S. Shen

Study on the Structure and Antioxidant Properties of Seamless Knitted Fabrics with Antioxidant Fibers

Lei Yan, Chang Lu, S. Shen, Zimin Jin et autres

The antioxidant properties of seamless knitted fabrics with antioxidant fibers determine their antioxidant effects. In this paper, we used five kinds of raw yarn materials, namely mint nylon filament, tea carbon nylon filament, coffee carbon nylon filament, collagen nylon filament, and nylon …

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Effect of Graphene Contained Far-Infrared Nylon Fiber and Knit Pattern of Pants on Surface EMG Signals of Exercise-Induced Muscle Fatigue

S. Shen, Zimin Jin, Shuxian Qian, Yuqiang Sun et autres

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FLASH Effect Modeling for Ion-beam Radiation Therapy Based on Microdosimetry

S. Shen, Wei Li, Xingming Fan, S. Wang et autres

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Performance degradation trend prediction of proton exchange membrane fuel cell based on GA-TCN

Ziliang Zhao, S. Shen, Zhangu Wang

Abstract To improve the prediction accuracy of the performance degradation trend of proton exchange membrane fuel cell (PEMFC), this paper proposes a temporal convolutional network (TCN) model based on genetic algorithm (GA) optimization to predict the performance degradation trend of PEMFC. Firstly, …

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The Physics of the Gas Attenuator for the Linac Coherent Light Source (LCLS)

D. D. Ryutov, R. M. Bionta, S Hau-Riege, K. Kishiyama et autres

A systematic assessment of a variety of physics issues affecting the performance of the LCLS X-ray beam attenuator is presented. Detailed analysis of the gas flow in the gas attenuator and in the apertures is performed. A lot of attention is directed …

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Photon beamlines and diagnostics at LCLS

Stefan Moeller, John Arthur, A. Brachmann, R. Coffee et autres

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Operating the LCLS Gas Attenuator and Gas Detector System with Apertures of 6 mm Diameter

D. D. Ryutov, R. M. Bionta, S Hau-Riege, K. Kishiyama et autres

The possibility of increasing the apertures of the LCLS gas attenuator/gas detector system is considered. It is shown that increase of the apertures from 3 to 6 mm, together with 4-fold reduction of the operation pressure does not adversely affect the vacuum …

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LCLS XTOD Tunnel Vacuum Transport System (XVTS) Final Design Report

S. Shen

The design of the X-Ray Vacuum Transport System (XVTS) for the Linac Coherent Light Source (LCLS) X-ray Transport, Optics and Diagnostics (XTOD) system has been analyzed and configured by the Lawrence Livermore National Laboratory's New Technologies Engineering Division (NTED) as requested by …

LCLS XTOD Attenuator System System Concept Report

K. Kishiyama, M Roeben, Jo Trent, D. D. Ryutov et autres

The attenuator system for the Linac Coherent Light Source (LCLS) X-ray Transport, Optics and Diagnostics (XTOD) system has been configured and analyzed by the Lawrence Livermore National Laboratory's New Technologies Engineering Division (NTED) as requested by the SLAC/LCLS program. The system layout, …

Design and Simulation of a Rotating Aperture & Vacuum System for Neutron Imaging

P Fitsos, James M. Hall, B. Rusnak, S. Shen

The development of a high-energy (10Mev) neutron imaging system at Lawrence Livermore National Laboratory (LLNL) depends on a precision engineered rotating aperture and vacuum system for generating neutrons that are used for imaging dense objects. This subsystem is part of a larger …

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Rotating Aperture Deuterium Gas Cell Development for High Brightness Neutron Production

B. Rusnak, James M. Hall, S. Shen

Work is underway at LLNL to design and build a high-brightness mono-energetic source for fast neutron imaging. The approach being pursued will use a 7-MeV deuterium linac for producing high-energy neutrons via a D(d,n)3He reaction. To achieve a high-brightness neutron source, a …

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Engineering Specification Document (ESD) of X-ray Vacuum Transport System (XVTS) for LCLS XTOD

S. Shen

The vacuum system of the X-Ray Vacuum Transport System (XVTS) for the Linac Coherent Light Source (LCLS) X-ray Transport, Optics and Diagnostics (XTOD) system has been analyzed and configured by the Lawrence Livermore National Laboratory's New Technologies Engineering Division (NTED) as requested …