Name: Modern Engineering Trends in Astronomy - 2019
Start: 2019-09-15T08:15:00+05:30
End: 2019-09-17T18:00:00+05:30
Location: Banglore

Modern Engineering Trends in Astronomy - 2019

from Sunday, 15 September 2019 (08:15) to Tuesday, 17 September 2019 (18:00)

Monday, 9 September 2019
Tuesday, 10 September 2019
Wednesday, 11 September 2019
Thursday, 12 September 2019
Friday, 13 September 2019
Saturday, 14 September 2019
Sunday, 15 September 2019

09:00 Welcoming Remarks -Director, IIA, Bengaluru
Welcoming Remarks -Director, IIA, Bengaluru
09:00 - 09:10
Welcome Remarks -Director, IIA, Bengaluru

09:10 Plenary Session, "L&T's contribution to Mega Science Projects"-Ravi Kataria, Head Business Development & Marketing, Missiles & Aerospace Business, Larsen & Toubro Limited.
Plenary Session, "L&T's contribution to Mega Science Projects"-Ravi Kataria, Head Business Development & Marketing, Missiles & Aerospace Business, Larsen & Toubro Limited.
09:10 - 10:00
"L&T's contribution to Mega Science Projects"-Ravi Kataria, Head Business Development & Marketing, Missiles & Aerospace Business, Larsen & Toubro Limited.

10:00 “India and Square Kilometre Array”-Y. Gupta, Centre Director,NCRA
“India and Square Kilometre Array”-Y. Gupta, Centre Director,NCRA
10:00 - 10:30
“Square Kilometre Array”-Y. Gupta, Centre Director,NCRA

10:30 “India's contribution to TMT hardware”-N Viswanatha, Former GD, ISRO & Consultant TMT Project, IIA, Bengaluru
“India's contribution to TMT hardware”-N Viswanatha, Former GD, ISRO & Consultant TMT Project, IIA, Bengaluru
10:30 - 11:00

11:00 Poster Presentation & Coffee/Tea Break
Poster Presentation & Coffee/Tea Break
11:00 - 11:30

11:30 "Wide Field Optical Spectrograph for Thirty Meter Telescope – India’s contribution in the design and development"-Devika K Divakar, Project Scientific Associate, India-TMT Coordinate Center,IIA, Bengaluru
"Wide Field Optical Spectrograph for Thirty Meter Telescope – India’s contribution in the design and development"-Devika K Divakar, Project Scientific Associate, India-TMT Coordinate Center,IIA, Bengaluru
11:30 - 11:45

11:45 INVESTIGATING SINGLE PHOTON INTERACTION PRODUCED BY TYPE II SPDC
INVESTIGATING SINGLE PHOTON INTERACTION PRODUCED BY TYPE II SPDC
11:45 - 12:00
INTRODUCTION- SPDC is a nonlinear instant optical process that converts one photon of higher energy (namely, a pump photon), into a pair of photons (namely, a signal photon, and an idler photon) of lower energy, in accordance with the law of conservation of energy and law of conservation of momentum. It is an important process in quantum optics, for the generation of entangled photon pairs, and of single photons. METHOD OF PHOTON INTERACTION EXPERIMENT- The main goal of photon interaction experiment is to collide two photons at specific point in space and time exploring the particle nature of light and to reveal new information about the very nature of photons. The goal of photon collision is accomplished using β barium borate crystal which produces a pair of entangled photons using spontaneous parametric down-conversion (SPDC) process which are to be collided. INFERENCES OF THE EXPERIMENT- The main inference that can be drawn from the results of the experiment is to explain how the photons can be split into more fundamental particles (possibly dark photons). This interaction between the photons collision will help us to know and clarify our understanding of photon and our universe. It will also give us a clue as to how our universe might meet its ultimate fate. CALCULATION OF COLLISION POINT- x=a cos⁡θ, y=l_1+b sin⁡θ (for one of the ellipse) x=c cos⁡∅, y=〖-l〗_2+ d sin⁡∅ (for second ellipse) ∅= 〖sin〗^(-1)⁡[(da/bc)± √((〖da/bc)〗^2-4[〖{l〗_1+l_2+b^2-〖(bc/a)〗^2}/〖(bc/a)〗^2 ] )] θ = c/a cos[ 〖sin〗^(-1)⁡[(da/bc)± √((〖da/bc)〗^2-4[〖{l〗_1+l_2+b^2-〖(bc/a)〗^2}/〖(bc/a)〗^2 ] )]] ] REFERENCES- 1) Effect of high dimensional entanglement of Laguerre - Gaussian modes in parametric down conversion in journal of optical society of America B (April 2009) by Yoko Miyamoto (University of Tokyo), Schigeki Takeuchi (University of Kyoto). 2) Constraining the photon lifetime in physical review letters ( July 2013) by Julian Heeck (Max Planck institute of nuclear physics). 3) The mass of the photon (compilation of 130 research papers), by Liang-Cheng Tu1, Jun Luo and George T Gillies.

