A charged particle beam specimen inspection system is described. Using the extended microflow policer, an aggressive TCP flow ramps up to exceed the policer rate, setting a burst drop flag. The magnitude relation between the two reflectance ratios is such that the reflecting mirror has an inverse magnitude relation to that of the other reflecting mirrors. The tube 12, when inserted and capped into the trachea 20, allows air flow 22 through the normal anatomical passageway and allows the person to speak and swallow food easier. The IO cell can be used in parallel-to-serial, serial-to-parallel and shift register operations. A pole core portion which between each of the permanent magnets and an outer surface of the rotor core is provided with a plurality of pole slits.