Abstract: A spherical radiotherapy phantom for use with a source of radiation to receive a radiation dose distribution along a selected plane includes a spherical body comprising two hemispheres detachably connected together and comprising a solid homogenous material including a hollow compartment with a defined volumetric shape. A cartridge comprising a number of parallel planar plates, each configured to accommodate a planar radiation detecting medium and fitting together to form a shape corresponding to the defined volumetric shape of the hollow compartment, fits form fittingly in the hollow compartment when the two hemispheres are connected together.

Abstract: A spherical radiotherapy phantom for use with a source of radiation to receive a radiation dose distribution along a selected plane includes a spherical body comprising two hemispheres detachably connected together and comprising a solid homogenous material including a hollow compartment with a defined volumetric shape. A cartridge comprising a number of parallel planar plates, each configured to accommodate a planar radiation detecting medium and fitting together to form a shape corresponding to the defined volumetric shape of the hollow compartment, fits form fittingly in the hollow compartment when the two hemispheres are connected together.

Abstract: A transcription interface (10), connected to a general purpose digital computer (11) and a digital dictation recorder (20), for controlling various transcription functions and for automatically transferring information concerning dictation from the recorder (20) to an application program running on the digital computer (11). The recorder (20) generates a sequence of digitized dictation signals including a dictation segment and a digitized identification signal containing information corresponding to the dictation segment. The transcription interface (10) supplies an audio signal to an audio port (43) by converting the digital dictation signal to a signal that audibly reproduces the dictation for transcribing by a transcriptionist. The transcription interface (10) also formats the digitized identification signal to generate a message signal having a signal format compatible with the interface (10).

Abstract: A quonset type hut house unit includes a skeletal structure of a pair of "L" frame lengthwise base members with a multiplicity of vertical tubular members with an open top and bottom with a multiplicity of preformed steel arch shaped rib members with ends engaged in the vertical tubular members, end walls of reinforced plastic sections coupled together and to the skeletal structure through inwardly extending flanges and a cover sheet formed of a plurality of structured integral panels that include two face sheets spaced apart by a multiplicity of webs bent over the rib members and attached to the skeletal frame.