Abstract
A cryogenic liquid-tritium target was developed by RFNC−VNIIEF for studying ptμ fusion. In 2016, it was regularly used for more than 270 h on the muon channel of the JINR Phasotron, thus confirming the compliance with the specified requirements and the correctness of the proposed engineering solutions. At a maximum operating pressure of 4 MPa, an irradiated ampoule volume as large as 80 cm3, and three lines of protection, the target was able to liquefy up to 40 L of a hydrogen-isotope mixture and maintain a temperature in the range of 20−22 K with an accuracy of ±0.05 K or better. Based on the results of the ptμ‑fusion experiments, the reaction channel with the emission of electron−positron pairs was detected for the first time and evidence for the existence of a new reaction channel with the emission of a pair of γ-ray photons was obtained.
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ACKNOWLEDGMENTS
We express our deep gratitude to A.M. Demin, a former employee at RFNC−VNIIEF, who is currently on a well-deserved rest and who has made a great contribution to the preparation and conduction of this experimental study.
Funding
This work was supported by the Russian Foundation for Basic Research, grant no. 12-02-00089-a.
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Translated by N. Goryacheva
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Yukhimchuk, A.A., Maksimkin, I.P., Musyaev, R.K. et al. A Liquid-Tritium Target for Studying ptμ-Fusion Reactions. Instrum Exp Tech 62, 464–472 (2019). https://doi.org/10.1134/S0020441219040262
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DOI: https://doi.org/10.1134/S0020441219040262