Cryogenic Engineering & Cryomagnet Technology Section

Publications/Awards

In Journals

  1. "Capacity enhancement of indigenous expansion engine based helium liquefier",
    Rajvir Singh Doohan, Pradeep Kumar Kush, and Govind Maheshwari,
    Materials Science and Engineering (MSE), IOP Conference Series: Materials Science and Engineering, vol. 171, 2017.

  2. "Exergy based optimization and experimental evaluation of plate fin heat exchanger",
    Rajvir Singh Doohan, Pradeep Kumar Kush, and Govind Maheshwari,
    Applied Thermal Engineering, Elsevier, vol. 102, pp. 80-90, 2016.

  3. "Experimental studies on pressure drop characteristics of cryogenic cross-counter flow coiled finned tube heat exchangers",
    Gupta P K, Kush P K, Ashesh Tiwari,
    Cryogenics, Vol. 50, no. 4, p. 257, April 2010.

  4. "Performance analysis and experimental results of cryogenic reciprocating expansion engine with helium gas",
    Rupul Ghosh, R S Doohan, R C Sharma, P K Kush,
    Indian Journal of Cryogenics, Vol. 35 No. 1-4, p. 258, 2010.

  5. "Assessment of thermal radiation load on cryopanel of refrigerator based cryopump",
    Gilankar S G and Kush P K, Indian Journal of Cryogenics,
    Vol. 35 No. 1-4, p. 77, 2010.

  6. "Indigenous development of coiled finned tube heat exchangers",
    Prabhat Kumar Gupta, P K Kush,
    Indian Journal of Cryogenics, Vol. 35 A, p. 437, 2010.

  7. "Experimental research on heat transfer coefficients for cryogenic",
    Gupta P K, Kush P K, Tiwari Ashesh, International Journal of Refrigeration,
    Vol. 32, no. 5, p. 960 - 972, June 2009.

  8. "Experimental verification of capture coefficients for a cylindrical cryopanel of closed cycle refrigerator cryopump",
    Gilankar S G, Kush P K,
    Journal of Physics: Conference Series, Vol. 114, p. 012058, 2008.

  9. "Validation and performance of the LHC cryogenic system through commissioning of the first sector",
    L Serio, A Bouillot, J Casas-Cubillos, A Chakravarty, S Claudet, F Gicquel, P Gomes, M Kumar, P K Kush, F Millet, A Perin, R Rabehl, M R Singh, M Soubiran, LTavian,
    Advances in Cryogenic Engineering, Vol 53, P 1411-1418, 2008.

  10. "Some critical aspects of designing the JT heat exchangers for helium liquefier/refrigerator",
    Gupta P K, Kush P K, Tiwari A ,
    Indian Journal of Cryogenics, Vol. 32, p. 142, 2007.

  11. "Second law analysis of counter flow cryogenic heat exchangers in presence of ambient heat-in-leak and longitudinal conduction through wall",
    Gupta Prabhat Kumar, Kush P K , Tiwari A,
    Int. Journal of Heat and Mass Transfer 50, 4754-4766, 2007.

  12. "Design and optimization of coil finned-tube heat exchangers for cryogenic applications",
    Gupta Prabhat Kumar, Kush P K , Tiwari A,
    Cryogenics 47, 322-332, 2007.

  13. "Status of indigenously developed closed cycle refrigerator based cryopump of 1000 Lit/s pumping speed",
    Gilankar S G, Kush P K,
    Indian Journal of Cryogenics, Vol. 32, p. 121, 2006.

  14. "Low cost vacuum valve for cryogenics applications",
    Sharma. R C.,
    Indian Journal of Cryogenics, Vol 30, No. 4, P 209, 2005.

  15. "Development of closed cycle refrigerator based cryopump",
    Gilankar S G and Kush P K, Indian Journal of Cryogenics,
    Vol 30, No. 4, P 204-208, 2005.

