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Atomic Energy Regulatory Board
Niyamak Bhavan,
Anushakti Nagar,
Mumbai - 400094,India
Phone: +91-22-25990100,


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Date Topic Speaker
01 February 2012 The Fukushima Daiichi Accidents Shri Balraj Sehgal
He is an Emeritus Professor of Nuclear Power Safety at Royal Institute of Technology, Sweden. He is an expert on nuclear safety analysis and has a vast experience on nuclear safety. He is a member of two subcommittees of ANS on "Fukushima Accident".
Abstract: The Fukushima Accidents that occurred in March 2011 have cast a heavy shadow on the progress of Nuclear Power all over the World. These accidents have rightly renewed the debate about the suitability of Nuclear Power as one of the pillars for the electrical energy resource in the World. In this colloquium, speaker will describe the following topics related to the Fukushima accidents:
  • Introduction
  • Their progression and consequences
  • Immediate lessons learnt and recommendations
  • Some larger issues raised by these accidents for the nuclear enterprise all over the World
  • Some conclusions about future of Nuclear Power.
18 July 2011 Integrated Decision-Making using INSAG-25, US Safety Goals Shri Ashok Thadani, Chairman, Scientific Committee of the French Nuclear Safety Authority, ASN and Senior Advisor, USNRC
28 March 2011 Effect of Earthquake & Tsunami on NPPs at FUKUSHIMA, Japan vis-Ã -vis Safety Review of Indian NPPs

Events after Earthquake and Tsunami in NPPs at FUKUSHIMA, Japan
Shri A.D. Roshan, SSED, AERB

Shri A.P. Garg, OPSD, AERB
Abstract: The Technical Talk intend to give an overview of the events at NPPs at FUKUSHIMA, Japan that had taken place following earthquake and Tsunami on March 11, 2011
29 July 2010 Radiological Incident in Delhi Shri A. U. Sonawane, RSD, AERB
Abstract: In April, 2010 an unfortunate radiological incident occurred in metal scrap market in Mayapuri area of Delhi. The incident was caused by presence of radioactive material (cobalt-60) in metal scrap. The cobalt-60 source originated from an old gamma cell (made by Atomic Energy Canada Limited) which was un-authorizedly disposed off in scrap by one of the educational institutes of Delhi University (DU). The incident resulted in radiation over exposure to seven persons. These were medically treated in hospitals of Delhi. AERB, units of DAE, Crisis Management Group (CMG) of DAE and National Disaster Management Authority (NDMA) carried out detailed operation in the affected area of Mayapuri and recovered all the radioactive sources.

This talk addresses the description of the incident, the measures and the regulatory actions taken to prevent recurrence of such incident.
19 May 2010 ASME Sec. IX- Welding Qualifications Shri P.K. John, Technology Development Group, NPCIL
Abstract: The presentation addresses on the Organisation of ASME Sec.-IX, Code requirement related to welding procedure qualifications, Code requirements related to welder performance qualifications, ASME grouping of materials and welding consumable and documentation. The talk will be very useful to personnel involved in safety review of nuclear projects, specially, regulatory inspection of NPPs.
04 March 2010 Fuel Management Aspects of Light Water Reactors (LWRs) Shri A. Ramakrishna, ITSD, AERB
Abstract: The talk addresses the core fuel management aspects of Pressurized Water Reactors (PWR). The presentation includes comparison with Pressurized Heavy Water Reactors (PHWR), wherever applicable.
17 September 2009 Technical Presentations by AGFS Fellows

  • Experimentation and Modeling of Passive Decay Heat Removal System in Nuclear Reactors
  • Thermodynamic Database for Phase Stability Calculations Pertaining to P91 Steels and its Derivatives
Shri Prasad S. Wani

