Mechanical design of the gamma blockers for the high-energy beam transport region of the European Spallation Source

• Autorzy: Wojciechowski Marcin , Szymczyk Karol , Wronka Sławomir

Identyfikatory

DOI

10.2478/nuka-2023-0010

• Języki publikacji: EN

Abstrakty

EN

The European Spallation Source (ESS) is a collaboration of 13 European countries to build the world’s most powerful neutron source for research. The project, situated in the south of Sweden, is approaching the end of the construction phase, and the fi rst scientifi c results are planned for 2023. This paper gives an overview of mechanical design of the gamma blockers (GBs) in the accelerator to target (A2T) and dump line (DmpL) sections. The presence of GBs in the beam line should limit the gamma radiation emitted from the activated tungsten target and beam dump to allow the safe access of the staff to the machine. The presented design allows for effi cient operation and the same shutting time independently of the vacuum status.

Słowa kluczowe

EN

European Spallation Source; ESS; gamma blocker; gamma radiation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2023
• Tom: Vol. 68, No. 3
• Strony: 77--80
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Wojciechowski Marcin

• National Centre for Nuclear Research Andrzeja Sołtana 7 St., 05-400 Otwock-Świerk, Poland

• https://orcid.org/0000-0002-2423-4077

autor

Szymczyk Karol

• National Centre for Nuclear Research Andrzeja Sołtana 7 St., 05-400 Otwock-Świerk, Poland

• https://orcid.org/0000-0001-9159-485X

autor

Wronka Sławomir

• National Centre for Nuclear Research Andrzeja Sołtana 7 St., 05-400 Otwock-Świerk, Poland

• https://orcid.org/0000-0003-3277-138X

Bibliografia

• 1. European Spallation Source. (2020). European Spallation Source. Retrieved May 2020, from https://europeanspallationsource.se/about.
• 2. Lee, Y., Eshraqi, M., Ghatnekar Nilsson, S., Levinsen, Y. I., Miyamoto, R., Molloy, S., Möller, M., Olsson, A., Shea, T. J., Thomas, C. A., & Wilborgsson, M. (2017). Working concept of 12.5 kW tuning dump at ESS. In Proceedings of the 8th International Particle Accelerator Conference (IPAC’17), Copenhagen, Denmark, 14–19 May 2017 (pp. 4591–4594). DOI: 10.18429/JACoW-IPAC2017-THPVA0 65.
• 3. Szymczyk, K., & Wronka, S. (2021). Gamma radiations calculations and gamma blocker design for the high energy beam transport region of the European Spallation Source. Nukleonika, 66(3), 99–102. DOI: 10.2478/nuka-2021-0014.
• 4. U. S. Department of Energy. (2010). Spallation neutron source fi nal safety assessment document for proton facilities. Available from https://conference.sns.gov/event/28/attachments/65/83/FSAD_Proton_Facilities.12102010.pdf.
• 5. Santoro, R. T., Azmy, Y. Y., Barnes, J. M., Drischler, J. D., Johnson, J. O., Lillie, R. A., & McNeilly, G. S. (1999). Spallation neutron source radiation shielding issues. Oak Ridge National Laboratory. https://www.osti.gov/servlets/purl/10411-umo8JR/webviewable/.
• 6. Borden, M. J., Chapman, C. A., Kelsey IV, C. T., O’Hara, J. F., & Sturrock, J. C. (2007). LANSCE failsafe radiation shutter design for isotope production facility. In Proceedings of PAC07, Albuquerque, New Mexico, USA (pp. 539–541).
• 7. Nomen, O., Brañas, B., Ogando, F., Arranz, F., Sauvan, P., & Castellanos, J. (2018). Lead shutter for the IFMIF LIPAc accelerator. Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equ., 901, 69–75. https://doi.org/10.1016/j.nima.2018.05.072.
• 8. Oak Ridge National Laboratory. (2017). Spallation neutron source second target station integrated systems update. ORNL. (ORNL/TM-2017/490).
• 9. Pal, G., Bandopadhyay, T., Nandi, C., Chatterjee, S., Ravishankar, R., Bhattacharya, S., Sengupta Mitra, M., Akhter, J., & Mishra, S. (2013). Note: Neutron shutter for Kolkata superconducting cyclotron. Rev. Sci. Instrum., 84, 056111. https://doi.org/10.1063/1.4807705.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).