Abstract
Results of measurement of the mean neutron yield from plasma focus (PF) chambers filled with deuterium and deuterium–tritium are compared for various Mather-type and spherical PF devices at discharge currents in the range of 200−1000 kA. On the basis of the experimental results, an expression for the ratio of the neutron yields \({{\xi }_{{{\text{exp}}}}} = \left\langle {{{Y}_{{{\text{DT}}}}}} \right\rangle {\text{/}}\left\langle {{{Y}_{{\text{D}}}}} \right\rangle \) in the D + T and D + D reactions as a function of the discharge current is derived, according to which ξexp decreases from 150 to 110 (by ≈1.4 times) as the PF discharge current increases from 200 to 1000 kA. Assuming the beam–target mechanism of neutron generation in the PF, the ratio ξexp for D + T and D + D reactions is compared with the ratio σDT/σDD of the cross sections for the corresponding nuclear reactions at different mean energies of accelerated ions. Taking into account the mean energies of accelerated ions (~50–70 keV) determined from the measured space–energy anisotropy of neutron emission, it is suggested that the mean effective energy of accelerated D+ and T+ ions in the plasma beam formed in the pinch decay stage increases with increasing PF discharge current, which leads to a decrease in the ratio \({{\xi }_{{{\text{exp}}}}} = \left\langle {{{Y}_{{{\text{DT}}}}}} \right\rangle {\text{/}}\left\langle {{{Y}_{{\text{D}}}}} \right\rangle \) with increasing current.
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REFERENCES
L. Soto, C. Pavez, J. Moreno, J. Pedreros, and L. Altamirano, J. Phys. Conf. Ser. 511, 012032 (2014).
A. Tarifeno-Saldivia and L. Soto, J. Phys. Conf. Ser. 511, 012029 (2014).
N. V. Zav’yalov, V. V. Maslov, V. G. Rumyantsev, I. Yu. Drozdov, D. A. Ershov, D. S. Korkin, D. A. Molodtsev, V. I. Smerdov, A. P. Falin, and A. A. Yukhimchuk, Plasma Phys. Rep. 39, 243 (2013).
B. D. Lemeshko, Yu. V. Mikhailov, I. A. Prokuratov, A. N. Selifanov, T. S. Fatiev, and V. G. Andreev, Matter Radiat. Extrem. 2, 301 (2017).
S. H. Saw and S. Lee, Energy Power Eng. 2, 65 (2010).
M. J. Sadowski and M. Sholz, Nukleonika 1, 31 (2002).
V. V. Maslov, V. G. Rumyantsev, V. F. Basmanov, D. V. Budnikov, A. V. Garni, I. Yu. Drozdov, D. A. Ershov, D. S. Korkin, N. G. Makeev, D. A. Molodtsev, N. I. Moskvin, S. T. Nazarenko, O. N. Petrushin, A. P. Falin, and V. A. Yukhnevich, Instrum. Exp. Tech. 57, 131 (2014).
www.vniia.ru/eng/production/neitronnie-generatory/izmerenie-potoka-neitronov/tpivn61-tpivn111/tpivn61-i-tpivn111.php.
G. Audi, O. Bersillon, J. Blachot, and A. H. Wapstra, Nucl. Phys. A 729, 3 (2003).
S. Lee, Appl. Phys. Lett. 95, 151503 (2009).
Y. Akgun, A. S. Bolukdemir, E. Kurt, T. Oncu, and A. Alacakir, Plasma Dev. Oper. 17, 292 (2009).
M. Milanese, R. Moroso, and J. Pouzo, Eur. Phys. J. 27, 77 (2003).
R. Verma, R. S. Rawat, P. Lee, S. V. Springham, T. L. Tan, and M. Krishnan, J. Phys. D 42, 235203 (2009).
S. Lee, T. Y. Tou, S. P. Moo, M. A. Eissa, A. V. Gholap, K. H. Kwek, S. Mulyodrono, A. J. Smith, Suryadi, W. Usada, and M. Zakaullah, Am. J. Phys. 56, 62 (1988).