  16. "Development of cross-counter-flow heat-exchanger for cryogenic temperature range",
    Gupta Prabhat K, Sharma R C  and Kush P K,
    Indian Journal of Cryogenics, Vol 30, No. 4, P 201-203, 2005.

  17. "Test results of cryogenic reciprocating type expansion engine with nitrogen as process gas",
    Kush P K, Ghosh Rupul, Ghosh Parthasarthi, Sharma R C, Doohan R S.,
    Indian Journal of Cryogenics, Vol 29, No. 4, P 120-125, 2004.

  18. "Single Stage (30K) and Two Stage (10K) Gifford McMahon cryocoolers developed at CAT",
    Kush P K, Sharma R C, Doohan R S, Sagar A K, Choudhary L C and Ansari M S, Indian Journal of Cryogenics,
    Vol 29, No. 2, P 69-72, 2004.

  19. "Design of regenerators for Gifford McMahon cycle cryorefrigerator",
    P K Kush and M Thirumaleshwar,
    1084 − 1091, Vol 29, Cryogenics (1989).

In Conferences/ Symposia

  1. "Design improvements in liquid helium transfer line for vertical test stand",
    R S Doohan, Manoj Kumar, M S Ansari, A K Sagar,Om Prakash, K K Mahawar, S K Joshi and P K Kush,
    26th National Symposium on Cryogenics and Superconductivity (NSC-26), VECC, Kolkatta, February 22-24, 2017.

  2. "Development of cryostat for calibration of cryogenics temperature sensors",
    Rekhya Naik, A K Sagar, M S Ansari, Om Prakash, Sunil Kamthere, K K Mahawar, Vivek Nema, H K Patel, Ashish Shukla, R S Doohan, Manoj Kumar, B Duttagupta and P K Kush,
    26th National Symposium on Cryogenics and Superconductivity (NSC-26), VECC, Kolkatta, February 22-24, 2017.

  3. "Development of a cryomodule for beta 0.61, 650 MHz SCRF cavities at RRCAT",
    S Gilankar, P Khare, R Ghosh, A Jain, A Tiwari, A Lakshminarayanan and P K Kush,
    26th National Symposium on Cryogenics and Superconductivity (NSC-26), VECC, Kolkatta, February 22-24, 2017.

  4. "Design of 70 K thermal shield of a cryomodule for beta 0.61, 650 MHz SCRF cavities",
    A Tiwari, S Gilankar, P Khare, R Ghosh, A Jain, A Lakshminarayanan and P K Kush,
    26th National Symposium on Cryogenics and Superconductivity (NSC-26), VECC, Kolkatta, February 22-24, 2017.

  5. "Design and development of 2 Kelvin J-T heat exchanger",
    Rishi Kant Sharma, Prabhat Kumar Gupta and P K Kush,
    26th National Symposium on Cryogenics and Superconductivity (NSC-26), VECC, Kolkatta, February 22-24, 2017.

  6. "Safety system assessment of cold box for large capacity helium liquefaction system",
    Ashish Kumar Shukla, Hemat Kumar Patel, R S Doohan and P K Kush,
    26th National Symposium on Cryogenics and Superconductivity (NSC-26), VECC, Kolkatta, February 22-24, 2017.

  7. "Design of movable shield for the vertical test stand cryostat",
    Hemant Kumar Patel, Ashish Kumar Shukla,  S K Joshi, P K Kush,
    26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference, New Delhi, India, 2016.

  8. "Design of Horizontal Test Cryostat for Testing Two 650 MHz Cavities: Cryogenic Considerations",
    Khare P, Gilankar S, Kush P K, Lakshminarayanan A, Chaube R, Ghosh R, Jain A, Patel H, Gupta P D,  Hocker James A, Ozelis Joseph P, Geynisman Michael G, Reid Clark M, PoloubotkoValeri V, Mitchell Donald, Peterson Tom, Nicol Tom,
    26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference, New Delhi, India, 2016.

