A storage and retrieval system for Charged Particle Nuclear Reaction Data (CPND) has been designed and implemented. CPND is a typical case of raw data produced in scientific research activities. The system has the architecture of an inter mediate system which lies between an IR system and a Data Base Management System (DBMS). Data input to the system are coded by a "data language" of free format. A doubly inverted file structure is incorporated into the system for both information representation and indexing. The implications of this system in the context of scientific information systems in general is discussed.
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