Volume 32 Issue 1
Jan.  2012
Turn off MathJax
Article Contents
HUANG Yong, SHI Jiaming, YUAN Zhongcai. Comparison of Ionospheric Modification by Different Chemicals Release[J]. Chinese Journal of Space Science, 2012, 32(1): 33-39. doi: 10.11728/cjss2012.01.033
Citation: HUANG Yong, SHI Jiaming, YUAN Zhongcai. Comparison of Ionospheric Modification by Different Chemicals Release[J]. Chinese Journal of Space Science, 2012, 32(1): 33-39. doi: 10.11728/cjss2012.01.033

Comparison of Ionospheric Modification by Different Chemicals Release

doi: 10.11728/cjss2012.01.033
  • Received Date: 2010-11-17
  • Rev Recd Date: 2011-10-09
  • Publish Date: 2012-01-15
  • Six chemicals, H2, H2O, CO2, SF6, CF3Br and Ni(CO)4, are considered as ionospheric modification materials. Each of these chemicals reacts in the F region to produce localized plasma depletions and form large scale electron holes. In the active ionospheric modification experiments, the criteria for selecting the released chemicals include the cost and effectiveness. The effectiveness of released chemicals depends on the amount which goes into the vapor state. In this paper, the thermodynamics governing the vapor fraction of the released chemicals were investigated. Additionally, the size and magnitude of the electron depletions were calculated with finite element simulation method. The results show that H2O has the lowest vapor yield of about 19% from a heated, pressurized tank, and over 60% of the other five chemicals should be vented in gaseous form. To reduce the cost, the chemicals with small density, such as H2 or CO2 may be chosen. Based on estimating the electron density reduction, the chemicals which have slow diffusion speed and large chemical reaction rates, such as SF6 or Ni(CO)4, may be selected. These chemicals can produce a larger, deeper and more durable electron hole.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article Views(2189) PDF Downloads(1081) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return