A new concept of fusion neutron monitoring for PF-1000 device

• Autorzy: Jednorog S. , Laszynska E. , Bienkowska B. , Ziolkowski A. , Paduch M. , Szewczak K. , Mikszuta K. , Malinowski K. , Bajdel M. , Potrykus P.

Identyfikatory

DOI

10.1515/nuka-2017-0003

• Języki publikacji: EN

Abstrakty

EN

The power output of plasma experiments and fusion reactors is a crucial parameter. It is determined by neutron yields that are proportional and directly related to the fusion yield. The number of emitted neutrons should be known for safety reasons and for neutron budget management. The PF-1000 is the large plasma facility based on the plasma focus phenomenon. PF-1000 is operating in the Institute of Plasma Physics and Laser Microfusion in Warsaw. Neutron yield changes during subsequent pulses, which is immanent part of this type device and so it must be monitored in terms of neutron emission. The reference diagnostic intended for this purpose is the silver activation counter (SAC) used for many years. Our previous studies demonstrated the applicability of radio-yttrium for neutron yield measurements during the deuterium campaign on the PF-1000 facility. The obtained results were compared with data from silver activation counter and shown linear dependence but with some protuberances in local scale. Correlation between results for both neutron monitors was maintained. But the yttrium monitor registered the fast energy neutron that reached measurement apparatus directly from the plasma pinch. Based on the preliminary experiences, the yttrium monitor was designed to automatically register neutron-induced yttrium activity. The MCNP geometrical model of PF-1000 and yttrium monitor were both used for calculation of the activation coefficient for yttrium. The yttrium monitor has been established as the permanent diagnostic for monitoring fusion reactions in the PF-1000 device.

Słowa kluczowe

EN

dense plasma focus (DPF); PF-1000; neutron diagnostic; activation technique

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2017
• Tom: Vol. 62, No. 1
• Strony: 17--22
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Jednorog S.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Laszynska E.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Bienkowska B.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Ziolkowski A.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Paduch M.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Szewczak K.

• Central Laboratory for Radiological Protection, 7 Konwaliowa Str., 03-194 Warsaw, Poland

autor

Mikszuta K.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Malinowski K.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

autor

Bajdel M.

• Faculty of Physics, University of Warsaw, Warsaw, Poland

autor

Potrykus P.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland, Tel.: [phone](45), Fax: [phone]

Bibliografia

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• 2. Laszynska, E., Jednorog, S., Ziolkowski, A., Gierlik, M., & Rzadkiewicz, J. (2015). Determination of the emission rate for the 14 MeV neutron generator with the use of radio-yttrium. Nukleonika, 60(2), 319–322.DOI: 10.1515/nuka-2015-0040.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).