Laboratory Technician Support: Shock Wave Experiments in Geophysics

实验室技术人员支持：地球物理学中的冲击波实验

基本信息

批准号：
1829277
负责人：
Paul Asimow
金额：
$ 72.12万
依托单位：
California Institute of Technology
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-09-01 至 2024-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1829277&HistoricalAwards=false
关键词：
Laboratory Technician Support Shock Wave

项目摘要

This award will provide five years of stable funding to support a senior laboratory manager for the Caltech Lindhurst Laboratory of Experimental Geophysics. The Lindhurst Lab is dedicated to research into the interiors of the Earth and planets and the results of hypervelocity impacts on their surfaces, using laboratory scale impact experiments. The lab operates several large guns that can accelerate projectiles to speeds from hundreds to several thousand meters per second (that is, up to 17,000 miles per hour). When these projectiles hit their targets, observations of the resulting shock waves or of material recovered after the shock are used to probe both the process of impact itself and the properties of geological or technological materials under extreme compression. In some cases, these methods and the actual materials under study are relevant to both national and planetary defense applications. The senior laboratory manager position will enable recruitment and long-term retention of an expert staff member able to maintain continuous memory of laboratory methods, ensure safety, train students and postdoctoral researchers, and plan upgrades and maintenance.Within the time span of this award, the funded technician will dedicate efforts to a number of methods. First, an upgrade of the laboratory vacuum system to prepare the gun target chambers for shots in much less time. Second, transition from traditional machining to additive machining (3-D printing) for as many expendable parts as possible. Third, design, installation and commissioning of a new Photonic Doppler Velocimeter recently funded by the Defense Department's Office of Naval Research. Fourth, recalibration of our high-speed optical pyrometer for accurate dynamic temperature measurements. Fifth, design and testing of improved recovery experiments combining graded density impactors and impedance-matched sample chambers to achieve new pressure-temperature paths and better preservation of high-pressure phases.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项将提供五年的稳定资金，以支持Caltech Lindhurst实验室地球物理学实验室的高级实验室经理。 Lindhurst实验室致力于研究地球和行星内部的研究，以及使用实验室量表的影响实验，对表面的超速影响对表面产生影响。该实验室操作了几支大型枪支，可以将弹丸加速至每秒数百至几千米（即每小时17,000英里）的速度。当这些弹丸达到目标时，使用冲击后所产生的冲击波或在极端压缩下的地质或技术材料的性质探测所产生的冲击波或回收的材料。在某些情况下，这些方法以及所研究的实际材料都与国家和行星国防应用有关。高级实验室经理职位将使能够维持实验室方法的持续记忆，确保安全，培训学生和博士后研究人员，计划升级和维护的专家工作人员招募和长期保留。在此奖项的时间范围内，资助的技术人员将努力努力为许多方法。首先，对实验室真空系统进行了升级，以便在更少的时间内为枪支目标室做好准备。其次，从传统加工到添加剂加工（3-D打印）的过渡，以尽可能多的消耗零件。第三，最近由国防部海军研究办公室资助的新光子多普勒速度计的设计，安装和调试。第四，我们的高速光学高计的重新校准，以进行精确的动态温度测量。第五，对改进的恢复实验的设计和测试结合了渐变密度影响器和阻碍匹配的样品室，以实现新的压力温度路径，并更好地保存高压阶段。该奖项反映了NSF的法定任务，并被认为是通过该基金会的知识分子功能和广泛的影响来评估的，并被视为值得通过评估的支持。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Shock synthesis of Al-Fe-Cr-Cu-Ni icosahedral quasicrystal

Al-Fe-Cr-Cu-Ni二十面体准晶的冲击合成

DOI：
10.1063/12.0001005
发表时间：
2020
期刊：
AIP Conference Proceedings
影响因子：
0
作者：
Hu, Jinping;Asimow, Paul D.;Ma, Chi
通讯作者：
Ma, Chi

First synthesis of a unique icosahedral phase from the Khatyrka meteorite by shock-recovery experiment

DOI：
10.1107/s2052252520002729
发表时间：
2020-05-01
期刊：
IUCRJ
影响因子：
3.9
作者：
Hu, Jinping;Asimow, Paul D.;Bindi, Luca
通讯作者：
Bindi, Luca

High-pressure melt curve of shock-compressed tin measured using pyrometry and reflectance techniques

DOI：
10.1063/1.5132318
发表时间：
2019-12
期刊：
Journal of Applied Physics
影响因子：
3.2
作者：
B. L. La Lone;P. Asimow;O. V. Fat’yanov;R. Hixson;G. Stevens;W. Turley;L. Veeser
通讯作者：
B. L. La Lone;P. Asimow;O. V. Fat’yanov;R. Hixson;G. Stevens;W. Turley;L. Veeser

Shock experiments on basalt—Ferric sulfate mixes and their possible relevance to the sulfide bleb clusters in large impact melts in shergottites

玄武岩与硫酸铁混合物的冲击实验及其与六角岩中大冲击熔体中硫化物气泡簇的可能相关性

DOI：
10.1111/maps.13770
发表时间：
2021
期刊：
Meteoritics & Planetary Science
影响因子：
2.2
作者：
Rao, M. N.;Nyquist, L. E.;Asimow, P. D.;Ross, D. K.;Sutton, S. R.;See, T. H.;Shih, C. Y.;Garrison, D. H.;Wentworth, S. J.;Park, J.
通讯作者：
Park, J.

Application of Al-Cu-W-Ta graded density impactors in dynamic ramp compression experiments