During full power operation, channel B of Reactor Regulating System and channel E of Reactor Protective System were reading less neutron power than other channels. To match with other channels, gain of ion chamber amplifiers of these channels was increased and also manual correction on protective channel E was done. Linear neutron trip set-points from primary shutdown system and secondary shutdown system were decreased. No problem could be found in ion chambers and their associated circuitry. On further investigation during reactor shutdown water was found in ion chamber housing, which caused the low neutron power signal in channel B & E (channel B and Channel E, both ion chambers are in same housing). Justification: Unplanned bulk increase in reactivity could have been the possible initiator. Since no initiator occurred, Table-1 has been used for rating. The safety function availability was full, so the event rating comes to 0. But due to possibility of common cause failure (water ingress into other ion chambers also) the event has been uprated by 1.
The Pacific News Bulletin (since September 1986) and its predecessor Pacific Bulletin was published for the Nuclear Free and Independent Pacific (NFIP) Movement by the Pacific Concerns Resource Centre (PCRC), first based in Petersham (Australia) and later at Suva on the Fiji Islands. The NFIP movement grew out of the first regional Nuclear Free Pacific […]
On 29 June 2026, the Urenco Group issued a statement announcing that the UK Government formally requested the company to support its effort "to re-establish a nuclear fuel cycle for reactor fuel for defence purposes." The UK Government announced its intent to re-establish this program in November 2024. This announcement is part of a broader […]
The Netherlands has agreed to allow Urenco to be used for the British military nuclear program. This clears the way for uranium enriched by Urenco to be used in nuclear weapons. With his decision, Foreign Minister Berendsen (CDA Christen Democrats) is departing from the principle that civilian and military nuclear applications must remain strictly separate. […]
Behnam Raeesian is an internationally recognized visual artist and poster designer from Iran, known for bold political and cultural works. Through exhibitions, workshops, jury roles, and collaborations with cultural institutions worldwide, he has built a strong voice in contemporary political graphic design. His projects confront complex issues such as nuclear risk and technological impact, transforming […]
Everywhere you look, the nuclear industry’s hype machine is in overdrive. Goldman Sachs, Microsoft, and the UK government all tout small modular reactors as the silver bullet for climate change and energy security. Tech billionaires are hiring nuclear veterans. Wall Street is whispering about “round-the-clock power” for artificial intelligence data centers. For those old enough […]
