the crystal is sectioned lengthwise and the composition and concentration in well-defined points, located at equal distances on the crystal axis
, using ICP/MS- LASER Ablation technique are analyzed.
Thus, we arrive at a new concept of the UCN production with SD2, setting a single crystal converter of ortho-deuterium in the exit beam of a cold neutron guide from a pulsed source, and rotate the crystal axis
synchronized to the time-of-flight spectrum of the incident cold neutrons.
Ancient stonecutters could thus cleave it perpendicular to the crystal axis
to produce hexagonal prisms of any desired length.
Figure 3a shows that spinning led to a rotation of this crystal axis