Shri J. Christopher
21 May 2009 "TRIVENI" - A Computer Code For Core Simulations of PHWR Smt. Reeta Malhotra, ITSD, AERB
Abstract: The talk addresses the description and the features of "TRIVENI" Computer Code which is used extensively in the Design, Commissioning and Operation of PHWRs for core simulations. The experience with the Code and scope for modifications will also be addressed.
23 April 2009 How the "Internet" Works? Shri V.P. Gholap, ITSD, AERB
Abstract: The talk addresses the basic structure of today's Internet, the information delivery process, basic terminolgy used in the Internet and do's and don'ts while accessing the Internet.
13 April 2009 Commissioning Aspects for Pressurized Water Reactors Shri D. Bhattacharya, NPSD, AERB
Abstract: Pressurised Water Reactors (PWR) are the backbone of most of the Nuclear Power Plants being operated in the world. However, PWR technology is an emerging technology in the Indian context. PWR technology is expected to be widely used in India in future. Two Pressurised Water Reactors (PWR) based NPPs are in advanced stage of construction at Kudankulam (KK-NPP) and will be commissioned shortly. Design safety review of the reactors has been carried out by AERB. The next important phase for KK-NPP is Commissioning. This technical talk will cover the Commissioning aspects of PWR based NPPs in general and regulatory requirements during Commissioning.
13 February 2009
  • Introduction to Incore Monitoring System in Kudankulam Reactors
  • Algorithms to Calculate Linear Heat Generation Rate (LHGR) and Departure from Nucleate Boiling Ratio (DNBR) in Kudankulam Reactors
Shri Y. K. Pandey, Light Water Reactor Design Group, NPCIL
Abstract: The presentation gives the details of algorithms used to calculate the Linear Heat Generation Rate (LHGR) and Departure from Nucleate Boiling Ratio (DNBR) for VVER-1000 reactors of Kudankulam NPP. The presentation also describes the monitoring of Kudankulam core using SPND signals from In Core Monitoring System (ICMS) and transforms these readings to evaluate the core parameters, viz., LHGR and DNBR.
02 December 2008 EPR, AP1000 and VVER1000

  • Brief design description of EPR) --- Utkarsh
  • Brief design description of AP 1000
  • Key issues and areas where further assessment is required
  • EPR and VVER Comparison
  • NS R 1 requirements in containment and how they are met in VVER and EPR and PHWR 7000
  • Phenomena, Methodology and Issues of Regulatory Importance in the new Reactors
  • Utkarsh
  • Arunan
  • Koley
  • Roshan and Koley
  • Roshan
  • Srivasista & Gupta
22 August 2008 Convention on Nuclear Safety Shri R. Venkataraman, Director, OPSD, AERB

