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Solar energy is now the cheapest source of power worldwide, driving a massive shift toward renewables. Falling battery prices and innovations in solar materials are making clean energy more reliable than ever. Yet, grid congestion and integration remain key challenges. Experts say smart grids and sustained policy support are crucial to accelerate the transition.
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Radiation worker exposure
Print View Posted on: 07 October 2025
Event Date: 13 January 2025 Event Type: Irradiation/Accelerator Facility Event Location: Czech Republic, Nuclear Physics Institute, Praha INES Rating: 2 (Final)
On 13. 1. 2025, the lcencee reported a radiation emergency when an unplanned radiation exposure of a radiation worker occurred. The worker was in the radiation room with a source of ionizing radiation – the Chisostat SO 1 irradiator, which contained a sealed radionuclide source (“URZ”) Co-60 with an activity of 30TBq as of 13. 1. 2025. At the time of the preparatory work, the source was not in a shielded position. The total time the worker spent in the radiation room during 2 entries (7. 1. 2025 and 13. 1. 2025) was about 12.5 minutes.
The investigation found that the last time the irradiator was used on 18. 12. 2024, it was incorrectly turned off. The irradiator was turned off by the main circuit breaker (not via the main control console), therefore the source was not put into the shielded position. It was also found that the backup power source (UPC), which would ensure the insertion of the
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CDC updated updated its adult and child immunization schedules to apply individual-based decisions
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In-brief analysis
October 6, 2025
Data source: CME Group, Bloomberg L.P.
Note: 3Q25=third quarter of 2025
Crude oil prices were relatively stable in the third quarter of 2025 (3Q25), ending the quarter just 9 cents per barrel (b) less than they started, while refinery margins increased to their highest levels so far this year. In this quarterly update, we review petroleum markets price developments in 3Q25, covering crude oil prices and refinery margins.
Crude oil prices
The Brent crude oil price traded in a narrow range in 3Q25 as expected increased production from OPEC countries offset geopolitical tensions. The Brent price began the quarter averaging $70/b in July, following the Israel-Iran 12-day war at the end of 2Q25, before declining to an average of $67/b in August and $68/b in September.
OPEC+ announcements in July, August,
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