plastic track detectors was developed to determine the nitrogen distribution and concentration in the presence of boron in metals. Experiments were performed at the UVAR (cadmium ratio ≈25) and the NIST Reactor (cadmium ratio ≈3000). The minimum detectable concentration of nitrogen at a given concentration of boron has been estimated
Z. En, J. S. Brenizer, B. Hosticka, J. Gao, D. A. Becker   +4 more
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Evaporation process in histological tissue sections for neutron autoradiography

Radiation and Environmental Biophysics, 2018
The analysis of the distribution and density of nuclear tracks forming an autoradiography in a nuclear track detector (NTD) allows the determination of 10B atoms concentration and location in tissue samples from Boron Neutron Capture Therapy (BNCT) protocols. This knowledge is of great importance for BNCT dosimetry and treatment planning.
Natalia M. Espector, Agustina Portu, Gustavo A. Santa Cruz, Gisela Saint Martin   +3 more
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Neutron capture autoradiography for a study on boron neutron capture therapy

Radiation Measurements, 2001
Abstract For the study on boron neutron capture therapy, CR-39 plastic track detectors attached with the whole-body sections of tumor bearing mice infused with 10 B were exposed to thermal and cold neutron beams. Neutron capture autoradiographic images obtained by the cold neutron irradiation were extremely superior in quality than that of the ...
K Ogura, A Yamazaki, H Yanagie, M Eriguchi, E.H Lehmann, G Küehne, G Bayon, K Maruyama, H Kobayashi   +8 more
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Neutron Activation Autoradiography

2016
Autoradiography uses a photographic film or imaging plate which are placed in direct contact with a painting after irradiation by slow neutrons. The pigments become radioactive after the interaction with the neutron beam and the emitted radiation (gammas, X-rays and electrons, so called beta-rays) is registered in the film or plate.
A. Denker, N. Kardjilov, B. Schröder-Smeibidl   +2 more
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