Prelims — INO vs JUNO
1. Neutrino — Key Facts
• Subatomic particle with no electric charge and tiny mass.
• Interacts very weakly with matter → hard to detect.
• Produced in sun, cosmic rays, nuclear reactors, supernovae.
2. India’s Project: INO (India-based Neutrino Observatory)
• Planned underground neutrino detector in Theni district, Tamil Nadu.
• Detector type: ICAL (Iron Calorimeter), ~50 kiloton.
• Aim: study atmospheric neutrinos and determine neutrino mass ordering.
• Status: Stalled for years.
• Reasons: environmental clearance delays, local protests, political resistance, poor project communication.
3. China’s Project: JUNO (Jiangmen Underground Neutrino Observatory)
• Location: Jiangmen, China.
• Detector: 20,000-ton.
• Purpose: high-precision measurement of neutrino oscillation and mass ordering.
• Status: Completed; first scientific results released.
• Large international collaboration (US, UK, Russia, France, Germany, India, Pakistan, Taiwan, etc.).
4. Key Contrast
• JUNO finished → producing results.
• INO stuck → no construction begun.
• India lost early lead in neutrino research; China moved faster with funding and execution.