  9. "Cryogenic infrastructure at RRCAT for characterization of SCRF cavities at 2K",
    Manoj Kumar, B Duttagupta, Rajvir Singh Doohan, S K Joshi, A K Sagar, L Chowdhary, Rekhya Naika, Prabhat Kumar Gupta, Vivek Nema, Hemant Kumar Patel and Pradeep Kumar Kush,
    26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference, New Delhi, India, 2016.

  10. "Study of tube and tube heat exchanger for Helium purification",
    Vivek Nema, Rajvir Singh Doohan, and Pradeep Kumar Kush,
    26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference, New Delhi, India, 2016.

  11. "Cold box Vessel Design for Medium Scale Helium Liquefaction system",
    Ashish Kumar Shukla, Hemant Kumar Patel, Rajvir Singh Doohan, and Pradeep Kumar Kush,
    26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference, ICEC26-ICMC 2016, New Delhi, India, 2016.

  12. "Capacity enhancement of indigenously design and developed expansion engine based helium liquefier",
    Rajvir Singh Doohan, Pradeep Kumar Kush, and Govind Maheshwari,
    26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference, ICEC26-ICMC 2016 New Delhi, New Delhi, India, 2016.

  13. "Exergy analysis and experimental study of indigenously developed plate fin heat exchanger for 50 L/hr. Liquefier,"
    Rajvir Singh Doohan, Pradeep Kumar Kush, and Govind Maheshwari,
    National Symposium on Cryogenics, NSC-25, Hydrabad, India, 2015.

  14. "Operating experiences of vertical test stand for testing SCRF cavities at RRCAT Indore",
    Vivek Nema, S K Joshi, A K Sagar, L Chowdhry, Pawan Kumar & P K Kush,
    National Symposium on Cryogenics  (NSC-25), University of Hyderabad, Hyderabad, December 08 - 10, 2014.

  15. "Heat exchanger layout optimization for helium liquefier using UGNX",
    Hemant Kumar Patel, Ashish Kumar Shukla, Rajvir Singh Doohan, Pradeep Kumar Kush,
    National Symposium on Cryogenics (NSC-25), University of Hyderabad, Hyderabad, December 08 - 10, 2014.

  16. "Exergy analysis and experimental study of indigenous developed plate fin heat exchanger for 50 l/hr. helium liquefier",
    Rajvir Singh Doohan, P K Kush, Govind Maheshwari,
    National Symposium on Cryogenics (NSC-25), University of Hyderabad, Hyderabad, December 08 - 10, 2014.

  17. "Design, development and assessment of 50 l/hr reciprocating type expansion engine based helium liquefier",
    Rajvir Singh Doohan, P K Kush, Govind Maheshwari,
    National Symposium on Cryogenics (NSC-25), University of Hyderabad, Hyderabad, December 08 - 10, 2014.

  18. "Commissioning of vertical test stand facility for 2 K testing of superconducting cavities at RRCAT",
    S C Joshi, S Raghvendra, S Suhane, M Kumar, P Mohania, A Chauhan, P Fatnani, P Shrivastava, P K Kush and P D Gupta,
    27th Linear Accelerator Conference - 2014 (LINAC-2014), Geneva, Switzerland, August 31 - September 5, 2014.

  19. "New Technique and Result of Laser Welded SCRF Cavity Developed at RRCAT",
    P Khare, R Arya, J Dwivedi, R Ghosh, G Gilankar, C Gupta, P D Gupta, A Jain, S C Joshi, G V Kane, R Kaul, P K Kush, G Mundra, S M Oak, C K Pithawa, P Ram Sankar, S B Roy, V C Sahni, R S Sandha, P Shrivastava, B N Upadhyay (RRCAT), C A Cooper, C M Ginsburg, A Grassellino, C S Mishra, A M Rowe (Fermilab),
    16th International Conference on RF Superconductivity, Paris, France, September 22-27, 2013.

