Pressure and stress waves in a spallation neutron source mercury target generated by high-power proton pulses
Pressure and stress waves in a spallation neutron source mercury target generated by high-power proton pulses
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DOI：
10.1016/s0168-9002(99)00846-3
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发表时间：
2000-01-01
影响因子：
1.4
通讯作者：
Stechemesser, H
中科院分区：
文献类型：
--
作者：
Futakawa, M;Kikuchi, K;Stechemesser, H
国际ASTE合作在布鲁克海文的交替梯度同步加速器（AGS）上对一个散斑中子源靶进行了第一系列测量。用激光多普勒技术测量了高功率质子脉冲（脉冲持续时间约为40 ns）撞击液态汞靶的动态响应，并与有限元计算结果进行了比较。它表明，计算可以描述的脉冲注入后的至少100 μ s的时间间隔的实验结果。此外，已经观察到，压电式压力传感器不能应用于溅射靶的高伽马辐射场中。(C)2000 Elsevier Science B.V.保留所有权利。
The international ASTE collaboration has performed a first series of measurements on a spallation neutron source target at the Alternating Gradient Synchrotron (AGS) in Brookhaven. The dynamic response of a liquid mercury target hit by high-power proton pulses of about 40 ns duration has been measured by a laser Doppler technique and compared with finite elements calculations using the ABAQUS code. It is shown that the calculation can describe the experimental results for at least the time interval up to 100 mu s after the pulse injection. Furthermore, it has been observed that piezoelectric pressure transducers cannot be applied in the high gamma-radiation field of a spallation target. (C) 2000 Elsevier Science B.V. All rights reserved.