12:00 “Low cost Characterisation of Sun and Nadir Sensors for Attitude Control of Nano Satellites”- Mr. Asir Nesa Dass N, IIST
“Low cost Characterisation of Sun and Nadir Sensors for Attitude Control of Nano Satellites”- Mr. Asir Nesa Dass N, IIST
12:00 - 12:15

12:15 “Sky Watch Array Network (SWAN): Wide-band Receiver Instrumentation development and Current Status”- Mr. Raghavendra Rao K.B, RRI
“Sky Watch Array Network (SWAN): Wide-band Receiver Instrumentation development and Current Status”- Mr. Raghavendra Rao K.B, RRI
12:15 - 12:30

12:30 The Infrared Astronomy Group (IR group) of TIFR, Milind Naik
The Infrared Astronomy Group (IR group) of TIFR, Milind Naik
12:30 - 12:45
The Infrared Astronomy Group (IR group) of TIFR has been developing near-infrared (NIR) instruments for ground based Indian telescopes, far-infrared instruments for TIFR 100-cm balloon borne telescope and has recently developed space platforms via IRSIS　 & other projects. This talk will present an overview of NIR astronomical cameras developed by the IR group which have been commissioned / used at various observatories in India (e.g. IGO, IUCAA,Pune; MIRO, PRL, Mt Abu; HCT, IIA, Hanle, Ladakh and DOT, ARIES, Devasthal, Uttarakhand). TANSPEC Optical-NIR spectrograph is recently (April 2019) installed and commissioned at DOT 3.6 meter telescope. TIRSPEC NIR imager and spectrometer was commissioned at 2 meter HCT, Hanle in 2014 and is currently being used for science observations. TIRCAM2 NIR imager has been used at MIRO, IGO and is currently installed at the side port of DOT 3.6 meter telescope. Talk will also cover a briefoverview of the IRSIS related work.

12:45 “Low cost - 21cm observation on Sun from Kodaikanal Solar Observatory”-Mr. Manickavasagam G (SBM college of Engg. and Technology, Dindigul)
“Low cost - 21cm observation on Sun from Kodaikanal Solar Observatory”-Mr. Manickavasagam G (SBM college of Engg. and Technology, Dindigul)
12:45 - 13:00

13:00 Lunch Break
Lunch Break
13:00 - 14:00

14:00 “Engineering challenges in realization of Visible Emission Line Coronagraph on-board Aditya-L1”-Mr. Subramanya NagabhushanaIIA, Bengaluru
“Engineering challenges in realization of Visible Emission Line Coronagraph on-board Aditya-L1”-Mr. Subramanya NagabhushanaIIA, Bengaluru
14:00 - 14:30

14:30 "Brush arrangement for dome of 3.6m Devasthal optical telescope at ARIES”- Tarun Bangia, ARIES, Vaibhav Sharma, Zakir Husain College of Engineering & Technology, Aligarh Muslim University
"Brush arrangement for dome of 3.6m Devasthal optical telescope at ARIES”- Tarun Bangia, ARIES, Vaibhav Sharma, Zakir Husain College of Engineering & Technology, Aligarh Muslim University
14:30 - 14:45

14:45 “Design and development of mechanical systems of SUIT Payload onboard Aditya-L1”-Mr. Akshay Kulkarni, IUCAA
“Design and development of mechanical systems of SUIT Payload onboard Aditya-L1”-Mr. Akshay Kulkarni, IUCAA
14:45 - 15:00

15:00 “Design and Development of stress relieving support system for TMT primary glass blanks”-Mr. Alikhan Basheer, IIA, Bengaluru
“Design and Development of stress relieving support system for TMT primary glass blanks”-Mr. Alikhan Basheer, IIA, Bengaluru
15:00 - 15:15

15:15 “Design and Development of Telescope Cover Structure for 3.6m Telescope at ARIES”– Dr.Tarun Bangia, ARIES
“Design and Development of Telescope Cover Structure for 3.6m Telescope at ARIES”– Dr.Tarun Bangia, ARIES
15:15 - 15:30

15:30 Poster Presentation & Coffee/Tea Break
Poster Presentation & Coffee/Tea Break
15:30 - 16:00