  20. "Design and indigenous development of helium liquefier and cryocoolers at RRCAT",
    P K Kush,
    Invited talk in DAE-BRNS Theme Meeting on Liquid Helium Plants, Cryogenic systems and their Applications, held at VECC, Feb 25-26, 2013.

  21. "Latest developments in cryogenic engineering and technology at RRCAT",
    P K Kush,
    Invited Talk in 24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  22. "Cryogenically economical frame bridge structure for horizontal test stand",
    Rajeev Chaube, Prashant Khare and P K Kush,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  23. "Comparative design evaluation of plate fin heat exchanger and coiled finned tube heat exchanger for helium liquefier in the temperature range of 300-80 K",
    Prabhat Kumar Gupta, Vivek Nema and P K Kush,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  24. "Process design study of 40 liters/hour helium liquefier",
    Prabhat Kumar Gupta and P K Kush,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  25. "Design and prototyping efforts towards development of a cryomodule for 650MHz SCRF cavities",
    P K Kush, Prashant Khare, S G Gilankar, Rupul Ghosh, Abhishek Jain, R Chaube, A. Lakshminarayanan, Yuri Orlov, Thomas J Peterson,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  26. "Design of a horizontal test stand for testing two SCRF cavities",
    P K Kush, Prashant Khare, S G Gilankar, Rupul Ghosh, Abhishek Jain, R Chaube, A Lakshminarayanan, Andy Hocker, Thomas J Peterson, Brian D Degraff, Ronak Patel,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  27. "Design of 2K cryostat for a cryo-thermometry investigation",
    Rajvir Singh Doohan and P K Kush,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  28. "Exergy analysis of indigenously developed reciprocating type cryogenic expansion engine based helium liquefier",
    Rajvir Singh Doohan, P K Kush and Govind Maheshwari,
    24th National Symposium on Cryogenics (NSC -24) at IPR, Ahmedabad, January 21-24 , 2013.

  29. "An Approach towards developing cryomodule for Indian SNS",
    Prashant Khare, Pradeep Kush, Shailesh Gilankar, Rupul Ghosh, Abhishek Jain, A Lakshminarayanan,
    presented at 2nd International Workshop on ADS and Thorium Utilization at BARC, Mumbai, December 11-14, 2011.

  30. "Indigenous development of helium liquefier",
    P K Kush, R S Doohan, Prabhat K Gupta, R C Sharma, Manoj Kumar and P D Gupta,
    presented at 2nd International Workshop on ADS and Thorium Utilization at BARC, Mumbai, December 11-14, 2011.

  31. "650 MHz Cryomodules for project X at Fermilab - requirements and concepts",
    Thomas Peterson, Mike Foley, Camille Ginsburg, Chuck Grimm, James Kerby, Yuriy Orlov, Fermilab, Batavia, IL 60510, USA  Rupul Ghosh, Shailesh Gilankar, Akhilesh, Jain, Prashant Khare, Pradeep Kumar Kush, A. Laxminarayanan, RRCAT, Indore, India,
    presented at 15th International Conference on RF Superconductivity (SRF2011), Chicago, USA, July 2011.

  32. "Indigenous Development of Helium Liquefier and Cyclic Refrigerators",
    P K Kush,
    ASET colloquium at TIFR, May 13, 2011.

  33. "Design efforts for cryomodule of 650MHz SCRF cavities at RRCAT",
    P Khare, P K Kush, S G Gilankar, V Jain, R Ghosh, A Jain, A Lakshminarayanan, T Peterson, C M Ginsburg, C Grimm, J Kerby and Y Orlov Fermilab,
    Proc. Indian Particle Accelerator Conference, 2011, New Delhi, Feb. 15 - 18, 2011.

