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Differential and angle-integrated cross sections for the Ca-40(n, alpha)Ar-37 reaction from 4.0 to 6.5 MeV

Author
Han JH IHIP, Peking University, China
Krupa Luboš, M.Sc. Ph.D. Institute of Experimental and Applied Physics CTU, JINR Dubna
et al.  different institutions

Year
2015

Scientific journal
European Physical Journal A, 51 (1), 12

Web


Abstract
Differential cross sections for the (40) Ca(n,) , and reactions are measured at neutron energies of 4.0, 4.5, 5.0, 5.5, 6.0 and 6.5MeV using a double-section gridded ionization chamber and two CaF2 samples. Monoenergetic neutrons were produced through the (2) H(d, n)(3) He reaction with a deuterium gas target. A BF3 neutron counter was utilized to normalize the neutron flux among different measurements. The absolute value of neutron flux was calibrated using a U-238 sample. Angle-integrated cross sections for the (40) Ca(n,) , and reactions are obtained from the integration of the differential data. Model calculations are performed using the TALYS-1.6 code and general agreement is achieved between measurements and calculations. Then the total Ca-40(n,)Ar-37 cross sections are derived from the angle-integrated cross sections combined with the code calculations. Present results are compared with existing measurements and evaluations.

Cite article as:
J. Han, L. Krupa, . et al., "Differential and angle-integrated cross sections for the Ca-40(n, alpha)Ar-37 reaction from 4.0 to 6.5 MeV", European Physical Journal A, 51 (1), 12 (2015)