Shri Deepak Ojha, SO/F, OPSD, AERB

Shri J. Koley, SO/F, OPSD, AERB
27 March 2008 Radiation Therapy of Tumors by Heavy Ions and Associated Radiation Protection Dr. Klaus Henrichs, Germany
Abstract: Within the last two decades not only photon radiotherapy has rapidly developed, but also particle therapy with Protons, Helium and Carbon ions has gained increasing interest. The primary rationale for radiotherapy with heavy charged particles is sharp increase of dose in a well-defined depth (Bragg peak) and the rapid dose fall-off beyond that maximum. The heavy ion therapy is more effective than conventional photon beams in attacking some types of tumors, because they share physical properties of superior dose distribution, which allows selective irradiation of the tumor and minimized irradiation of the surrounding normal tissues. In addition, heavy ions produce an increased density of local energy deposition with high-LET components, resulting in high biological effects. The results of clinical study on heavy-ion therapy have shown that carbon ion therapy has the potential ability to provide a sufficient dose to the tumor with acceptable morbidity in the surrounding normal tissue.
The talk will highlight on advantages of heavy ion therapy and associated radiation protection problems.
11 March 2008 On-line e-Training for Continuous Improvement at Rapid Pace Dr. Mihir K. Das, Professor of Mechanical and Aerospace Engineering, California State University, USA.
Abstract: Designing an e-learning program needs a totally different mindset where the program developer puts himself/herself on the e-learner"s shoes. Unfortunately, quite a few popular myths are in vogue such as E-learning is easy for instructors; E-learning is merely using "electronic books"; Content cramming leads to more efficient e-learning; E-learning is a just a series of embedded hyperlinks; E-learners learn less because of wide spread plagiarism and more. In this talk, the speaker will emphasize the positive developments in the field of e-learning.
05 February 2008 NAPS-1 Criticality and Phase-B Experiments after Enmasse Coolant Channel Replacement (EMCCR) works A. Ramakrishna, ITSD, AERB
Abstract: NAPS-1 achieved criticality on 6th January 2008 after EMCCR works and subsequently, completed all Phase-B low power experiments on 7th January 2008 successfully. Prior to this criticality, NAPS-1 encountered problems due to high g-fields and startup monitoring instrumentation. This talk would address the chronological sequence of events on the approach to criticalities and low power experiments.
09 January 2008 BEST ESTIMATE METHODS IN LICENSING Mr. Francesco D. Auria, University of Pisa
Abstract: The current efforts to assure stable, safe and competitive operation of nuclear power plants go together with advances made in accident analysis domain where the deterministic safety analyses are an important instrument for confirming the adequacy and efficiency of provisions for the safety of nuclear power plants. Recently made advances offer two acceptable options for demonstrating that the safety is ensured with sufficient margin: use of best estimate (BE) computer codes either combined with conservative input data or with realistic input data but associated with evaluation of uncertainty of results. Before current BE computational tools were available only conservative licensing calculations with conservative codes were performed. The BE analyses allow a realistic view of existing margins or limits on nuclear power plant operation consequently offering a basis for possible parameter optimisations. Main use of the BE of safety analysis is expected in applications for design and licensing purposes, both for new reactor projects as well as for periodic safety reviews, safety upgrading, power up-rating and lifetime extension of existing nuclear power plants. The BE tools are already widely used by the regulatory organization, research institutes and in many cases by the industry, the utilities and the vendors. There are already a number of IAEA guidance documents dealing with qualified use of advanced computational tools for safety analysis.
17 October 2007 CORAL Operations: Stepping-Stone For Fast Reactor Fuel Reprocessing Technology R. Natarajan,Group Director, Reprocessing Group, IGCAR, Kalpakkam
Abstract: The reprocessing of spent fuel from Fast Breeder Test Reactor (FBTR) has been successfully demonstrated in the pilot plant, CORAL (COmpact Reprocessing facility for Advanced fuels in Lead shielded cell). Since commissioning in 2003, spent mixed carbide fuel from FBTR of different burnups and varying cooling period,
have been reprocessed in this facility. Reprocessing of the spent fuel with a maximum burn up of 100 GWd/t has been successfully carried out so far.
The feedbacks from these campaigns with progressively increasing specific activities have been useful in establishing a viable process flow sheet for reprocessing the Prototype Fast Breeder Reactor (PFBR) spent fuel. Also, the design of various equipments and processes for the future plants, which are either under design for construction, namely, the Demonstration Fast Reactor Fuel Reprocessing Plant (DFRP) and the Fast reactor fuel Reprocessing Plant (FRP) could be finalized.
03 August 2007 Recent Developments in Radiobiological Research: Implications to Human Health Risk and Radioprotection Dr. K. P. Mishra, Ex-Head, Radiation Biology Health Sciences Division, BARC
Abstract: Biological effects of ionizing radiation have witnessed growing research interests in the past decades because of the increasing use of nuclear technology applications. Radiation effects are mediated by chemical alterations in the critical cellular structures and molecules. Radiation kills cells at high doses but causes subtle alterations at sub-lethal doses leading to heritable effects and induction of cancer. Continued research has provided vital information on the mechanism of cellular radiation damage but many questions have remained unanswered. For instance, mechanism of radio-carcinogenesis, radiation dose-effect relationship, mechanism of radio sensitivity, radiation hereditary effects etc continue to pose challenging questions. Recent advances in radiobiological research have demanded paradigm shift in our viewpoint. The questions of radiation risk to human health and standards for radiation protection are under active re-examination by the international scientific bodies such as ICRP, UNSCEAR. This talk will present emerging new perspectives in radiobiology with implications to risk assessment and radioprotection standards for human health
12 July 2007 Effective Communication Techniques Shri R. Bharthan, RRMD, BARC
04 May 2007 FIFTY YEARS OF RADIATION PROTECTION Shri G.Venkataraman, Former Head, Radiation Protection Services Division, BARC
Abstract: The talk focuses on the development of radiation protection measures in medical, industrial and research applications of radiation during the last fifty years. It is believed that the beginnings of radiation protection in India are to be traced to an order issued by Dr. H.J. Bhabha to provide film badge service to TIFR, which was handling Ra-Be source. The humble beginnings of providing film badge services paved the way to the birth of Division of Radiological Protection, which covered all areas of radiation safety till AERB came into existence. The talk recollects the early experiences, many of which may be of historical importance. In the earlier era of diagnostic radiology, fluoroscopy was the main mode of clinical examination due to difficulties in importing films. In Radiation Oncology, Brachytherapy was playing a major role with Radium as a source. Presently, these have been replaced by manual and remote after loading devices, which reduce personnel doses as well as loss of radioactive material. In Nuclear Medicine, Tc-99m has replaced the traditional I-131 with superior dosimetric and safety characteristics. In industrial radiography, remotely operated cameras have replaced torch type exposure devices. The talk recounts some of the radiation incidents, as well as valuable lessons learnt.
17 April 2007 1. Radiobiological basis of ICRP Recommendations.

