An airflow distribution control system for usage in a raised-floor data center comprises an under-floor partition with a controllable flow resistance and a sensor. In an exemplary embodiment, the discectomy instrument includes a handle, a rotary scraper, a barrel, a drive shaft, an outer sleeve and a retaining clip. The bricks or blocks are preferably assembled to each other with adhesive. The addition of a radiation body to the radiation detection device allows for radio-imaging of the container contents.