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people:spanchap:home [2018/03/10 20:42] – created spanchappeople:spanchap:home [2018/03/12 22:32] (current) spanchap
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 +{{:people:spanchap:img_20161116_160420.jpg?200|}}
 ====== Subramania Athiray Panchapakesan ====== ====== Subramania Athiray Panchapakesan ======
    
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- __**Focusing Optics X-ray Solar Imager (//FOXSI//) - Sounding rocket mission**__[[http://foxsi.umn.edu/|FOXSI-3]]+ __**Research Interests**__ : 
 +My prime research interests are in the study of high energy phenomena of star- planet systems and associated space-science instrumentation development for space borne experiments.
  
-//Sounding rocket experiment to perform imaging and spectroscopy of the Sun in hard X-rays (HXR) using direct focusing X-ray optics//+ __**Education**__ 
  
-  * Lead role in planning and executing tests and calibration of focal plane X-ray detectors for the third flight, //FOXSI//-3.  +PhD Indian Space Research Organization (**ISRO**) Indian Institute of Astrophysics (**IIA**), Bangalore, India. - **2015**
-             2017 SPIE article on improved calibration for //FOXSI// detectors [[ ]] +
-  Combined differential emission measure (DEManalysis of solar microflares observed during FOXSI-2 flight using data SDO/AIA and Hinode/XRT.  +
-              Preliminary results presented at AGU 2017 [[ ]] +
-  Development of charge transport model to understand spectral response and support calibration data for FOXSI detectors. +
- +
  
-==== __Chandrayaan-1 X-ray Spectrometer (C1XS) - X-ray fluorescence experiment onboard Chandrayaan-1__ ==== ESA/RAL, UK, Indian Space Research Organization. (ISRO), India +//**Thesis Title **// : Study of lunar surface chemistry using Swept Charge Devices
  
-//X-ray fluorescence experiment on India's first Moon mission, Chandrayaan-1, to study the surface chemistry of the Moon.//+----
  
-  Development and validation of X-ray Fluorescence (XRF) inversion algorithm x2abundance +====Projects and Missions : Roles and responsibilities==== 
-  * X-ray spectral analysis of C1XS data determination of lunar abundances. + 
 + 
 +**Focusing Optics X-ray Solar Imager (//FOXSI//)**[[http://foxsi.umn.edu/|FOXSI-3]] : //Sounding rocket experiment to perform imaging and spectroscopy of the Sun in hard X-rays (HXR) using direct focusing X-ray optics// 
 + 
 +  * **X-ray instrumentation and Team management** : I play a lead role in managing the //FOXSI//-3 detector team at the University of Minnesota. Planning and executing calibration experiments of focal plane X-ray detectors. Participated in the testing and calibration of //FOXSI// X-ray optics at Stray light facility, Marshall space flight center and contributed to the analysis of optics calibration data. Demonstrated an improved way of calibrating //FOXSI// detectors using thin foil X-ray fluorescence. 
 +             * 2017 SPIE article on improved calibration for //FOXSI// detectors [[https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10397/2273915/Calibration-of-the-hard-x-ray-detectors-for-the-FOXSI/10.1117/12.2273915.short]] 
 +  * **Solar science** : I study the plasma distribution as a function of temperature for the //FOXSI-2// observed microflare regions. For this work, I perform a combined differential emission measure (DEM) analysis using EUV data from //SDO/AIA//, SXR data from //Hinode/XRT// and HXR data from //FOXSI-2//.  
 +              * Preliminary investigation results presented at AGU 2017 can be found here [[https://www.researchgate.net/publication/321886590_Combined_DEM_analysis_of_FOXSI-2_microflare_observations]].  
 + 
 +**__Chandrayaan-1 X-ray Spectrometer (C1XS)__** ESA/RAL, UK, ISRO, India : //X-ray fluorescence (XRF) experiment on India's first Moon mission, Chandrayaan-1, to study the surface chemistry of the Moon.// 
 + 
 +  * **Lunar X-ray studies** : I played a major role in the X-ray spectral analysis of C1XS data and determination of lunar surface elemental abundances. I have developed a new XRF inversion algorithm //"x2abundance"// and rigorously validated it using laboratory XRF experiments. My thesis work describes the **first direct evidence of enhanced Sodium surface abundances on the Moon**   
               * Link to my PhD thesis [[https://goo.gl/pAk5tV]]                * Link to my PhD thesis [[https://goo.gl/pAk5tV]] 
-  * First direct evidence of enhanced Sodium abundances on the lunar surface - C1XS results [[https://goo.gl/pkwXnB]] +              * First direct evidence of enhanced Sodium abundances on the lunar surface - C1XS results [[https://goo.gl/pkwXnB]] 
-  * Nature Asia article on C1XS results - "High surface sodium may rewrite lunar history" - [[https://goo.gl/5d0Bj7]]+              * Nature Asia article on C1XS results - "High surface sodium may rewrite lunar history" - [[https://goo.gl/5d0Bj7]] 
 +    * 
  
-==== Chandrayaan-2 X-ray Spectrometer Collaboration ====+**Chandrayaan-2 X-ray Spectrometer Collaboration ** 
 + 
 + 
 +**ASTROSAT **: 
 + 
 +----
  
  
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   * LPI Career Development Award : Lunar & Planetary Institute, NASA, USRA          : 2014    * LPI Career Development Award : Lunar & Planetary Institute, NASA, USRA          : 2014 
   * K. D. Abhyankar Best Thesis Presentation Award : Astronomical Society of India. : 2016   * K. D. Abhyankar Best Thesis Presentation Award : Astronomical Society of India. : 2016
-  * + 
 + 
 +---- 
 +==== List of publications - source Google Scholar  ==== 
 + 
 +[[https://scholar.google.com/citations?hl=en&user=m5O6Dn8AAAAJ&view_op=list_works&sortby=pubdate| Publications feed from Google Scholar ]] 
 + 
 + 
 +----
 **Email:** spanchap@.umn.edu, athray@gmail.com **Email:** spanchap@.umn.edu, athray@gmail.com
  
people/spanchap/home.1520736169.txt.gz · Last modified: 2018/03/10 20:42 by spanchap