Assistant Power Plant

Deepak Kumar

*** *********, ********** ** ******* and Astronomy, Johns Hopkins University,

**** *. ******* **., *********, MD 21218.

410-***-**** ******@***.***.*** http://www.pha.jhu.edu/ deepak/

Education

California Institute of Technology, Pasadena, California, USA.

PhD, Applied Physics, March 2009.

Doctoral Thesis: Experimental investigations of magnetohydrodynamic plasma jets.

Advisor: Paul M. Bellan

M.S., Applied Physics, June 2004.

Texas A&M University, College Station, Texas, USA.

M.S., Electrical Engineering (Information Theory and Channel Coding), August 2003.

Master s Thesis: Optimal Finite Alphabet Sources Over Partial Response Channels

Advisors: Scott L. Miller and Krishna R. Narayanan

Indian Institute of Technology-Bombay, Mumbai, India.

B.Tech., Electrical Engineering, August 2001.

Senior Year Thesis: Evoked Potential Estimation in Time Frequency Domain

Advisors: Vikram M. Gadre and Suresh R. Devasahayam

Tata Institute for Fundamental Research, Mumbai, India.

Nurture Program in Mathematics conducted by National Board for Higher Mathematics, India. 1999-

2001.

Experience

Johns Hopkins University, Baltimore, Maryland USA.

Research Experience - Post Doctoral Fellow December 2009 - Present

Installed and operated a transmission grating based imaging spectrometer on NSTX. The survey

spectrometer measured charge exchange and collisionally excited radiation from impurity ions in the

range of 30 to 700 .

A A

Developed a spectral simulation package to predict the line intensities and spatial distribution mea-

sured by the spectrometer.

Developed and installed diagnostics on a table top re ex plasma discharge experiment. The diagnostics

include visible spectroscopy, VUV spectroscopy and a transmission grating based imaging spectrometer

(in VUV and XUV). The diagnostics con rm the presence of non-Maxwellian tail ( 100 eV) in electron

energy distribution and experiments are underway to determine the spatial distribution of these fast

electrons.

Developed space resolved radiometers in XUV and VUV to provide fast ( 10 ms) electron temperature

measurements in low temperature plasmas. The radiometers were used on the PISCES-A setup at

University of California, San Diego for estimating local electron temperature.

Performed experiments on the re ex discharge to obtain low charge state Tungsten spectra.

Teaching Experience - Post Doctoral Fellow January 2011

Taught a three week inter-session course on A survey of nuclear energy in January 2011. The course

material included introduction to nuclear physics, ssion reactor design, nuclear safety, nuclear waste

management and an introduction to nuclear fusion. The course also included a eld trip to Peach

Bottom Nuclear power plant and simulation control room.

Nonlinear Ion Dynamics, Panorama City, California USA.

Work Experience - Associate Scientist August 2009 - September 2009

Conducted pulsed plasma experiments to achieve isotope enrichment. Details excluded because of

con dentiality constraints.

Saban Research Institute, Childrens Hospital Los Angeles, Los Angeles, California USA.

Work Experience - Consultant June - August 2009 and September - December 2009

Designed and implemented an intrinsic signal imaging system to acquire and measure the neural

response to periodic visual stimuli. Developed the software for high speed data acquisition (60 MB/s)

and subsequent analysis.

California Institute of Technology, Pasadena, California USA.

Research Experience - Graduate Research Assistant September 2003 - June 2009

Conducted pulsed plasma experiments (time scale 10 s) with diagnostics including high voltage

probe, Rogowski coil, high speed Xray diodes, magnetic probe array, density interferometer, time

1

resolved spectroscopy and high speed imaging.

Experimentally investigated the e ect of plasma gun current on the ow velocity of plasma jet during

the spheromak formation stage of the Caltech Spheromak Experiment. Modeled the non equilibrium

plasma ow using MHD.

Characterized the e ect of ignitron impedance on the discharge circuit of Caltech Spheromak Experi-

ment.

Built a VUV/Soft X-ray imaging system to study magnetic reconnection in plasma ux tubes.