16:00 “Radio Frequency Interference and its mitigation at upgraded GMRT”-Mr.Sureshkumar S. , NCRA-TIFR Pune
“Radio Frequency Interference and its mitigation at upgraded GMRT”-Mr.Sureshkumar S. , NCRA-TIFR Pune
16:00 - 16:15

16:15 “Testing a Multi-element, Multi-beam, FPA Beamformer in Freespace Test Range”- Ms Bela Dixit, GMRT, NCRA-TIFR
“Testing a Multi-element, Multi-beam, FPA Beamformer in Freespace Test Range”- Ms Bela Dixit, GMRT, NCRA-TIFR
16:15 - 16:30

16:30 Development of tools and methods to characterize low noise power supplies for the purpose of Astronomical instrumentation
Development of tools and methods to characterize low noise power supplies for the purpose of Astronomical instrumentation
16:30 - 16:45
Reducing power supply noise is one of the essential steps in order to implement precision and reliable instrumentation. However, commercial power supplies are usually insufficient for the purpose of astronomical instrumentation. They usually lack noise characterization over a range of frequencies and also over a range of applied load. In this regard, we have defined a method of estimating tolerable noise limits along with specific bandwidth and load limit requirements for various electronic components. We have developed tools such as DC constant current loads and active RC filters to test and measure the noise performance of off-the-shelf power supply modules. Finally, We have fabricated a range of old and modern voltage regulator architectures and compared their measured noise figures for the purpose of realizing a low noise (< 50 microVolt RMS) power supply. We will discuss the various methods of noise measurement using a modern digital oscilloscope and various techniques to reduce power supply noise.

16:45 “Accelerated Tile Processor”- Prabu T, RRI
“Accelerated Tile Processor”- Prabu T, RRI
16:45 - 17:00

17:00 Challenges in Designing a Digital Spectrometer for Detection of Signals from CD/EoR, Girish B. S, RRI
Challenges in Designing a Digital Spectrometer for Detection of Signals from CD/EoR, Girish B. S, RRI
17:00 - 17:15
Challenges in Designing a Digital Spectrometer for Detection of Signals from CD/EoR, Girish B. S, RRI

17:15 FPGA-based Focal Plane Array Beamformer Architectures for the Expanded GMRT
FPGA-based Focal Plane Array Beamformer Architectures for the Expanded GMRT
17:15 - 17:30
The Expanded GMRT (eGMRT) is a proposal to look at three expansions to the GMRT - increasing the field of view, increasing angular resolution and improving the sensitivity to the extended radio emission. In this talk, we would focus on increasing the field-of-view using Focal Plane Array (FPA) and the ongoing development of the FPGA-based prototype FPA beamformer. A prototype is being developed to understand the challenges in building real-time beamformer with multiple inputs and multiple beams. As part of this project, we have calculated the computational complexity of implementing FPA beamformer in real-time and the various tradeoffs at the architectural level. This tradeoff analysis helped in arriving at an optimal number of inputs, spectral channels, and beams for Virtex-5 FPGA. In case of an FPA system, the computation of beamformer weights through the correlation operation is only needed at distinct time intervals. This led to a further increase in the number of inputs for the same hardware setup, by separating the correlation and beamforming designs, and exploring FPGA reconfigurability. An alternate approach through a fully offline correlation design using recorded raw voltages would also be described. The current version of the multi-element, multi-beam design of the narrowband (32 MHz bandwidth, 16-input, 4-beam) and wideband (300 MHz bandwidth) beamformers have been developed using the CASPER (Collaboration for Astronomy Signal Processing and Electronics Research) methodology. The recent test results from the above- mentioned beamformer designs conducted in a free-space test range (at the GMRT site) would be described. As a step towards migration to contemporary signal processing platforms and the final prototype beamformer, we have started beamformer development using Xilinx RFSoC (RF System-on-Chip).

17:30 Coffee/Tea Break
Coffee/Tea Break
17:30 - 18:00

18:00 Ultra-Precision Engineering-Enabling human’s fundamental quest to decode the COSMOS - Sendhil Raja S. Ph.D., RRCAT
Ultra-Precision Engineering-Enabling human’s fundamental quest to decode the COSMOS - Sendhil Raja S. Ph.D., RRCAT
18:00 - 19:30

19:30 Dinner at ICNAPP
Dinner at ICNAPP
19:30 - 20:30

21:45 Invited Talks
Invited Talks
21:45 - 22:15
“Square Kilometre Array”-Y. Gupta, Director,NCRA