The effect of a radiation field on excitation and ionisation in non-LTE high energy density plasmas

Rose, S. J.

doi:10.1016/j.hedp.2009.02.002

Cited by 13 publications

(6 citation statements)

References 36 publications

(44 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The photoexcitation and photoionization rates are obtained in a similar manner as shown in refs. [10,24]. The formulas to calculate the single and double Auger decay rates are described in detail in our previous papers [17,18] and we only give a brief description here.…”

Section: Theoretical Methodsmentioning

confidence: 99%

Effects of Direct Double Auger Decay on the Population Dynamics of Neon Irradiated by Ultraintense x‐ray Pulses

Cheng

Zeng

Yuan

2014

Contrib. Plasma Phys.

View full text Add to dashboard Cite

The population and charge state distribution of neon interacting with ultraintense x-ray pulses are investigated by solving a time-dependent rate equation in the detailed level-accounting (DLA) approximation. Due to the detailed description of neon atom and ions, our DLA result improves the agreement between predictions and experimental measurements for odd neon charge states. In the framework of the DLA formalism, we further studied the effects of direct double Auger decay (DDAD) on charge state distribution. After the 1s photoionization of neon atom, the DDAD processes give accessible decay channels from the K-shell hole state of Ne + to levels of Ne 3+ , resulting in an increase of the population fraction of Ne 3+ and a decrease of that of Ne 2+ . Compared with the results without considering the DDAD effects, better agreement is obtained between theory and experiment.

show abstract

Section: Theoretical Methodsmentioning

confidence: 99%

Effects of Direct Double Auger Decay on the Population Dynamics of Neon Irradiated by Ultraintense x‐ray Pulses

Cheng

Zeng

Yuan

2014

Contrib. Plasma Phys.

View full text Add to dashboard Cite

show abstract

“…Here, Maxwellian distribution is used in the present model. The detailed definitions of other rate coefficients can be found in [27].…”

Section: The Theoretical Methodsmentioning

confidence: 99%

Population kinetics and M band emission spectra of gold plasmas in non-local thermodynamic equilibrium by using a detailed relativistic configuration approach

et al. 2013

View full text Add to dashboard Cite

A collisional-radiative model based on the approach of detailed relativistic configurations is developed, where the complete set of atomic data including photo-excitation, photoionization, electron impact excitation, electron impact ionization and autoionization is calculated, and the data of the inverse processes are obtained by detailed balance. The population distribution is obtained by solving the rate equation under the steady-state condition. The present model is applied to calculate the charge state distribution and M band emission spectra of gold plasmas in non-local thermodynamic equilibrium under a variety of plasma conditions. Comparisons between the present work and experimental results were made and good agreement is found. For the strong transition lines, the intensities predicted by the present model agree with those of experimental spectra within 50%. The present work is useful in analyzing and interpreting experiments as well as in diagnosing the electron temperature in experiments.

show abstract

“…2005; Tschentscher & Toleikis 2005; Fisher et al. 2006; Rose 2009). With the commissioning and beginning of user operation of XUV and X-ray FELs worldwide, these techniques have now become experimentally feasible, and, as will be discussed in the following, are starting to fulfil their promise.…”

Section: Isochoric Heating On X-ray Felsmentioning

confidence: 99%

X-ray free-electron laser studies of dense plasmas

Vinko

2015

J. Plasma Phys.

View full text Add to dashboard Cite

The high peak brightness of X-ray free-electron lasers (FELs), coupled with X-ray optics enabling the focusing of pulses down to sub-micron spot sizes, provides an attractive route to generating high energy-density systems on femtosecond time scales, via the isochoric heating of solid samples. Once created, the fundamental properties of these plasmas can be studied with unprecedented accuracy and control, providing essential experimental data needed to test and benchmark commonly used theoretical models and assumptions in the study of matter in extreme conditions, as well as to develop new predictive capabilities. Current advances in isochoric heating and spectroscopic plasma studies on X-ray FELs are reviewed and future research directions and opportunities discussed.

show abstract

The effect of a radiation field on excitation and ionisation in non-LTE high energy density plasmas

Cited by 13 publications

References 36 publications

Effects of Direct Double Auger Decay on the Population Dynamics of Neon Irradiated by Ultraintense x‐ray Pulses

Effects of Direct Double Auger Decay on the Population Dynamics of Neon Irradiated by Ultraintense x‐ray Pulses

Population kinetics and M band emission spectra of gold plasmas in non-local thermodynamic equilibrium by using a detailed relativistic configuration approach

X-ray free-electron laser studies of dense plasmas

Contact Info

Product

Resources

About