In February, NPCIL had placed an order with Holtec Asia to supply HI-STAR transport casks to serve this new away-from-reactor storage facility. It also issued a call for tenders for the construction of a used fuel storage facility for the third and fourth units currently under construction at Kudankulam. NPCIL also recently awarded a contract, worth about Rs.500 crore, to the German pump manufacturer KSB Ltd for the supply of eight primary coolant pumps for units 5 and 6 at the Kaiga nuclear power plant in Karnataka. The deliveries of the pumps, including the electric motors and spares, are expected to begin in 2026. The contract is the second one on the company after the 2018 order for eight primary coolant pumps for Gorakhpur units 1 and 2 in Haryana. Hybrid magnet in China produces record-breaking steady field of 45.22 T On August 12, the hybrid magnet built by scientists of the Steady High Magnetic Field Facility (SHMFF) in Hefei, China, produced a steady field of 45.22 tesla (T), which is a world record for the highest steady magnetic field strength by an operational working magnet. The highest field strength achieved before this was 45 T in 1999, also with a hybrid magnet, at the National High Magnetic Field Laboratory (MagLab) in Florida, US. (The earth’s magnetic field is about 35 microtesla; the strength of a refrigerator magnet is a few millitesla; pulsed magnetic fields can be orders of magnitude greater than the steady field achieved in laboratories). MagLab and SHMFF employed different ways of creating a magnetic field in combination, hence hybrid: an outer superconducting ring and an inner resistive Bitter electromagnet. Bitter magnets, invented in 1933 and used to achieve very high magnetic fields, are made of circular conducting metal plates and insulating spacers stacked in a helical configuration. The record-breaking 45.22 T hybrid magnet is composed of a resistive insert nested in a superconducting outer ring with a bore of 32 mm. The graph shows the magnetic field strength contributions and record.
In February, NPCIL had placed an order with Holtec Asia to supply HI-STAR transport casks to serve this new away-from-reactor storage facility. It also issued a call for tenders for the construction of a used fuel storage facility for the third and fourth units currently under construction at Kudankulam.
NPCIL also recently awarded a contract, worth about Rs.500 crore, to the German pump manufacturer KSB Ltd for the supply of eight primary coolant pumps for units 5 and 6 at the Kaiga nuclear power plant in Karnataka. The deliveries of the pumps, including the electric motors and spares, are expected to begin in 2026. The contract is the second one on the company after the 2018 order for eight primary coolant pumps for Gorakhpur units 1 and 2 in Haryana.
Hybrid magnet in China produces record-breaking steady field of 45.22 T
On August 12, the hybrid magnet built by scientists of the Steady High Magnetic Field Facility (SHMFF) in Hefei, China, produced a steady field of 45.22 tesla (T), which is a world record for the highest steady magnetic field strength by an operational working magnet. The highest field strength achieved before this was 45 T in 1999, also with a hybrid magnet, at the National High Magnetic Field Laboratory (MagLab) in Florida, US. (The earth’s magnetic field is about 35 microtesla; the strength of a refrigerator magnet is a few millitesla; pulsed magnetic fields can be orders of magnitude greater than the steady field achieved in laboratories).
MagLab and SHMFF employed different ways of creating a magnetic field in combination, hence hybrid: an outer superconducting ring and an inner resistive Bitter electromagnet. Bitter magnets, invented in 1933 and used to achieve very high magnetic fields, are made of circular conducting metal plates and insulating spacers stacked in a helical configuration. The record-breaking 45.22 T hybrid magnet is composed of a resistive insert nested in a superconducting outer ring with a bore of 32 mm.
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