Skip to main content

The neutrino opportunity (hindu )

Setbacks to the Neutrino Observatory show the need to garner public support for scientific research

India’s wait to join the elite club of countries undertaking neutrino research suffered a procedural delay in March this year when the National Green Tribunal (NGT) suspended the environmental clearance (EC) granted to the India-based Neutrino Observatory (INO), and ordered it to file a fresh application for clearance.

The proposed INO project primarily aims to study atmospheric neutrinos in a 1,300-m deep cavern in the Bodi West Hills in Theni district, Tamil Nadu. If completed, the INO would house the largest magnet in the world, four times more massive than the European Organization for Nuclear Research, CERN’s Compact Muon Solenoid (CMS) detector’s magnet. Neutrinos are tiny particles, almost massless, that travel at near light speeds. Born from violent astrophysical events such as exploding stars and gamma ray bursts, they are abundant in the universe, and can move as easily through matter as we move through air. They are notoriously difficult to track down. If you hold your hand towards the sunlight for one second, about a billion neutrinos from the sun will pass through it; this is because they are the by-products of nuclear fusion in the sun. These little wisps hold the blueprint of nature, which the INO project aims to use to understand some of the unsolved mysteries of the universe.


While the suspension of INO’s environmental clearance is a setback, the scientific community hopes these procedural lapses will be addressed in an earnest and time-bound manner. The initial hope of making INO up and running by 2012 did not work out as the Ministry Of Environment, Forests And Climate Change denied permission in 2009 to construct the INO on the edge of a prime elephant habitat. An alternative site in Bodi West Hills in Tamil Nadu was found, which got the approval in January 2015 and a new completion date was set for 2020. The NGT’s March 2017 order further delays the start of the project. Now the earliest conceivable completion date is projected as 2022. The INO will fall further behind other facilities including China’s Jiangmen Underground Neutrino Observatory (JUNO), expected to open in 2019.

While suspending the EC, the Southern Bench of the NGT noted that the General Conditions attached to Environmental Impact Assessment (EIA) Notification, 2006, and the amendment to it on June 25, 2014, clearly makes the INO project a Category A project. The NGT further observed that, as a Category A project, the INO’s proximity (4.9 kilometres) to the Mathikettaan Shola National Park required clearance under the Indian Wildlife (Protection) Act 1972, to be obtained from the National Board for Wildlife.

What it involves
The INO project also has its critics. Many argue, among other things, that the explosives used in construction are a threat to the highly sensitive ecology of the Western Ghats, and that the relevant radiation safety studies for carrying out the long baseline neutrino experiment in the second phase of INO have not been done. The proposed excavation is planned to be carried out by a controlled blast, limiting the impact of vibrations with the help of computer simulations. Additionally, building the INO involves constructing an underground lab accessed by a 2 km-long horizontal access tunnel, resembling a road tunnel. Such tunnels have been built extensively in India and the relevant studies show that the environmental impact (mainly dust and noise in the initial phase) have been managed. In the second phase, the INO project initially had planned to be set up as a far detector for the Neutrino Factory, which is a proposed particle accelerator. This may not be necessary because of the discoveries already being made in the field. Even if you build it, the radiation from the neutrino beam alone on an average would be one in 100 millionth of the natural radiation, which is negligible.

The procedural lapses and assumptions about the project’s agenda have made a project of this scale hard to bear fruit in India. Further, allegations such as neutrinos being radioactive particles and that the INO will double up the storage of nuclear waste have damaged the collaboration’s many years of outreach efforts. Any further delays could defeat the purpose of the project because similar projects elsewhere could undermine India’s efforts. For those who argue that ₹1,500 crore is a waste of money, it might be instructive to look back at the enormous achievements 20th century has brought in on the pillars of relativity and quantum mechanics.