S. R. Moghadam and F. A. Davani, Rev. Sci. Instrum. 81, 073301 (2010).
J. Moreno, F. Veloso, C. Pavez, A. Tarifeno-Saldivia, D. Klir, and L. Soto, Plasma Phys. Controlled Fusion 57, 035008 (2015).
H.-J. Woo, K.-S. Chung, and M.-J. Lee, Plasma Phys. Controlled Fusion 46, 1095 (2004).
M. Zakaullah, A. Waheed, S. Ahmad, S. Zeb, and S. Hussain, Plasma Sources Sci. Technol. 12, 443 (2003).
F. Karami, M. V. Roshan, M. Habibi, R. Asadnejad, P. Lee, S. H. Saw, and S. Lee, IEEE Trans. Plasma Sci. 43, 2155 (2015).
M. S. Rafique, PhD Thesis (National Institute of Education Nanyang Technological University, Nanyang, 2000).
A. E. Dubinov and L. A. Senilov, Studies at Plasma Focus Devices in Developing Countries (RFYaTs-VNIIEF, Sarov, 2013) [in Russian].
R. Baghdadi, R. Amrollahi, M. Habibi, and G. R. Etaati, J. Fusion Energy 30, 72 (2011).
M. V. Roshan, R. S. Rawat, A. Talebitaher, P. Lee, and S. V. Springham, Phys. Plasmas 16, 053301 (2009).
Zh. G. Guo and M. Han, in Proceedings of the 13th International Conference on High-Power Particle Beams, Nagaoka, 2000, Paper PA-071.
F. Castillo, J. J. E. Herrera, J. Rangel, M. Milanese, R. Moroso, J. Pouzo, J. I. Golzarri, and G. Espinosa, Plasma Phys. Controlled Fusion 45, 289 (2003).
A. Singh, S. Lee, and S. H. Saw, Int. J. Mod. Phys. Conf. Ser. 32, 1460325 (2014).
M.-F. Lu, T.-C. Yang, M. Han, and S.-Z. Yang, in Proceedings of the 11th International Conference on High-Power Particle Beams, Prague, 1996, Vol. 2, p. 578.
H. Bruzzone, H. Acuna, and A. Clausse, Braz. J. Phys. 38, 117 (2008).
V. E. Ablesimov, Yu. N. Dolin, O. V. Pashko, and Z. S. Tsibikov, Plasma Phys. Rep. 36, 403 (2010).
C. S. Kueny, D. G. Flicker, and D. V. Rose, SNL Report No. SAND2009-6373 (Sandia National Laboratories, Albuquerque, NM, 2009).
S. T. Ong, K. Chaudhary, J. Ali, and S. Lee, Plasma Phys. Controlled Fusion 56, 075001 (2014).
M. A. Mohammadi, S. Sobhanian, and R. S. Rawat, Phys. Lett. A 375, 3002 (2011).
S. Sobhanian, M. A. Mohammadi, M. Golalikhani, M. Moslehi-Fard, and S. Khorram, Publ. Astron. Obs. Belgrade 89, 359 (2010).
A. R. Babazadeh, M. V. Roshan, H. Habibi, A. Nasiry, M. Memarzadeh, A. Banoushi, M. Lamehi, and S. M. Sadat Kiai, Braz. J. Phys. 32, 89 (2002).