Built a novel (high SNR) He-Ne interferometer to measure plasma density for the Caltech Spheromak

Experiment.

Teaching Experience - Graduate Teaching Assistant September 2004 - May 2008

Teaching Assistant for the graduate course on Plasma Physics. 2006-2008

Teaching Assistant for the undergraduate lab on Plasma Resonance Cones. 2004-2006

(Rebuilt the repetitive plasma experiment with modern hardware and technologies.)

The Golem Group, LLC, Santa Monica, California USA.

Work Experience - Software Developer December 2006 - November 2007

Starting member of the Golem group, LLC which received a US Dollar 1 million funding from Defense

Advanced Research Projects Agency (DARPA) for developing an autonomous vehicle for the Urban

Challenge, 2007.

Modi ed the state estimation software from the Golem Group/UCLA s DARPA grand challenge entry

to suit the needs for the Urban Challenge race.

Implemented a SLAM (Simultaneous localization and mapping) algorithm to use LADAR (Laser

detector and ranging) data for building a local map around the vehicle and using it to feedback on

the vehicle s state estimation.

The Golem Group / University of California, Los Angeles, California USA.

Work Experience - Software Developer October 2004 - October 2005

Member of a team collaboration between The Golem Group and University of California, Los Angeles

(UCLA) for developing an autonomous vehicle for the Grand Challenge, 2005.

Implemented an extended Kalman lter to estimate the state of an autonomous vehicle using GPS,

steering and velocity data as inputs.

Texas A&M University, College Station, Texas USA.

Research Experience - Graduate Researcher November 2001 - June 2003

Proposed a spectrum matching channel coding scheme for partial response channels. Analyzed the

performance of these codes using Matlab simulations and showed that they are asymptotically optimal

for low rate communications.

Teaching Experience - Graduate Teaching Assistant May 2002 - April 2003

Teaching Assistant for the graduate course on Modulation Theory. Spring 2003

Teaching Assistant for the undergraduate course on Linear Circuit Analysis. Fall 2002

Conducted the undergraduate Microprocessor Systems Design Lab. Summer 2002

Journal Publications

D. Kumar, D. J. Clayton, M. Parman, D. Stutman, K. Tritz, M. Finkenthal. Dual transmission

grating based imaging radiometer for tokamak edge and divertor plasmas. Accepted for publication at

Rev. Sci. Instrum.

D. J. Clayton, D. Stutman, K. Tritz, M. Finkenthal, D. Kumar, B. P. LeBlanc, S. Paul and S. A.

Sabbagh. Multi-energy SXR technique for impurity transport measurements in the fusion plasma

edge. Submitted to Plasma Physics and Controlled Fusion.

D. Kumar, M. Finkenthal, D. Stutman, R. E. Bell, D. J. Clayton, A. Diallo, B. P. LeBlanc, M. Podesta

and K. Tritz. Impurity analysis of NSTX using a transmission grating-based imaging spectrometer.

Plasma Phys. Control. Fusion, 54, 065010 (2012).

D. Kumar, D. Stutman, K. Tritz, M. Finkenthal, C. Tarrio, and S. Grantham. Transmission grating

based extreme ultraviolet imaging spectrometer for time and space resolved impurity measurements.

Review of Scienti c Instruments, 81, 10E507 (2010).

D. Kumar, A. Moser, and P. Bellan. Energy e ciency analysis of the discharge circuit of Caltech

spheromak experiment. IEEE Trans. Plasma Sci., 38, 1 (2010).

D. Kumar, and P. Bellan. Non-equilibrium Alfv nic plasma jets associated with spheromak forma-

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Curriculum Vitae: Deepak Kumar 2 June 13, 2012

tion. Phys. Rev. Lett., 103, 105003(2009).

D. Kumar, and P. Bellan. Heterodyne interferometer with unequal path lengths. Review of Scienti c

Instruments, 77, 083503 (2006).

