Manufacture and Supply of Conical Stainless Steel Bodies Tender

• Country: Spain
• Summary: Manufacture and Supply of Conical Stainless Steel Bodies by Repulsing with Welding Without Filler to Obtain Anti-Implosion Covers for 20-Inch Photomultipliers for the Exp...
• EST Ref No: 132340132
• Deadline: 27 Jan 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: EUR 3395414
• Notice Type: Tender
• Document Ref. No.: 845379-2025
• Purchaser's Detail:
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• Description:
• Manufacture and supply of conical stainless steel bodies by repulsing with welding without filler to obtain anti-implosion covers for 20-inch photomultipliers for the exp... Within the framework of its research activity, the LSC participates in the international project Hyper-Kamiokande (HK), a new generation experiment aimed at the study of neutrinos, proton decay and other fundamental phenomena of particle physics. HK constitutes the evolution of the Kamiokande and Super-Kamiokande detectors, whose results were recognized with the Nobel Prize in Physics in 2002 and 2015 respectively. The Hyper-Kamiokande detector will be built at a depth of approximately 620 meters underground in the town of Kamioka (Japan). It will consist of a large cylindrical tank about 70 meters in diameter and 70 meters high, filled with ultrapure water, on whose walls tens of thousands of photomultiplier tubes (PMTs) will be installed. These detectors record the Cherenkov light produced when charged particles, such as neutrinos, interact with water. Each PMT operates under high vacuum conditions, and due to the high hydrostatic pressure to which they are subjected, equivalent to a water column of 70 meters, there is a risk of implosion in the event of spontaneous failure of any PMT. This phenomenon, which occurs in milliseconds, can generate a shock wave capable of damaging adjacent PMTs and compromising the integrity of the experiment. To mitigate this risk, the experiment design incorporates an anti-implosion protective cover composed of two main elements: a material dome...
• Documents:

 Tender Notice