Laboratory-produced radiation related to the solar flare emission

Elton, R. C.; Lie, T. N.

doi:10.1007/bf00213510

Cited by 16 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Laboratory sources that are capable of producing highly ionized atoms include the low inductance vacuum spark, thetapinch sources, Tokamak-type magnetic traps, plasma focus machines, and the focussed pulse of a high power laser. These devices are described in detail in the literature, e.g., Elton and Lee (1972), Burgess (1972), and Fawcett (1973). The low inductance spark devices described by Cohen et al (1968) at Goddard, Lee and Elton (1971) at NRL, and Schwob and Fraenkel (1972) at the Hebrew University are capable of producing and exciting Fe xxv and Fe xxvi.…”

Section: Recent Results From Laboratory Plasmas (A) Laboratory Amentioning

confidence: 99%

“…Another significant manner in which laboratory plasmas resemble solar flare plasmas is in the overall phenomenological appearance of the EUV and X-ray radiations from both types of plasmas (Elton and Lee, 1972). There is a remarkable similarity regard ing the sequence of emission of hard X-rays, microwaves, and soft X-rays.…”

Section: Recent Results From Laboratory Plasmas (A) Laboratory Amentioning

confidence: 99%

“…Recent laboratory observations of satellite lines have been made using vacuum sparks (Schwob and Fraenkel, 1972;Elton and Lee, 1972;Lee, 1974;Margalit et al, 1974;Holz et al 9 1974), the plasma focus (Peacock et ai, 1971), and laser-produced plasmas (Peacock et al, 1973;Feldman et al 9 1974a, c). Satellite lines of iron have so far only been observed in vacuum spark spectra.…”

Section: (C) Satellite Lines In Laboratory and Flare Spectramentioning

confidence: 99%

See 2 more Smart Citations

X-Ray and EUV Spectra of Solar Flares and Laboratory Plasmas

Doschek¹

1975

Symp. - Int. Astron. Union

View full text Add to dashboard Cite

Recent laboratory work relevant to solar flares on the spectroscopy of highly ionized atoms is reviewed. Much of this work has concerned the X-ray and EUV spectrum of iron ions, Fe XVIII–Fe XXIV, which produce prominent emission lines in the spectra of solar flares. Also discussed are recently obtained laboratory X-ray spectra of emission lines of hydrogen-like and helium-like ions, and associated satellite lines due to transitions of the type, 1s2l—2p2l, 1s22l—1s2p2l, and 1s22l— —1s2l3p. Satellite lines have also been identified in spectra of solar flares, and can be used to determine the electron temperature of the plasma. The laboratory work is important in the planning of future experiments in solar flare X-ray and EUV spectroscopy.

show abstract

Section: Recent Results From Laboratory Plasmas (A) Laboratory Amentioning

confidence: 99%

Section: Recent Results From Laboratory Plasmas (A) Laboratory Amentioning

confidence: 99%

Section: (C) Satellite Lines In Laboratory and Flare Spectramentioning

confidence: 99%

See 1 more Smart Citation

X-Ray and EUV Spectra of Solar Flares and Laboratory Plasmas

Doschek¹

1975

Symp. - Int. Astron. Union

View full text Add to dashboard Cite

show abstract

Spectroscopy of Highly Ionized Atoms Produced by a Low-Inductance Vacuum Spark

Feldman

Doschek

1977

Atomic Physics 5

View full text Add to dashboard Cite

Two Methods of Space-Time Energy Densification

Sahlin

1976

Energy Storage, Compression, and Switching

View full text Add to dashboard Cite

With a viev to the goal of net energy production from a DT microexplosion, we study two ideas (methods) through which (separately or in combination) energy may be "concentrated" into a small volume and short period of time-the so-called space-time energy densification or compression. We first discuss the advantages and disadvantages of lasers and relativistic electron-beam {E-beam) machines as the sources of such energy and identify the amplification of laser pulses as a key factor in energy compression. The pulse length of present relativistic E-beam machines is the most serious linitatioo of this pulsed-power source. The first energy-compression idea we discuss is the reasonably efficient production of short-duration, hi^h-current relativistic electron pulses by the self interruption and restrii;e of a current in a plasna pinch due to the rapid onset uf strong turbulence. A 1-MJ plasma focus based on this method is nearing completion at this Laboratory. The second energy-compression Idea is based on laserpulse producti , through the parametric amplification of a self-similar or solitary wave pulse, for which analogs can be found in other wave processes. Specifically, the second energy-compression idea is a proposal for parametric amplification of a solitary, transverse magnetic pulse in a coaxial cavity with a Bennett dielectric rod as an inner coax. Amplifiers of this type can be driven by the pulsed power frorr a relativistic K-beam machine. If the end of the inner dielectric coax is nade of LiDT or another fusionable material, the amplified pulse can directly drive a fusion reaction-there would be no need to switch the pulse out of the system toward a remote target.

show abstract

Laboratory-produced radiation related to the solar flare emission

Cited by 16 publications

References 13 publications

X-Ray and EUV Spectra of Solar Flares and Laboratory Plasmas

X-Ray and EUV Spectra of Solar Flares and Laboratory Plasmas

Spectroscopy of Highly Ionized Atoms Produced by a Low-Inductance Vacuum Spark

Two Methods of Space-Time Energy Densification

Contact Info

Product

Resources

About