2. Highlights of current ICRP Recommendations.
Dr. B.S. Rao, Former Head, RPAD, BARC
27 February 2007 The Ecstasy And Agony Of Two Alpha Emitters Ra & Pu Shri A. R. Sundarajan, Former Director, RSD, AERB
Abstract: This talk will give an historical account of the early unscrupulous and sometime scandalous exploitation of two highly radioactive elements radium and plutonium soon after their discoveries. Once the therapeutic value of radium was demonstrated, it was indiscriminately used not only by medical doctors but also quacks. Then we had the classic and tragic case of radium dial painters. Without the safety standard developed from the legacy of Ra dial painters, tens of thousands of American"s atomic bomb workers might have been exposed to dangerously high levels of Pu. In order to catch up with the USA in the race for the fissile material, Soviet Union embarked on building rapidly a large-scale weapon centre known as Mayak facilities. Partly because of the lack of knowledge and mostly because of the cold war pressures, the operation of these facilities was far from safe, resulting in exposures to large number of workers and population. Russian experience in the operation of Mayak reprocessing facilities provides important lessons to the reprocessing, waste management and health physics communities A wide range of radiation doses both external and internal delivered at low dose rate, makes the cohort of Mayak"s workers potentially important for the purpose of radiation risk assessment. The radiation exposures of Techa river residents downstream of Mayak surpass the Hiroshima/ Nagasaki experience to provide quantitative estimates of the risks of chronic low-dose rate exposures for an unselected general population. Unlike the Hiroshima-Nagaski case, the dose rates here cover the full range of exposures relevant to radiation protection.
15 December 2006 Right to Information Act, 2005 Shri A. Ramakrishna, SO/H, ITSD, AERB
Abstract: The talk addresses some of the aspects on the background of Right to Information Act - 2005, important objectives, processing of applications under RTI and the Implementation.
25 September 2006 Technology Independent Safety Criteria for Indian Nuclear Power Plants (NPPs) Based on New Designs Dr. S.K. Gupta, Director, SADD, AERB
31 August 2006 Surveillance Requirements and Safety Issues for Reactor Pressure Vessel (RPV) of VVERs. Dr. Milan Brumovsky, Nuclear Research Institute, Czech Republic
28 July 2006 Awareness Programme on ISO-9001: 2000 Shri K. Ram Prasad, IPSD, AERB
Abstract: In this, Introduction to ISO, Concepts of Quality Management System (QMS), Applicability to AERB, Documentation and Implementation of ISO will be presented for the benefit of all AERB Staff.
07 February 2006 MAKING AN EFFECTIVE PRESENTATION Prof. S.P. Sukhatme, Ex-chairman, AERB
Mr. Andrew White, Director RSD, AECL
Mr. Sukho Lee, SAS/NSNI, IAEA
Mr. R. Jaitley, Manager, Lepreau Refurbishment PSA and Safety Analysis, AECL
Mr. Young Ho. Jin, KAERI, Republic of Korea
30 September 2005 Advances in Seismic Design and Requalification of Nuclear Facilities using Passive Control Devices Dr. G. R. Reddy, Reactor Safety Division, BARC
Abstract: There are basically two design approaches for reducing earthquake damage to structures, equipment and piping: Seismic resistance based design and Seismic Response Control Design approaches. In the former approach, the strength of the system is increased to resist the earthquake loads. The system plays major role to resist earthquake loading. In the seismic response control design using active and passive response control devices without increasing the strength of the system controls the response of the system. Passive control devices are more reliable and economical compared to active response control devices. In this talk, an overview of the passive devices used for seismic response control of structures, equipment and piping of nuclear facilities will be presented. Details of design and tests performed on passive devices such as isolators, Elasto-Plastic Dampers (EPDs), Lead Extrusion Dampers (LEDs), Friction Dampers and Tuned Liquid Dampers will be presented. Details of the design and requalification of structures, equipment and piping supported on these devices will also be presented.
28 April 2005 TSUNAMI AND ITS ASSOCIATED HAZARDS Dr. P.C. Basu, Director, CSED Atomic Energy Regulatory Board
Abstract: The phenomenon we call "tsunami" (soo-Nah-nee) is a series of travelling ocean waves of extremely long length generated by disturbances associated primarily with earthquakes occurring below or near the ocean floor. Underwater volcanic eruptions and landslides can also generate tsunamis.