  34. "Technical challenges in cryomodule design",
    Prashant Khare, Pradeep Kush, S G Gilankar, V Jain, R Ghosh, A Jain, A L Narayanan,
    Theme Meeting on Challenges of Mechanical Engineering for Superconducting Accelerators, VECC Kolkata, 25th-26th March 2011.

  35. "Design of Horizontal Test Stand (HTS-2) for SCRF Cavities at RRCAT",
    P K Kush, P Khare, S G Gilankar, V Jain, R Ghosh, A Jain, A Lakshminarayanan, A Hocker, V Poloubotko,
    Proc. Indian Particle Accelerator Conference, 2011, New Delhi, Feb. 15 - 18, 2011.

  36. "India’s first indigenously developed helium liquefier",
    P K Kush, R S Doohan, Prabhat K Gupta, R C Sharma, Rupul Ghosh, Manoj Kumar and P D Gupta,
    Proc. Indian Particle Accelerator Conference, 2011, New Delhi, Feb. 15 - 18, 2011.

  37. "Commissioning and first operation of superconducting links at the Large Hadron Collider (LHC)",
    R van Weelderen, T Goiffon, A Perin, C Darve, R S Doohan, S G Gilankar,
    Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC/ICMC 2009) Tucson, USA, June 28 -2 July 2, 2009.

  38. "Cryocooler vibrations in ultrafast reflection spectroscopy",
    Khan S, Ramachari, Oak S M, Ansari M S, Sagar A K, Chowdhry L, Doohan R S, Kush P K, National Conference on Recent Trends in Optoelectronics and Laser Technology (NCOLS 2007) ,
    Thiruvananthapuram, April, 9-11, 2007.

  39. "Indian participation in LHC, SPL and CTF-3 projects at CERN, Switzerland",
    Bhanage V P , Dwivedi J, Jain A K, Khare P, Kotaiah S, Kush P K, Kumar A, Prabhu S S, Puntambekar A M, Rawat A, Sahni V C, Sharma A K, Shridhar R, Shrivastava P, Singh G, Sadhu R K,
    Asian Particle Accelerator Conference - 2007 (APAC-07) , RRCAT, Indore , p. 829-831, Jan. 29 - Feb. 2, 2007.

  40. "Status of indigenously developed closed cycle refrigerator based cryopump of 1000 lit/s pumping speed",
    S.G. Gilankar and P.K. Kush,
    Twenty-first National Symposium on Cryogenics, NPL, New Delhi, November 22-24, 2006.

  41. "Performance of indigenously developed closed cycle refrigerator based cryopump",
    Gilankar S G and Kush P K,
    Proc. National Symposium on Vacuum Science & Technology and Its Application to Plasmas, IVSNS 2005.(P 157-160),  Nov. 16th-18th, 2005, IPR, Gandhinagar (Gujarat).

  42. "Approach towards establishing cryogenic test facility for SCRF cavities of proposed proton Linac at CAT",
    Prashant Khare, P K Kush and M G Karmarkar,
    11th Workshop on R F Superconductivity SRF 2003, Lubeck Germany, Sept. 8 − 12, 2003.

  43. "Analysis and performance prediction of Stirling cryogenerator",
    R Ghosh et al,
    Proceedings of joint Cryogenics Engineering Conference (CEC) and International Cryogenic Materials Conference (ICMC), Madison, Wisconsin, USA, July 16-20, 2001.

  44. "Cyclic analysis and experimental investigation of a single stage G M cryocooler",
    B Duttagupta, P K Kush and M D Atrey,
    Proceedings Eighteenth International Cryogenics Engineering Conference (ICEC18), 579, IIT Mumbai, Feb. 2000.

  45. "Numerical simulation and experimental investigation of tube-in-tube heat exchangers in 300 – 77 K range",
    Prabhat Gupta, P K Kush and M D Atrey,
    Proceedings Eighteenth International Cryogenics Engineering Conference (ICEC18), 303, IIT Mumbai, Feb. 2000.

