Results 81 to 90 of about 7,941,196 (306)

The use of thermoluminescent dosimeters for In-vivo dosimetry in a fast neutron therapy beam [PDF]

, 2000
Bibliography: leaves 72-77.Thermoluminescent detectors (TLD-700) have been investigated for absorbed dose measurements in a p(66)/Be neutron therapy beam at the National Accelerator Centre.
Bhengu, Khumbulani John
core   +1 more source

Stable operation of a high-voltage high-current dc photoemission gun for the bunched beam electron cooler in RHIC

Physical Review Accelerators and Beams, 2020
The Low Energy RHIC electron Cooling (LEReC) project at Brookhaven National Laboratory recently demonstrated for the first time cooling of hadron bunches with radio-frequency (rf) accelerated electron bunches.
X. Gu, Z. Altinbas, S. Badea, D. Bruno, L. Cannizzo, M. Costanzo, A. Drees, A. V. Fedotov, W. Fischer, D. Gassner, M. Gaowei, P. Inacker, J. Jamilkowski, D. Kayran, J. Kewisch, C. J. Liaw, C. Liu, M. Mapes, K. Mernick, C. Mi, T. A. Miller, M. Minty, L. Nguyen, V. Ptitsyn, J. Sandberg, V. Schoefer, S. Seletskiy, L. Smart, A. Sukhanov, P. Thieberger, J. Tuozzolo, E. Wang, A. Zaltsman, He Zhao, Zhi Zhao, A. Bartnik, K. Smolenski   +36 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Long term beam phase monitoring based on HOM signals in SC cavities at flash [PDF]

, 2018
The accelerating RF fields in superconducting cavities must be controlled precisely in FEL (Free Electron Laser) facilities to avoid beam energy spread and arrival time jitter. Otherwise the beam quality is degraded.
Shi, L. (author), Baboi, N. (author), Wei, J.H. (author)   +2 more
core   +1 more source

Characterization of beam quality of unstable laser beams with the multiple hyperbolas method

Results in Physics, 2019
In this paper, the multiple hyperbolas method is proposed for characterizing the beam quality of unstable laser beams. Based on the traditional beam quality analyzer equipment, the proposed method captures multiple intensity images at every measurement ...
Lingqiang Meng, Qingqing Kong, Kunhao Ji, Zhigang Han, Hua Shen, Rihong Zhu   +5 more
doaj   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

Bending and free vibration of functionally graded beams using various higher-order shear deformation beam theories [PDF]

, 2012
In this paper, various higher-order shear deformation beam theories for bending and free vibration of functionally graded beams are developed. The developed theories account for higher-order variation of transverse shear strain through the depth of the ...
Thai, Huu-Tai, Vo, Thuc
core   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

Advanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi, Mathias Galetz, Georg Hasemann, Fabian Lanoy, Emma White, Manja Krüger   +5 more
wiley   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

A Preliminary Study on the Principle of Linear Effect Scaling Laws for Laser Atmospheric Transmission

Photonics
Numerical simulations were performed to rapidly predict and evaluate laser beam expansion caused by linear atmospheric transmission effects, such as turbulence and jitter, thereby enhancing the accuracy of the scaling law.
Xin Ye, Chengyu Fan, Wenyue Zhu, Pengfei Zhang, Xianmei Qian, Jinghui Zhang, Tao Jiang   +6 more
doaj   +1 more source