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Title: Resonant Auger Effect at High X-Ray Intensity

Abstract

The resonant Auger effect of atomic neon exposed to high-intensity x-ray radiation in resonance with the 1s {yields} 3p transition is discussed. High intensity here means that the x-ray peak intensity is sufficient ({approx} 10{sup 18} W/cm{sup 2}) to induce Rabi oscillations between the neon ground state and the 1s{sup -1}3p ({sup 1}P) state within the relaxation lifetime of the inner-shell vacancy. For the numerical analysis presented, an effective two-level model, including a description of the resonant Auger decay process, is employed. Both coherent and chaotic x-ray pulses are treated. The latter are used to simulate radiation from x-ray free-electron lasers based on the principle of self-amplified spontaneous emission. Observing x-ray-driven atomic population dynamics in the time domain is challenging for chaotic pulse ensembles. A more practical option for experiments using x-ray free-electron lasers is to measure the line profiles in the kinetic energy distribution of the resonant Auger electron. This provides information on both atomic population dynamics and x-ray pulse properties.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
945147
Report Number(s):
LLNL-JRNL-403123
Journal ID: ISSN 1050-2947; PLRAAN; TRN: US0900769
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 77; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AUGER EFFECT; DECAY; DISTRIBUTION; GROUND STATES; KINETIC ENERGY; LASERS; LIFETIME; NEON; NUMERICAL ANALYSIS; OSCILLATIONS; POPULATION DYNAMICS; RADIATIONS; RELAXATION; RESONANCE

Citation Formats

Rohringer, N, and Santra, R. Resonant Auger Effect at High X-Ray Intensity. United States: N. p., 2008. Web. doi:10.1103/PhysRevA.77.053404.
Rohringer, N, & Santra, R. Resonant Auger Effect at High X-Ray Intensity. United States. https://doi.org/10.1103/PhysRevA.77.053404
Rohringer, N, and Santra, R. Thu . "Resonant Auger Effect at High X-Ray Intensity". United States. https://doi.org/10.1103/PhysRevA.77.053404. https://www.osti.gov/servlets/purl/945147.
@article{osti_945147,
title = {Resonant Auger Effect at High X-Ray Intensity},
author = {Rohringer, N and Santra, R},
abstractNote = {The resonant Auger effect of atomic neon exposed to high-intensity x-ray radiation in resonance with the 1s {yields} 3p transition is discussed. High intensity here means that the x-ray peak intensity is sufficient ({approx} 10{sup 18} W/cm{sup 2}) to induce Rabi oscillations between the neon ground state and the 1s{sup -1}3p ({sup 1}P) state within the relaxation lifetime of the inner-shell vacancy. For the numerical analysis presented, an effective two-level model, including a description of the resonant Auger decay process, is employed. Both coherent and chaotic x-ray pulses are treated. The latter are used to simulate radiation from x-ray free-electron lasers based on the principle of self-amplified spontaneous emission. Observing x-ray-driven atomic population dynamics in the time domain is challenging for chaotic pulse ensembles. A more practical option for experiments using x-ray free-electron lasers is to measure the line profiles in the kinetic energy distribution of the resonant Auger electron. This provides information on both atomic population dynamics and x-ray pulse properties.},
doi = {10.1103/PhysRevA.77.053404},
url = {https://www.osti.gov/biblio/945147}, journal = {Physical Review. A},
issn = {1050-2947},
number = ,
volume = 77,
place = {United States},
year = {2008},
month = {3}
}

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