| 项目编号: | 1428025
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| 项目名称: | MRI: Acquisition of a Canberra Broad Energy Germanium Detector BE3830 Gamma Spectroscopy System |
| 作者: | Amanda Keen-Zebert
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| 承担单位: | Nevada System of Higher Education, Desert Research Institute
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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: | USD162357
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| 资助来源: | US-NSF
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| 项目类别: | Standard 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: | energy
; gamma ray spectrometer
; dri
; ge detector
; gamma ray spectroscopy system
; river system
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| 英文摘要: | 1428025
Keen-Zebert
This Major Research Instrumentation (MRI) Program grant provides partial support for the acquisition of a Ge detector based gamma ray spectroscopy system that will support the full on-campus capability for optically stimulated and thermoluminescence geochronology. The gamma ray spectrometer will be used to assess the annual dose rate of radiation experienced by mineral phases to be dated that are resultant of radioactive decay of nuclides contained within the minerals. The equipment will allow for the complete capacity at the University of Nevada Desert Research Institute (DRI) to ascertain the burial time of mineral phases since last exposure to sunlight or temperatures in excess of 300 degrees C with application to Quaternary geoscience and archaeological investigations. The equipment builds on the OSL/TL reader infrastructure already housed at DRI which allows for measurement of equivalent dose, or the energy accumulated in crystal lattice defects as a result of radioactive active decay of trace nuclides in the mineral that are proportional to the length of time since last exposure to sunlight or high temperatures, which releases this crystal lattice trapped energy. OSL/TL dates are calculated based on the ratio of equivalent dose to dose rate.
OSL and TL dating capabilities at DRI will support fundamental research on landscape evolution and process geomorphology in both fluvial and aeolian landscapes over a range of environments from the humid mid-continent to the Great Basin of North America, mountainous regions of India and New Zealand, and river systems in the interior of South Africa. The facility will serve outside users and their students and the PI is actively engaged in local K-12 outreach activities that teaches students about natural occurring radioactivity and its useful applications.
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| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95831
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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: | |
Amanda Keen-Zebert. MRI: Acquisition of a Canberra Broad Energy Germanium Detector BE3830 Gamma Spectroscopy System. 2013-01-01.
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