Steven Van Sciver

Repeatability of Cryogenic Multilayer Insulation

Wesley L. Johnson, Mark H. Vanderlaan, John Wood, Noah Rhys et autres

Due to the variety of requirements across aerospace platforms, and one off projects, the repeatability of cryogenic multilayer insulation (MLI) has never been fully established. The objective of this test program is to provide a more basic understanding of the thermal performance …

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Repeatability Measurements of Apparent Thermal Conductivity of Multilayer Insulation (MLI)

Mark H. Vanderlaan, David Stubbs, Koen Ledeboer, Johnathan P. J. Ross et autres

This report presents and discusses the results of repeatability experiments gathered from the multi-layer insulation thermal conductivity experiment (MIKE) for the measurement of the apparent thermal conductivity of multi-layer insulation (MLI) at variable boundary temperatures. Our apparatus uses a calibrated thermal link …

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Repeatability of Cryogenic Multilayer Insulation

Wesley L. Johnson, Mark H. Vanderlaan, Jessica Wood, Noah Rhys et autres

Due to the variety of requirements across aerospace platforms, and one off projects, the repeatability of cryogenic multilayer insulation has never been fully established. The objective of this test program is to provide a more basic understanding of the thermal performance repeatability …

us (code pays fourni par la source)

Searches for Exotic Spin-Dependent Interactions of Slow Neutrons with Matter using Neutron Spin Rotation

William Michael Snow, E. Anderson, L. Barrón Palos, Christopher D. Bass et autres

Polarized slow neutrons can be used to conduct sensitive searches for subtle spin-dependent neutron interactions in matter. A brief overview of the theoretical context in which such searches are important is given. We present the result of a recent measurement of neutron …

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Flow visualization in superfluid helium-4 using a thin line of He$_{2}$ excimer tracers

Alex Marakov, J. R. Gao, Wei Guo, Steven Van Sciver et autres

Active Magnetic Shielding for Long Duration Manned Space Missions

R. Battiston, W.J. Burger, V. Cavelli, R. Musenich et autres

Visualizing helium II counterflow turbulence around a cylinder

Tymofiy V. Chagovets, Steven Van Sciver

MAARSS: Magnet Architectures and Active Radiation Shielding Study

Shayne Westover, R. Meinke, R. Battiston, W.J. Burger et autres

Protecting humans from space radiation is a major hurdle for human exploration of the solar system and beyond. Like on Earth, large magnetic fields surrounding a spaceship would deflect charged particles away from the habitat region and reduce the radiation dose to …

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Back Matter for Volume 1434

John G Weisend, John Barclay, Susan R. Breon, Jonathan A. Demko et autres

Experiment for transient effects of sudden catastrophic loss of vacuum on a scaled superconducting radio frequency cryomodule

Andrew A. Dalesandro, Jay C. Theilacker, Steven Van Sciver

Results from sudden loss of vacuum on scaled superconducting radio frequency cryomodule experiment

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Thermal conductivity of spray-on foam insulations for aerospace applications

Matt Barrios, Mark H. Vanderlaan, Steven Van Sciver

A guarded-hot-plate apparatus [1] has been developed to measure the thermal conductivity of spray-on foam insulations (SOFI) at temperatures ranging from 30 K to 300 K. The foam tested in the present study is NCFI 24-124, a polyisocyanurate foam used on the …

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Hydraulic characteristics and thermal counterflow in helium II forced flow through orifice plates

Hyung Jin Kim, Steven Van Sciver

The purpose of the present research is to measure and anlyze the temperature changes and the pressure difference variations through orifice plates in superfluid helium bellows pump through a 1 m long, 73 mm inner diameter experimental channel containing Reynolds number is …

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