E. J. Lerner, S. M. Hassan, I. Karamitsos, and F. von Roessel, Phys. Plasmas 24, 102708 (2017).
A. Link, C. Halvorson, E. C. Hagen, D. V. Rose, D. R. Welch, and A. Schmidt, AIP Conf. Proc. 1639, 23 (2014).
J. Zebrowski, M. J. Sadowski, K. Czaus, M. Paduch, and K. Tomaszewski, Czech. J. Phys. 54, 643 (2004).
L. Soto, C. Pavez, J. Moreno, M. Cardenas, A. Tarifeno, P. Silva, M. Zambra, L. Huerta, C. Tenreiro, J. L. Giordano, M. Lagos, C. Retamal, R. Escobar, J. Ramos, and L. Altamirano, Phys. Scr. T131, 013031 (2008).
H. Schmidt, in Proceedings of the Joint ICTP−IAEA Workshop on Dense Magnetized Plasma and Plasma Diagnostics, Trieste, 2010, Paper 2168-4.
T. Craciunescu, M. Curuia, M. Gherendi, S. Jednorog, M. Paduch, R. Prokopowicz, M. Scholz, S. Soare, and V. Zoita, Roman. Rep. Phys. 67, 1061 (2015).
M. Scholz, B. Bieńkowska, I. M. Ivanova-Stanik, L. Karpiński, A. Kasperczuk, R. Miklaszewski, M. Paduch, T. Pisarczyk, K. Tomaszewski, E. Zielińska, J. Kravarik, P. Kubes, A. Banaszak, L. Jakubowski, M. Sadowski, et al., Vacuum 76, 361 (2004).
D. A. Andreev, A. K. Dulatov, B. D. Lemeshko, Yu. V. Mikhailov, I. A. Prokuratov, and A. N. Selifanov, RF Patent No. 141449; application No. 2014108096 (2014).
H. R. Yousefi, S. R. Mohanty, Y. Nakada, H. Ito, and K. Masugata, Phys. Plasmas 13, 114506 (2006).
D. D. Ryutov, M. S. Derzon, and M. K. Matzen, SNL Report No. SAND98-1632 (Sandia National Laboratories, Albuquerque, NM, 1998).
M. S. Rafique, P. Lee, A. Patran, R. S. Rawat, and S. Lee, J. Fusion Energy 29, 295 (2010).
Plasma Accelerators, Ed. by L. A. Artsimovich, S. D. Grishin, G. L. Grozdovskii, L. V. Leskov, A. I. Morozov, A. M. Dorodnov, V. G. Padalka, and M. I. Pergament (Mashinostroenie, Moscow, 1973) [in Russian].
R. L. Gullickson and R. H. Barlett, X-ray Analysis for Electron Beam Enhancement in the Plasma Focus Device (Lawrence Livermore Laboratory, Livermore, CA, 1974).
G. I. Kir’yanov, Fast Neutron Generators (Energoatomizdat, Moscow, 1990) [in Russian].
L. Blumberg and S. I. Schlesinger, AEC Report No. AECU-3118 (United States Atomic Energy Commission, Office of Technical Services, Washington, DC, 1956).
B. D. Lemeshko, Yu. V. Mikhailov, and I. A. Prokuratov, Plasma Phys. Technol. Abstr., No. 1, 30 (2018).
B. D. Lemeshko, Yu. V. Mikhailov, and I. A. Prokuratov, VII Scientific−Technical Conference of Young Scientists “VNIIA-2013,” Nizhny Novgorod, 2013, Book of Abstracts, p. 52.
V. Raspa, P. Knoblauch, F. Di Lorenzo, and C. Moreno, Phys. Lett. A 374, 4675 (2010).
P. Knoblauch, V. Raspa, F. Di Lorenzo, A. Clausse, and C. Moreno, Radiat. Phys. Chem. 145, 39 (2018).
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Mikhailov, Y.V., Lemeshko, B.D. & Prokuratov, I.A. Experimental Dependence of the Neutron Yield on the Discharge Current for Plasma Focus Chambers Filled with Deuterium and Deuterium–Tritium. Plasma Phys. Rep. 45, 334–344 (2019). https://doi.org/10.1134/S1063780X19030073
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DOI: https://doi.org/10.1134/S1063780X19030073