Results 211 to 220 of about 277,444 (259)

A Spatially Restricted Linear Energy Transfer Equation

Radiation Research, 1992
An analytical expression is developed for calculating the average energy deposited by an ion in a volume with dimensions less than the range of the secondary electrons produced. The expression is obtained by including two additional terms in an energy-restricted linear-energy-transfer equation. The usual energy-restricted expression accounts for energy
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Non-linear dynamics and energy transfer

Journal of Molecular Structure, 1986
Abstract Non-linear dynamics is mostly concerned with coupled anharmonic oscillators, a common situation in the classical description of molecule dynamics. Non-linear systems are in general not integrable, but for small enough energy or couplings most trajectories are quasiperiodic (KAM theorem).
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Linear Energy Transfer and Track Structure

1993
Publisher Summary This chapter discusses track structures and linear energy transfer. There are two types of energy dissipation of heavy ions—nuclear and electronic stopping. Nuclear stopping has high RBE values and predominates at extremely low specific energies of a few kiloelectronvolts per mass unit, corresponding to the last micrometers of the ...
Gerhard Kraft, Michael KrÄMer
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Energy Transfer in a Linear Turbulence Model

Volume 6: 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, 2018
Energy transfer is present in many natural and engineering systems which include different scales. It is important to study the energy cascade (which refers to the energy transfer among the different scales) of such systems. A well-known example is turbulent flow in which the kinetic energy of large vortices is transferred to smaller ones.
Bendegúz Dezső Bak, Tamás Kalmár-Nagy   +1 more
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Electronic Energy Transfer in Linear Polymer Chains

High Energy Chemistry, 2002
The effect of the size of a polymer molecule and the character of the motion of its units in solution on the luminescence kinetics of chromophores attached to the polymer chain was studied.
E. N. Bodunov, M. N. Berberan-Santos, J. M. G. Martinho   +2 more
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Comments on radiation dosimetry and linear energy transfer

Sozial- und Pr�ventivmedizin SPM, 1991
The quantification of the physical effects of ionizing radiation in human tissue is the basis of risk assessment. This quantification results from determination of kerma or absorbed dose. The procedure for the absolute determination of absorbed dose with an ionization chamber is discussed. The biological effects of ionizing radiation are dependent, not
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Absorbed Dose and Linear Energy Transfer in Radiation Experiments

Radiology, 1959
It is important in most radiation experiments to have both a quantitative measure of the amount of radiation involved, and a qualitative description of the radiation which uniquely defines its significant properties. The required quantitative measure is the absorbed dose, which is the amount of energy absorbed per unit mass of the irradiated material ...
M, DANZKER, N D, KESSARIS, J S, LAUGHLIN
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Passive spectrometry of linear energy transfer: development and use

Radiation Protection Dosimetry, 2004
A linear energy transfer (LET) spectrometer based on the evaluation of particle track parameters in a chemically etched polyallyldiglycolcarbonate (PADC) track detector has been developed at our laboratory. It permits us to determine LET spectra between 10 and 700 keV microm(-1) in tissues. The LET spectra obtained permit us to calculate total dose and
F, Spurný, A G, Molokanov, V P, Bamblevski   +2 more
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Dependence of the Nucleoside Effect on Linear Energy Transfer

International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1979
L929 cells were irradiated by cyclotron-produced neutrons and by 14.8 MeV monoenergetic neutrons. For comparison cells were also irradiated by 60Co gamma rays. Following irradiation cells were treated by an equimolar solution of deoxyribonucleosides, and the effect on cell survival measured.
A, Ferle-Vidović, D, Petrović, J, Sorić, I, Slaus, D, Rendić   +4 more
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Controlling energy and charge transfer in linear chlorophyll dimers

Chemical Communications, 2007
A series of linkers constructed from combinations of phenyl and ethynyl groups is shown to permit ultrafast energy transfer between two chlorophylls, while allowing control over radical cation migration between them.
Richard F, Kelley, Michael J, Tauber, Thea M, Wilson, Michael R, Wasielewski   +3 more
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