Title :
A Computer P.H.A. System for Real Time off Line Analysis of Spectra from an Aerial Survey for Radioactive Minerals
Author :
Bristow, Q. ; Thompson, C.J.
Author_Institution :
Atomic Energy of Canada Limited, Commercial Products, Ottawa, Canada
Abstract :
A system for real time pulse height analysis of ¿ ray spectra recorded on magnetic tape in an aircraft is described. A pulse height to width converter is used to record pulses, whose original amplitudes are proportional to the ¿ ray energies, on magnetic tape. The stored pulse widths are subsequently fed into a Digital Equipment Corporation PDP-9 computer via an interface which digitizes the widths using high speed integrated circuit counting logic.
Keywords :
Aircraft; Computer interfaces; High speed integrated circuits; Logic circuits; Magnetic analysis; Minerals; Pulse circuits; Pulse width modulation converters; Real time systems; Space vector pulse width modulation;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1968.4324846
