It would be
unfortunate to call it laboratory frame, because in the common
interpretation of the cranking model, both the program and the
intrinsic frames rotate in the laboratory system. On the other hand,
the program and intrinsic frames do not move with respect to each
other - they differ only by the orientation of their axes.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.