A housing has a longitudinally extending aperture and at least one internal, longitudinally extending groove. One or more XML schema files for associating to the spreadsheet workbook are obtained. The non-bus communication channel may be referred to as \u201cside-band. A device is incorporated within an armored rock detector to sense angular movements of the cutter boom and to correlate changes in gamma radiation to the angular movements, within selected energy ranges. The lamp bulb is secured to the movable holder and is disposed about the second end of the reflector.