On 26th December 2004 an earthquake of magnitude 9.3 created a worldwide tsunami causing havoc in Indonesia, Sri Lanka and parts of India. The death toll due to this event exceeded that caused by any other natural hazards in recent times. The talk adresses the causes of tsunami, its propagation mechanism, and behaviour as tsunami reaches shore. It also briefly covers the effect of recent tsunami on Indian nuclear power plants, coastal region of India and the provisions existing in AERB codes against coastal flooding including tsunami.
21 April 2005 SPECIAL LECTURE ON ATOMIC ENERGY (RADIATION PROTECTION) RULES, 2004 Dr. K.S. Parthasarathy, Former Secretary, AERB
17 January 2005 HEALTH MONITORING OF CONCRETE STRUCTURES Prof. S.P. Shah, Director, ACBM North Western University, Illinois, USA
Abstract: The technological progress of the last decades has brought a tremendous change to many fields of the civil engineering sciences. A representative indicator is the development of numerous sophisticated techniques for nondestructive testing of cementitious materials. There is a variety of methods available that have specialized in testing concrete at different ages. First, the presentation will focus on methods for testing of concrete at early ages. In that category sound wave propagation, dielectric, maturity and nuclear magnetic resonance methods will be discussed. Out of these methods, ultrasonic reflection and transmission techniques will be detailed concerning their area of application, effectiveness and potentials. Second a more general overview about several nondestructive techniques covering the testing of later age concrete will be given. This part will address techniques based on acoustic emission, surface wave propagation and digital image correlation. The presentation will emphasize the transfer of the nondestructive test methods from laboratory use to practical application.
Abstract: Mastering the thorium fuel cycle in all its aspects is imperative for assuring long-term sustainability of nuclear power program in our country. The talk will address various physics related issues of the thorium fuel cycle with particular reference to Advanced Heavy Water Reactor (AHWR).
Starting with the basic design criteria of AHWR, the evolution of the lattice and core concepts will be summarised. Relevant physics design and safety aspects of AHWR and PHWR will be compared with respect to the current status of AHWR design.
The programe of validation of nuclear data and simulation models in the critical facility under construction in BARC will also be discussed.
05 October 2004 SAFETY IN MARITIME TRANSPORTATION OF HAZARDOUS MATERIALS Shri M.V. Ramamurthy, Sr. Vice President (Shipping), Reliance Industries Limited
17 May 2004 REFURBISHMENT AND SAFETY UPGRADATION OF CIRUS FOR LIFE EXTENTION Shri S. Sankar, Director, Reactor Group, Bhabha Atomic Research Centre
Colloqium/Technical Talks