R. Mason, J. Radford, D. Kumar, R. Walters, B. Fulkerson, E. Jones, D. Caldwell, J. Meltzer, Y.

Alon, A. Shashua, H. Hattori, E. Frazzoli, and S. Soatto. The Golem Group/UCLA autonomous

ground vehicle in the DARPA grand challenge, Journal of Field Robotics, special issue on DARPA

grand challenge 2005, 23, 8, (2006).

Refereed Conference Proceedings

P. M. Bellan, D. Kumar, E. V. Stenson, S. K. P. Tripathi, G. S. Yun, and A. L. Moser. Laboratory

simulations of astrophysical jets and solar coronal loops: new results. AIP Conference Proceedings

Volume 1242 pp. 156-163. Plasmas In The Laboratory And The Universe: Interactions, Patterns, and

Turbulence, Como (Italy), 1-4 December 2009.

E. Jones, B. Fulkerson, E. Frazzoli, D. Kumar, R. Walters, J. Radford, and R. Mason. Autonomous

o -road driving in the DARPA grand challenge. In Proc. of the IEE/ION Position, Location, and

Navigation Symp., Apr 2006.

S. V. Bonde, D. Kumar, S. R. Devasahayam, and V. M. Gadre. Nonparametric waveform estimation

in time and time-frequency domain an application to visual evoked potentials. In Proc. of BioVision

2001, International Conference on Biomedical Engineering, Dec 2001.

Non-Refereed Conference Proceedings

D. Kumar, D. Stutman, R. E. Bell, M. Finkenthal, D. J. Clayton, K. Tritz, B. P. LeBlanc, A.

Diallo and M. Podesta. Impurity analysis using a space resolved transmission grating based imaging

spectrometer on NSTX. In Proceedings of the 38th EPS conference on plasma physics, June 2011. P

4.047.

D. J. Clayton, K. Tritz, M. Finkenthal, D. Kumar, D. Stutman, R. E. Bell and B.P. LeBlanc. Edge

transport measurements with the new multi-energy soft-x-ray diagnostic on NSTX. In Proceedings of

the 38th EPS conference on plasma physics, June 2011. P 1.134.

D. Stutman, K. Tritz, D. J. Clayton, D. Kumar, M. Finkenthal, R. Bell and B. LeBlanc. Multi-

energy SXR imaging diagnostics for fusion experiments. In Proceedings of the 38th EPS conference on

plasma physics, June 2011. P 5.049.

Invited Presentations (first author only)

D. Kumar, A. Moser, and P. Bellan. Mechanism of helicity injection in the Caltech spheromak

experiment. Innovative Con nement Concepts Workshop. February 16-19, 2010. Princeton, NJ.

D. Kumar, and P. Bellan. Alfv nic plasma ow during spheromak preformation stage. Innovative

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Con nement Concepts Workshop. June 24-27, 2008. Reno, Nevada.

Selected Presentations (first author only)

D. Kumar et. al. Space and time resolved plasma emissivity measurements. April 30, 2012. Center

for energy research, Univeristy of California, San Diego.

D. Kumar and P. M. Bellan. Laboratory simulations of astrophysical jets. April 06, 2010. Department

of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland.

D. Kumar and P. M. Bellan. Experimental investigations of magnetohydrodynamic plasma jets. Oc-

tober 30, 2009. Department of Applied Physics and Applied Mathematics, Columbia University, New

York, New York.

D. Kumar and P. M. Bellan. Experimental investigations of magnetohydrodynamic plasma jets. Oc-

tober 06, 2009. Department of Physics and Astronomy, University of California, Irvine, California.

D. Kumar and P. M. Bellan. Experimental investigations of magnetohydrodynamic plasma jets. May

4, 2009. Department of Physics, The University of California, San Diego, California.

D. Kumar and P. M. Bellan. Experimental investigations of magnetohydrodynamic plasma jets. March

6, 2009. School of electrical and computer engineering, Cornell University, Ithaca, New York.

D. Kumar and P. M. Bellan. Experimental investigations of magnetohydrodynamic plasma jets. March

4, 2009. Princeton Plasma Physics Laboratory, Princeton, New Jersey.

D. Kumar and P. M. Bellan. Alfv nic plasma jets during spheromak formation. February 26, 2009.

e

Curriculum Vitae: Deepak Kumar 3 June 13, 2012

General Atomics, San Diego, California.

