Multigroup method for calculating the spectrum of the neutron flux density of RBMK-1000

The article describes a method for calculating the spectrum of the multigroup neutron flux. The paper shows the basic rules and principles of multigroup calculation, presented the basic formulas. Just article shows the calculated neutron spectrum RBMK-1000 using multigroup method. The calculation is performed within the job of teaching and research students TPU

rac-12,14-Dicyclo­propyl-5,8,13,18,21-penta­oxapenta­cyclo­[13.8.0.02,11.04,9.017,22]tricosa-1(15),2(11),3,9(10),16,22(23)-hexa­ene

The mol­ecule of the title compound, C24H24O5, has crystallographic twofold symmetry, with the central O atom lying on the rotation axis. The dihedral angle between the best planes of the benzene rings fused to the oxepine fragment is 38.5 (1)°. The dioxine ring adopts a twist form with the ethyl­ene group C atoms deviating by 0.472 (5) and −0.248 (6) Å from the plane defined by the remaining ring atoms

Indication on the universal hadron substructure - constituent quarks

The universality of single-spin asymmetry on inclusive pi-meson production is discussed. This universality can be related to the hadron substructure - constituent quarks.Comment: 3 pages, 3 figures, references adde