Long history of research
Neutrino research has a long history in India. In the 1960s and 1970s, a group of scientists led by the Tata Institute of Fundamental Research detected some unusual experimental observations, the so-called Kolar events in the Kolar Gold Fields (KGF) in Karnataka. Half a century later, however, these events remain as science fiction, yet to be explained and unravelled. From the 1980s, neutrino enthusiasts discussed the possibility of a neutrino observatory located in India. In 2002, a document was presented to the Department of Atomic Energy which laid out an ambitious plan to establish the INO. Since then, fast-paced developments have taken place in neutrino physics. Consider this: more than half the Nobel Prizes in physics in the past 50 years have been awarded to basic research in particle physics; this includes the 2015 Prize for the discovery of neutrino oscillations. On January 5, 2015, the Union cabinet gave its approval to establish the INO at an estimated cost of ₹1,500 crore, the most expensive basic science project in India.

While public apprehensions in such projects are understandable, they also demonstrate that communication between the scientific community and the public needs to be more basic and democratic. For a country of young minds, we should generate sufficient public support for such high technology and science projects.

Comments

Popular posts from this blog

NGT terminates chairmen of pollution control boards in 10 states (downtoearth,)

Cracking the whip on 10 State Pollution Control Boards (SPCBs) for ad-hoc appointments, the National Green Tribunal has ordered the termination of Chairpersons of these regulatory authorities. The concerned states are Himachal Pradesh, Sikkim, Tamil Nadu, Uttarakhand, Kerala, Rajasthan, Telangana, Haryana, Maharashtra and Manipur. The order was given last week by the principal bench of the NGT, chaired by Justice Swatanter Kumar. The recent order of June 8, 2017, comes as a follow-up to an NGT judgment given in August 2016. In that judgment, the NGT had issued directions on appointments of Chairmen and Member Secretaries of the SPCBs, emphasising on crucial roles they have in pollution control and abatement. It then specified required qualifications as well as tenure of the authorities. States were required to act on the orders within three months and frame Rules for appointment [See Box: Highlights of the NGT judgment of 2016 on criteria for SPCB chairperson appointment]. Having ...

High dose of Vitamin C and B3 can kill colon cancer cells: study (downtoearth)

In a first, a team of researchers has found that high doses of Vitamin C and niacin or Vitamin B3 can kill cancer stem cells. A study published in Cell Biology International showed the opposing effects of low and high dose of vitamin C and vitamin B3 on colon cancer stem cells. Led by Bipasha Bose and Sudheer Shenoy, the team found that while low doses (5-25 micromolar) of Vitamin C and B3 proliferate colon cancer stem cells, high doses (100 to 1,000 micromolar) killed cancer stem cells. Such high doses of vitamins can only be achieved through intravenous injections in colon cancer patients. The third leading cause of cancer deaths worldwide, colon cancer can be prevented by an intake of dietary fibre and lifestyle changes. While the next step of the researchers is to delineate the mechanisms involved in such opposing effects, they also hope to establish a therapeutic dose of Vitamin C and B3 for colon cancer stem cell therapy. “If the therapeutic dose gets validated under in vivo...

What's ailing Namami Gange programme?(DTE)

Winters are extremely hectic for Sushma Patel, a vegetable grower in Uttar Pradesh’s Chunar town. Her farm is in the fertile plains of Ganga where people grow three crops a year. But this is the only season when she can grow vegetables. And before that, she needs to manually dig out shreds of plastic and wrappers from her one-hectare (ha) farm. “This is all because of the nullah,” she says, pointing at an open drain that runs through her field, carrying sewage from the neighbourhood to the Ganga. “Every monsoon, the drain overflows and inundates the field with a thick, black sludge and plastic debris. We cannot even go near the field as the stench of sewage fills the air,” she says. But Patel has no one to complain to as this is the way of life for most people in this ancient town. About 70 per cent of the people in Chunar depend on toilets that have on-site sanitation, such as septic tanks and pits. In the absence of a proper disposal or management system, people simply dump the faec...