D. Kumar and P. M. Bellan. Alfv nic plasma ow during spheromak formation. October 06, 2008.

e

Aeronautics and Astronautics, The University of Washington, Seattle, Washington.

D. Kumar and P. M. Bellan. Alfv nic plasma ow during spheromak formation. October 02, 2008.

e

Department of Physics, The University of Wisconsin, Madison, Wisconsin.

D. Kumar and P. M. Bellan. Alfv nic plasma ow during spheromak formation. September 24, 2008.

e

Department of Physics and Astronomy, The University of California, Los Angeles, California.

D. Kumar and P. M. Bellan. A novel HeNe interferometer and its use to diagnose a plasma jet

detaching from planar electrodes to form a spheromak. US/Japan Workshop on Compact Torus

Plasmas. November 2-4, 2006. Swarthmore, Pennsylvania.

Outreach

Demonstrated Wimshurst machine and dissectible capacitors at the 9th annual physics fair at the

Johns Hopkins University. April 21st 2012.

Demonstrated Wimshurst machine and dissectible capacitors at the 8th annual physics fair at the

Johns Hopkins University. April 16th 2011.

Organized a lab tour, demonstration and tutorial talk on the solar coronal loop simulation experiment

at Caltech for members of P.E.O. international. January 16th 2008.

Skills

Familiarity with toroidal magnetic con nement, high vacuum technology, pulsed plasma experiments

( 5 kJ, 10 s), optics, spectroscopy, RF plasma generation, repetitively pulsed plasmas.

Computing and Software: C, Matlab, IDL, Labview, GNU/Linux, MDSplus, L TEX, SolidWorks,

A

VectorWorks.

Familiarity with atomic databases - CHIANTI and ADAS.

Media Coverage

April, 18th, 2011. Featured engineer on eeweb.com. Interview link.

Honors and Awards

Recipient of the Graduate Research Fellowship by Division of Engineering and Applied Science, Caltech

(2003-2004).

Best Paper Award for the paper Nonparametric Waveform Estimation in Time and Time-Frequency

Domain, An Application to Visual Evoked Potentials, in BIOVISION 2001, held at Indian Institute

of Science, Bangalore in December 2001.

Recipient of the Texas Telecommunication Engineering Consortium Fellowship (2001-2002).

Most Innovative Project award for the hardware project Prosthetic Hand Control Using Audio

Cues, at the Technological Festivals of IIT Bombay and IIT Kanpur in 2001.

Scholarship from the National Board for Higher Mathematics, India(2000).

Winner of a gold medal from the Indian Association of Physics Teachers for performance in the

National Standard Examination in Physics 1997, India. The performance was among the 25 best in

the country.

Ranked 4th in the Regional Mathematics Olympiad in Orissa, India(1995).

Extra Curricular

Court appointed special advocate with CASA of Baltimore. 2011-

Member of the Golem Group, LLC - a semi- nalist in the DARPA Urban Challenge 2007 and nalist

in the DARPA Grand Challenge 2005.

Co-Captain of the Caltech Karate Club. 2005-2007.

ORIENTATION ASSISTANT with the International Student Programs o ce at Caltech, for the week

long pre orientation of incoming international students - September 2004.

Elevation gain to 18,200 ft. at the BASIC MOUNTAINEERING COURSE organized by the govern-

ment of Himachal Pradesh, India. July 2001.

Person of the Year award by the student gymkhana, for my work as the General Secretary Hostel

A airs, IIT Bombay. 2000-2001.

Curriculum Vitae: Deepak Kumar 4 June 13, 2012

Best O ce Bearer award for my work as the Mess Councilor, Hostel 3-IIT Bombay. 1999-2000.

Affiliations

Member, American Physics Society - APS.

Individual a liate, Fusion Power Associates.

Practicing Shodan(1st degree black belt), Shotokan Karate of America - SKA.

Member of Baltimore area triathlon club.

Curriculum Vitae: Deepak Kumar 5 June 13, 2012

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