The range-energy relation for 0.1-600 keV electrons

Gledhill, J. A.

doi:10.1088/0305-4470/6/9/017

Cited by 36 publications

(13 citation statements)

References 37 publications

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“…The dependence of the flux on energy was approximated by a piece-wise exponential fit following Callis et al (1998). The energy deposition was obtained using the range-energy expression from Gledhill (1973) and the 80 • -isotropic energy distribution function from Rees (1989).…”

Section: Electron Precipitationmentioning

confidence: 99%

Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation

et al. 2011

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Abstract. The impact of NO x and HO x production by three types of energetic particle precipitation (EPP), auroral zone medium and high energy electrons, solar proton events and galactic cosmic rays on the middle atmosphere is examined using a chemistry climate model. This process study uses ensemble simulations forced by transient EPP derived from observations with one-year repeating sea surface temperatures and fixed chemical boundary conditions for cases with and without solar cycle in irradiance. Our model results show a wintertime polar stratosphere ozone reduction of between 3 and 10 % in agreement with previous studies. EPP is found to modulate the radiative solar cycle effect in the middle atmosphere in a significant way, bringing temperature and ozone variations closer to observed patterns. The Southern Hemisphere polar vortex undergoes an intensification from solar minimum to solar maximum instead of a weakening. This changes the solar cycle variation of the Brewer-Dobson circulation, with a weakening during solar maxima compared to solar minima. In response, the tropical tropopause temperature manifests a statistically significant solar cycle variation resulting in about 4 % more water vapour transported into the lower tropical stratosphere during solar maxima compared to solar minima. This has implications for surface temperature variation due to the associated change in radiative forcing.

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Section: Electron Precipitationmentioning

confidence: 99%

Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation

et al. 2011

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“…The practical range of b-rays in the alloy at the mean energy (5.69 keV) was determined to be 180 nm by the equation recommended by Gledhill [10]. After the exposure, two-dimensional mapping of b-ray intensity recorded in the IP was measured by means of an imaging analyzer (Fujix FDL5000).…”

Section: Methodsmentioning

confidence: 99%

Influence of heat treatment on tritium distribution in V–4Cr–4Ti alloy

Homma

Hatano

Daifuku

et al. 2007

Journal of Nuclear Materials

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“…The dependence of the flux on energy was approximated by a piece-wise exponential fit following Callis et al [1998]. The energy deposition was obtained using the range-energy expression from Gledhill [1973].…”

Section: Description Of the Model Experimentsmentioning

confidence: 99%

N₂O production by high energy auroral electron precipitation

et al. 2008

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[1] The Fourier transform spectrometer on SCISAT-1 observed enhanced concentrations of N 2 O above 50 km in February of 2004 and 2006 in the wintertime polar region. These anomalously high concentrations are associated with the transport of high levels of NO x in the polar night region from the upper mesosphere and lower thermosphere in both cases following sudden warming events in the middle of January. The NO x is produced by auroral electron precipitation. Simulations using a middle atmosphere chemistry climate model show significant amounts of N 2 O are produced in the upper mesosphere from the reaction of NO 2 and ground state atomic nitrogen. Thus, N 2 O acts as a signature of energetic electron precipitation. The model results exhibit polar-night-confined descent of NO x in the wake of sudden warmings and other dynamical regimes when the polar vortex intensifies at high latitudes in the mesosphere.

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The range-energy relation for 0.1-600 keV electrons

Cited by 36 publications

References 37 publications

Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation

Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation

Influence of heat treatment on tritium distribution in V–4Cr–4Ti alloy

N₂O production by high energy auroral electron precipitation

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The range-energy relation for 0.1-600 keV electrons

Cited by 36 publications

References 37 publications

Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation

Middle atmosphere response to the solar cycle in irradiance and ionizing particle precipitation

Influence of heat treatment on tritium distribution in V–4Cr–4Ti alloy

N2O production by high energy auroral electron precipitation

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N₂O production by high energy auroral electron precipitation