Silica aerogels in high energy physics

Sumiyoshi, T.; Adachi, I.; Enomoto, R.; Iijima, T.; Suda, R.; Yokoyama, Masaru; Yokogawa, Hiroshi

doi:10.1016/s0022-3093(98)00057-x

Cited by 80 publications

(34 citation statements)

References 5 publications

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“…The radiator was newly developed prior to the BESS-98 Ñight, and it has a refractive index of 1.020 (Sumiyoshi et al 1998). In addition to the TOF trigger, an auxiliary trigger is generated by a signal from the Cerenkov counter to record energetic particles without bias or sampling.…”

Section: The Bess Spectrometermentioning

confidence: 99%

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Sanuki

Motoki

Matsumoto

et al. 2000

ApJ

320

226

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We report cosmic-ray proton and helium spectra in energy ranges of 1È120 GeV nucleon~1 and 1È54 GeV nucleon~1, respectively, measured by a Ñight of the Balloon-borne Experiment with Superconducting Spectrometer (BESS) in 1998. The magnetic rigidity of the cosmic ray was reliably determined by highly precise measurement of the circular track in a uniform solenoidal magnetic Ðeld of 1 T. Those spectra were determined within overall uncertainties of^5% for protons and^10% for helium nuclei including statistical and systematic errors.

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Section: The Bess Spectrometermentioning

confidence: 99%

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Sanuki

Motoki

Matsumoto

et al. 2000

ApJ

320

226

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“…Thus, they have been proposed for a variety of applications such as optical, thermal, acoustic and electronic materials. [2][3][4][5][6] The potential applications of silica aerogels have readily increased with the production of composites, covering fields such as catalysis or photoluminescence. [7][8][9] Composite aerogels mainly consist in homogeneous dispersions of particles hosted in an aerogel matrix.…”

mentioning

confidence: 99%

High-coercivity ultralight transparent magnets

Gich

Casas

Roig

et al. 2003

Applied Physics Letters

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Magnetic silica-aerogel composites have been synthesized by dispersing hard magnetic Nd2Fe14B particles in a sol during a fast sol-gel process and subsequently supercritically drying the resulting gels. The composites are found to retain most of the outstanding properties of their constituents: the large coercivity and moderate remanence of the magnetic powders and the transparency and low density of silica aerogels. Moreover, aerogels synthesized in the presence of a magnetic field exhibit the alignment of the particles, forming needle-like structures along the direction of the applied magnetic field, which results in optical and magnetic anisotropies. Due to their unique combination of properties, these types of materials may be appealing for magneto-optics and magnetic actuator applications.

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“…The porosity is as high as 95% and they are promising materials in the semiconductor industry [42] due to their low thermal conductivity, low density, good mechanical strength to compressional loads and their luminescent properties make them suitable in high energy physics detectors [43]. The property we are interested in is the dielectric function.…”

Section: Resultsmentioning

confidence: 99%

Reduction of the Casimir force using aerogels

Esquivel‐Sirvent

2007

Journal of Applied Physics

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By using silicon oxide based aerogels we show numerically that the Casimir force can be reduced several orders of magnitude, making its effect negligible in nanodevices. This decrease in the Casimir force is also present even when the aerogels are deposited on metallic substrates. To calculate the Casimir force we model the dielectric function of silicon oxide aerogels using an effective medium dielectric function such as the Clausius-Mossotti approximation. The results show that both the porosity of the aerogel and its thickness can be use as control parameters to reduce the magnitude of the Casimir force.

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Silica aerogels in high energy physics

Cited by 80 publications

References 5 publications

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

Precise Measurement of Cosmic‐Ray Proton and Helium Spectra with the BESS Spectrometer

High-coercivity ultralight transparent magnets

Reduction of the Casimir force using aerogels

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