Controlled Generation of Double Emulsions for Laser Fusion Target Fabrication Using a Glass Capillary Microfluidic Device

Iwasa, Yuki; Yamanoi, Kohei; Kaneyasu, Yumi; Norimatsu, T.

doi:10.1080/15361055.2017.1372988

Cited by 11 publications

(4 citation statements)

References 27 publications

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“…The junction boxes are designed to hold glass capillaries and PTFE tubing in place and hence there is no need to manually align or glue the capillaries as with other microcapillary platforms. 81,110 In all cases, inexpensive off-the-shelf surfactants such as SDS to stabilise the water phases, and 1H,1H,2H,2H-perfluoro-1-octanol (PFO) to stabilise the oil phases are used to create the multiple emulsions. They also show the formation of binary water-inoil-in-water multicompartmental double emulsions with predetermined combinations of two different types of inner droplets (Fig.…”

Section: C Microfluidic Geometry For Water-in-water Droplet Generatio...mentioning

confidence: 99%

Materials and methods for droplet microfluidic device fabrication

et al. 2022

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Section: C Microfluidic Geometry For Water-in-water Droplet Generatio...mentioning

confidence: 99%

Materials and methods for droplet microfluidic device fabrication

et al. 2022

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“…In addition, deuterated polystyrene targets [22] can generate neutrons during IFE experiments; these allow investigation of the fusion reaction as well as the temperature of the compressed core. Cuoleate and deuterated polystyrene microsphere targets are usually fabricated by the emulsion method [23,24]. The organic solvent in which Cu-oleate or deuterated polystyrene are dissolved is flowed through an aqueous solution at a constant flow rate to generate oil-in-water (O/W) emulsions.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of high-concentration Cu-doped deuterated targets for fast ignition experiments

et al. 2022

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In high energy density physics including inertial fusion energy using high power laser, doping tracer atoms and deuteration of target materials play an important role in diagnosis. For example, the low concentration copper dopant acts as an X-ray source for electron temperature detection while the deuterium dopant acts as a neutron source for fusion reaction detection. However, the simultaneous achievement of Cu doping, deuterated polymer, mechanical toughness and chemical robustness for the fabrication process is not so simple. In this study, we report the successful fabrication of a Cu-doped deuterated target. The obtained samples were characterized by inductively coupled plasma optical emission spectrometry (ICP-OES), differential scanning calorimetry (DSC), and Fourier transform infrared spectroscopy (FTIR). The simultaneous measurements of Cu K-shell X-ray emission and beam fusion neutron were demonstrated using a petawatt laser in Osaka university.

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“…The recent development of microfluidics permits the generation and manipulation of small volume of fluids with excellent control and repeatability [1]. An excellent example is the advances in microscale droplet generation techniques by glass capillary tubes [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Easy-to-operate fabrication of tapered glass capillaries for microdroplet generation

Wei

Cheng

et al. 2019

J. Micromech. Microeng.

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Tapered glass capillaries play an important role in microdroplet generation and related microfluidic applications such as particle synthesis, digital PCR and microrectors. However, its controlled production poses a challenge. Specifically, there is difficulty controlling the tip sizes of capillaries with good repeatability at an affordable cost, which is critical to produce standard droplets for use by research groups. To produce tapered capillaries, micro needle geometries are first pulled by a commercial pipette puller, which yields a sharp tip (i.e. 1–3 m). Those tips need to be enlarged and standardized by post microfabrication. Although larger tips could be achieved by advanced pulling-forging, sanding-forging or breaking-forging methods, the uniformity and repeatability do not meet the requirements for mass production. In this paper, several easy-to-operate fabrication approaches, including mechanical and chemical fabrication methods, are studied. Chemical etching fabrication method shows good repeatability and robust control of dimensions. A capillary droplet microfluidic device assembled by tapered glass capillaries fabricated by chemical etching method is also presented, which shows good performance for droplet generations. This non-labor intensive fabrication is straightforward and be readily adopted for industrial scale mass production.

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Controlled Generation of Double Emulsions for Laser Fusion Target Fabrication Using a Glass Capillary Microfluidic Device

Cited by 11 publications

References 27 publications

Materials and methods for droplet microfluidic device fabrication

Materials and methods for droplet microfluidic device fabrication

Fabrication of high-concentration Cu-doped deuterated targets for fast ignition experiments

Easy-to-operate fabrication of tapered glass capillaries for microdroplet generation

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