Development of a Polarimeter System for Solar Synoptic High-Sensitivity Observations
太阳天气高灵敏度观测旋光仪系统的研制
基本信息
- 批准号:2119740
- 负责人:
- 金额:$ 59.6万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-11-01 至 2024-10-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).Solar coronal mass ejections (CMEs) are a key component in generation of space weather and solar storms that can impact our society. They can damage satellites, disrupt radio communications, and even create blackouts of the electricity power grids. This project will develop an instrument to provide high-sensitivity and high-fidelity information about CMEs. The developed system will serve as a long-term platform for training students from diverse backgrounds at the Big Bear Solar Observatory.A new polarimetry system will be developed to observe the near infrared (NIR). This system has unique features including: (1) High-speed solar polarization in the NIR. Polarization measurements in the NIR can provide better sensitivity than the visible. Due to the atmospheric turbulence disturbance and the fact that several images are required for the polarization measurements, a low-speed polarimeter cannot reliably measure the true polarization. This system will be the first polarimeter that can achieve a polarization measurement speed up to 100 Hz at the NIR He I 10830 Angstrom line, and thus provide a true polarization measurement with high sensitivity for solar CME investigations; (2) the polarimetry system will be the first instrument that acquires polarization measurements in the NIR He I line for CME associated events on a regular and synoptic basis over an instant 2-dimensional field of view (FOV) up to 320’’ x 256’’ without the need of the long slit scanning currently used in the tradition spectrograph, which is mandatory to search, monitor, and track CME events; (3) The high-speed 2-dimensional polarization images will be used to derive the diffraction-limited images for each of the Stokes vector components using the blind deconvolution technique, and thus to provide diffraction-limited magnetic field images that current large ground-based telescopes would not offer, and thus provide good image quality over a large FOV that is close to that provided by a space-based instrument.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.
该奖项全部或部分由2021年美国救援计划法案(公法117-2)资助。太阳日冕物质抛射(CME)是产生空间天气和太阳风暴的关键组成部分,可以影响我们的社会。它们可以破坏卫星,干扰无线电通信,甚至造成电网停电。该项目将开发一种仪器,提供有关日冕物质抛射的高灵敏度和高保真度信息。开发的系统将作为一个长期的平台,培训来自不同背景的学生在大熊太阳观测站。一个新的偏振测量系统将被开发来观察近红外(NIR)。该系统具有以下特点:(1)在近红外波段实现了太阳光的高速偏振。在NIR中的偏振测量可以提供比可见光更好的灵敏度。由于大气湍流干扰和偏振测量需要多幅图像,低速偏振仪不能可靠地测量真实偏振。这一系统将是第一个能够在近红外He I 10830埃谱线上实现高达100 Hz偏振测量速度的偏振仪,从而为太阳日冕物质抛射研究提供高灵敏度的真正偏振测量;(二)偏振测量系统将是第一个在近红外He I谱线上获得偏振测量的仪器,用于定期和天气学基础上的CME相关事件,即时二维视场(FOV)高达320“x 256”,而不需要目前在传统摄谱仪中使用的长狭缝扫描,这是搜索,监视和跟踪CME事件所必需的;(3)高速二维偏振图像将用于导出衍射-- 使用盲去卷积技术为每个斯托克斯矢量分量提供有限的图像,从而提供当前大型地面望远镜无法提供的衍射限制磁场图像,该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
专利数量(0)
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Deqing Ren其他文献
Correction of Non–Common-Path Error for Extreme Adaptive Optics
极端自适应光学器件的非共路径误差校正
- DOI:
10.1086/664947 - 发表时间:
2012-02 - 期刊:
- 影响因子:3.5
- 作者:
Deqing Ren;Bing Dong;朱永田;Damian J. Christian - 通讯作者:
Damian J. Christian
A high-contrast imaging polarimeter with a stepped-transmission filter based coronagraph
- DOI:
10.1088/1674–4527/16/5/073 - 发表时间:
2016 - 期刊:
- 影响因子:1.8
- 作者:
Chengchao Liu;Deqing Ren;Yongtian Zhu;Jiangpei Dou;Jing Guo - 通讯作者:
Jing Guo
A high-contrast imaging polarimeter with a stepped-transmission filter based coronagraph
一种带有基于步进透射滤光片的日冕仪的高对比度成像旋光仪
- DOI:
10.1088/1674-4527/16/5/073 - 发表时间:
2016-04 - 期刊:
- 影响因子:1.8
- 作者:
Chengchao Liu;Deqing Ren;Yongtian Zhu;Jiangpei Dou;Jing Guo - 通讯作者:
Jing Guo
Solar Ground-Layer Adaptive Optics
太阳能地面层自适应光学器件
- DOI:
10.1086/681672 - 发表时间:
2015-05 - 期刊:
- 影响因子:3.5
- 作者:
Deqing Ren;Laurent Jolissaint;Xi Zhang;Jiangpei Dou;Rui Chen;Gang Zhao;Yongtian Zhu - 通讯作者:
Yongtian Zhu
Demonstration of portable solar adaptive optics system
便携式太阳能自适应光学系统演示
- DOI:
10.1117/1.oe.51.10.101705 - 发表时间:
2012-10 - 期刊:
- 影响因子:1.3
- 作者:
Deqing Ren;Bing Dong - 通讯作者:
Bing Dong
Deqing Ren的其他文献
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{{ truncateString('Deqing Ren', 18)}}的其他基金
Development of a High-Speed and Full-Disk Polarimeter for Solar Synoptic Observations
用于太阳天气观测的高速全盘旋光仪的开发
- 批准号:
1906166 - 财政年份:2019
- 资助金额:
$ 59.6万 - 项目类别:
Standard Grant
Development of a device for measuring turbulence in the air above telescopes that observe the sun
开发用于测量观测太阳的望远镜上方空气湍流的装置
- 批准号:
1607921 - 财政年份:2016
- 资助金额:
$ 59.6万 - 项目类别:
Continuing Grant
CAREER: A Portable Solar Adaptive Optics System for High-Resolution Imaging Investigations
职业:用于高分辨率成像研究的便携式太阳能自适应光学系统
- 批准号:
0841440 - 财政年份:2009
- 资助金额:
$ 59.6万 - 项目类别:
Continuing Grant
Development of an Advanced Image Slicer Integral Field Unit for Diffraction-Limited 3-D Imaging, Spectroscopy and Polarimetry
开发用于衍射限制 3D 成像、光谱学和偏振测量的先进图像切片器整体现场装置
- 批准号:
0501743 - 财政年份:2004
- 资助金额:
$ 59.6万 - 项目类别:
Continuing Grant
Development of an Advanced Image Slicer Integral Field Unit for Diffraction-Limited 3-D Imaging, Spectroscopy and Polarimetry
开发用于衍射限制 3D 成像、光谱学和偏振测量的先进图像切片器整体现场装置
- 批准号:
0352826 - 财政年份:2004
- 资助金额:
$ 59.6万 - 项目类别:
Continuing Grant
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基于偏振干涉和机器学习的新型旋光仪提高弱测量的测量精度
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用于无线电自适应光学的具有超导电路的相关旋光仪相机
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紧凑型旋光仪和光谱仪对
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