  46. "Performance evaluation of a tube-in-tube heat exchanger in 300-77 K temperature range",
    Prabhat Gupta, R Ghosh, P K Kush and M D Atrey,
    Seventh National Symp. On Cryogenics, Feb. 19-21, 1999.

  47. "Experimental investigation on second stage regenerator of a two stage 10 K G-M cryorefrigerator",
    M D Atrey and P K Kush,
    Seventh National Symp. On Cryogenics, Feb. 19-21, 1999.

  48. "Development of helium compressor using oil injection in commercially available freon compressor",
    P K Kush,  U R Dubey  and  R C Sharma,
    Sixteenth national Symposium on Cryogenics, IIT Kharagpur, (Dec. 1997).

  49. "Development of 15 K two stage G-M cryocooler for continuous maintenance free operation",
    P K Kush and R C Sharma,
    Sixteenth National Symposium on Cryogenics, IIT Kharagpur, (Dec. 1997).

  50. "Effect of geometrical design parameters on the performance of coiled finned tube heat exchangers",
    M D Atrey and P K  Kush,
    Sixteenth National Symposium on Cryogenics, IIT Kharagpur, (Dec. 1997).

  51. "Development of liquid nitrogen based variable temperature gas purifier for excimer lasers",
    S G Gilankar and P K Kush,
    Sixteenth national Symposium on Cryogenics, IIT Kharagpur, (Dec. 1997).

  52. "Theoretical design of reciprocating expansion engine for 80 K and 20 K inlet temperature level",
    R Ghosh, M D Atrey and P K Kush,
    Sixteenth National Symposium on Cryogenics, IIT Kharagpur, (Dec. 1997).

  53. "Design of a lquid helium cryostat for mossbauer spectroscopy (4.2K − 300K)",
    Ratnesh Gupta, Ajay Gupta, M Thirumaleshwar and P K Kush,
    National Symp. On Vacuum Science and Technology, CAT Indore (Nov. 1991).

  54. "A G−M cycle cryorefrigrator operating at 10 K",
    M Thirumaleshwar, P K Kush, R C Sharma, K V Madhusudan, A Banerjee and M V Deverajan,
    International Cryogenics Engineering Conference (ICEC 12). Southampton, England, July 12-15, 1988.

Internal Reports/ Technical Notes

  1. "Development of 2 K Cryostat,"
    Rajvir Singh Doohan and Pradeep Kumar Kush,
    RRCAT News Letters, vol. 23, no. 2, pp. 11-12, 2010.

  2. "Measurement of Cryo-Cooler Vibrations",
    Salahuddin Khan, Rama Chari, S M Oak, M S Ansari, A K Sagar, L Chowdhary, R S Doohan and P K Kush,
    RRCAT Report/ 2007-05.

  3. "Design of a High Current D C Acceleration Tube",
    P K Kush and S S Ramamurthi,
    Internal Report – 87/CAT/EAP/81000/001/D.

  4. "Facility for vacuum Impregnation of Super Conducting Magnets",
    P K Kush, A Banerjee, C K Ramachandran, S C Bapna and M Thirumaleshwar, 
    Internal Report, BARC − 1315 (1986).

  5. Cryogenic Regenerators",
    P K Kush, S C Joshi and M Thirumaleshwar,
    Internal Report, BARC − 1301 (1986).

Awards

  1. DAE-ESET Group Achievement Award 2010:
    "Indigenous Development of Helium Liquefier".

  2. DAE-ESET Group achievement award 2010:
    "Development, manufacturing, testing and supply of superconducting corrector magnets" for Large Hadron Collider project , CERN .

  3. Prof. R Srinivasan Award for Low Temperature Physics/ Cryogenics (2011)
    – For successfully building the country’s first helium liquefier.

  4. DAE-ESET Group achievement award 2013:
    "Development and Commissioning of Vertical Test Stand Facility for Characterization of Superconducting RF Cavities at 2 K".
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