Ion-beam-driven warm dense matter experiments

Bieniosek, F.M.; Barnard, J.J.; Friedman, A.; Henestroza, E.; Jung, Jin‐Young; Leitner, M.; Lidia, Steven; Logan, B.G.; More, R.M.; Ni, P.; Roy, P.K.; Seidl, P.A.; Waldron, W.L.

doi:10.1088/1742-6596/244/3/032028

Cited by 25 publications

(18 citation statements)

References 3 publications

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“…There are several steps to prepare a lithium aluminosilicate source: (1) produce the chemical compound, (2) grind the compound into powder, (3) apply a "green coating", (4) sinter the material to form a hard surface layer.…”

Section: Preparation Of Lithium β-Eucryptite Alumino-silicate Sourcementioning

confidence: 99%

“…Low-mass ions, such as lithium (Li + ), have an energy loss peak (dE/dx) at a suitable kinetic energy [1] for heating targets to electron-volt temperatures for studies of warm dense matter (WDM) [2]. The Heavy Ion Fusion Sciences (HIFS) program [3] at Lawrence Berkeley National Laboratory will carry out WDM experiments using Li + ion beam with energy 1.2 -3 MeV to achieve volumetric heating up to 0.1 -1 eV.…”

Section: Introductionmentioning

confidence: 99%

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Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources

Roy

Greenway

Kwan

2012

Review of Scientific Instruments

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A space-charge-limited beam with current densities (J ) exceeding 1 mA/cm 2 have been measured from lithium alumino-silicate ion sources at a temperature of ∼1275 • C. At higher extraction voltages, the source appears to become emission limited with J ≥ 1.5 mA/cm 2 , and J increases weakly with the applied voltage. A 6.35 mm diameter source with an alumino-silicate coating, ≤0.25 mm thick, has a measured lifetime of ∼40 hours at ∼1275 • C, when pulsed at 0.05 Hz and with pulse length of ∼6 µs each. At this rate, the source lifetime was independent of the actual beam charge extracted due to the loss of neutral atoms at high temperature. The source lifetime increases with the amount of alumino-silicate coated on the emitting surface, and may also be further extended if the temperature is reduced between pulses.

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Section: Preparation Of Lithium β-Eucryptite Alumino-silicate Sourcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources

Roy

Greenway

Kwan

2012

Review of Scientific Instruments

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“…This is achieved using heating drivers such as hot electrons from direct intense pulsed laser irradiation of a sample [6][7][8], ultra-bright x-rays from next generation light sources [9,10], and MeV pulsed ions. Ion pulses sufficient for heating to WDM temperatures can be achieved at accelerator facilities [11], or by pulsed laser acceleration [12,13], with the later delivering ions in a much shorter pulse (picoseconds vs nanoseconds), rapidly heating targets of several micron thickness volumetrically to several eV temperatures over an area of > 100 µm.…”

mentioning

confidence: 99%

“…We used an absolutely calibrated Streaked Optical Pyrometry (SOP) [11,12,15,21] system to measure the timeresolved spectral radiance at the back surface of the heated sample. The system employed a Hamamatsu C7700 high dynamic range ultrafast streak camera imaging 400 nm light from the heated target.…”

mentioning

confidence: 99%

Measurement of the equation of state of solid-density copper heated with laser-accelerated protons

et al. 2017

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“…A number of diagnostics have been fielded on NDCX-I. Our experiments are expected to shed light on droplet formation in metal targets under WDM conditions and on the properties of the subsequent debris shower [9].…”

mentioning

confidence: 99%

Diagnostics for ion beam driven high energy density physics experiments

Bieniosek

Henestroza

Lidia

et al. 2010

Review of Scientific Instruments

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Intense beams of heavy ions are capable of heating volumetric samples of matter to high energy density. Experiments are performed on the resulting warm dense matter (WDM) at the NDCX-I ion beam accelerator. The 0.3 MeV, 30-mA K + beam from NDCX-I heats foil targets by combined longitudinal and transverse neutralized drift compression of the ion beam. Both the compressed and uncompressed parts of the NDCX-I beam heat targets. The exotic state of matter (WDM) in these experiments requires specialized diagnostic techniques. We have developed a target chamber and fielded target diagnostics including a fast multi-channel optical pyrometer, optical streak camera, laser Doppler-shift interferometer (VISAR), beam transmission diagnostics, and high-speed gated cameras. We also present plans and opportunities for diagnostic development and a new target chamber for NDCX-II.

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Ion-beam-driven warm dense matter experiments

Cited by 25 publications

References 3 publications

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources

Measurement of the equation of state of solid-density copper heated with laser-accelerated protons

Diagnostics for ion beam driven high energy density physics experiments

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