A mathematical model LET=cZdRb for identifying space heavy ions is established based on energy loss rate of the heavy ions in CR-39. Coefficients of the model are acquired through correlative curves between linear energy transfer and residual range.
A first approximation solution for electron motion and the corresponding expression for synchrotron energy loss rate are derived with field strengths and electron energy satisfying the constraint γB9×1011T.
The paper accounts simultaneously for the choice and decay type of isotope,particle energy spectrum,the energy loss rate of emitted particle in the mass,semiconductor characteristic and generation and recombination of carriers and sets up a theoretical model of radioisotope microbattery based on β-radio-voltaic effect.
Contrarily, restricted energy loss rate can not be the criterion of track formation in bubble detectors under ordinary condition for the reason that different heavy ions create tracks at different critical values of the restricted energy loss rate.
Experimental studies have been carried out with 500MeV/u \ 56 Fe, 650MeV/u \ 40 Ar, 600MeV/u \ 28 Si and 180MeV/u \ 4He for T-12 type bubble detectors. The studies show that threshold property of bubble detectors can be expressed by critical rate of energy loss.
The experimental method of calibrating chaoyang No. 1 polycarbonate solid state nucleartrack detector using heavy ions is reported. V vs REL response curves and empirical formu-lae for six etching conditions are also given.
since the equilibrium composition of strange matter is crucial to the accuratecalculation of its neutrino energy loss rates,we determine the composition by usingthe thermodynamic potentials(per unit volume)of the Strange matter, and find thatthe electron abundance decreases with the strong interaction coupling constant or ba-ryon density. After deriving the formula of neutrino energy loss rates of the strangematter。
In a thick (very thin) QW the energy loss rate to bulk PO-phonons is found to be larger (smaller) than the corresponding loss rate to surface modes.
Theoretical analysis of the acoustic phonon limited energy loss rate and relaxation time of hot 2D-excitons in a GaAs-square qua
The energy loss rate limited by the acoustic deformation potential increases proportional toT37/2 (T33/2) if the phonon energy is much larger (smaller) than the thermal energy of the excitons having the temperatureTe.
Dispersion relations for the energy loss rate are derived for anisotropic materials; they are a nontrivial extension of the usual Kramers-Kronig expression.
The energy loss rate for this process behaves asT7.
We have studied the registration characteristics of polycarbonate ChaoYang No.1 for ~(238)U. The experimental range of ~(238)U in it was determined. The relation between the energy of ~(238)U and range and the relation between the energy and REL of ~(238)U in it are calculated. The V_T versus REL response, the charge resolution and the mass resolution for heavy charged particles are analysed and discussed.
The experimental method of calibrating chaoyang No.1 polycarbonate solid state nucleartrack detector using heavy ions is reported.V vs REL response curves and empirical formu-lae for six etching conditions are also given.
Considering the phonon absorption and the phonon emission, we solve the equation for average energy loss rate of carriers and the hot phonon Boltzmann equation. We find that τ_(avg) is a sum of the electron phonon interaction time constant and the nonequilibrium phonon. decay time.