Figure 8.
Figure 8. Schematic presentation of Bbarrels. Takig a
barrel as nonideal cylinder, a and b represent the
major and mior axes of the elliptical crosssection of the
arrel while h is the height. Angle 0 is the tilted angle
etween /lstrands and the barrel axis. A righthanded
arrel has < 90'' while a lefthanded barrel has fI > 90''.
