| 项目编号: | 1429794
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| 项目名称: | MRI: Development of a high precision ion microscope for geosciences applications |
| 作者: | Kevin McKeegan
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| 承担单位: | University of California-Los Angeles
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| 批准年: | 2013
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| 开始日期: | 2014-09-01
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| 结束日期: | 2018-08-31
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| 资助金额: | USD3696316
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| 资助来源: | US-NSF
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| 项目类别: | Continuing grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | development
; secondary ion mass spectrometry
; high-sensitivity ion microscope
; next generation
; high brightness ion source
; ucla national ion microprobe facility
; new ion microscope
; lateral spatial resolution
; k-12 education
; professional activity
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| 英文摘要: | The funding of this proposal will support the development of a new high-resolution, high-sensitivity ion microscope to serve as the prime instrument of the UCLA/NSF national, multi-user facility for secondary ion mass spectrometry (SIMS) research in the geosciences. The UCLA laboratory has served as a world-class facility for in situ microscale isotopic analyses of geologic materials for 18 years. The Principal Investigators will continue their programs of research training for graduate students (both at UCLA and elsewhere) and young postdoctoral scholars. In addition, they will continue their popular and effective outreach and inreach workshops for SIMS training of the next generation of geoscientists. The Principal Investigators and UCLA scientists and students continue to be involved in synergistic activities both locally and nationally, including professional activities and K-12 education and public outreach.
The central research tool of the UCLA National Ion Microprobe Facility has been the CAMECA ims 1270, the first commercial large-radius SIMS built by CAMECA instruments in consultation with UCLA scientists 23 years ago. Although the ims 1270 has been upgraded over the years, it is no longer state-of-the-art, and in several important research areas the ability to innovate and to undertake new types of investigations is limited by the instrument's technical capabilities. The PIs propose to partner with two instrument manufacturers (CAMECA, Oregon Physics) to develop a new ion microscope that will have (1) high brightness ion sources, (2) improved lateral spatial resolution, (3) improved mass resolving power, (4) improved throughput speed and sample capacity, (5) improved detector sensitivity and linearity leading to higher precision and accuracy in isotopic analyses, and (6) improved reliability. Although this development will be done cooperatively with two commercial entities, UCLA scientists and engineers will accomplish the overall design and implementation. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95842
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Kevin McKeegan. MRI: Development of a high precision ion microscope for geosciences applications. 2013-01-01.
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