A MAGNETIC-TAPE RECORDING SYSTEM FOR NEUTRON TIME-OF-FLIGHT ANALYSIS

Technical Report · Tue Aug 01 04:00:00 EDT 1961

OSTI ID:4819038

Alexander, T K; Leng, J

A neutron time-of-flight analyzer consisting of a magnetic-tape system and a ferrite-core analyzer provides 16,200 channels capable of handling a counting rate of l00 c/s. The system consists of a recording station and an''off line'' reproducing and analyzing station including a 900-channel analyzer for fast sorting. The two magnetictape transports match the input counting rate to the speed of the analyzer making the whole system capable of handling the large number of channels, so that no backlog of data occurs at the input to the analyzer. The magnetictape transports handle 1 1/4 in. tape on which 24 tracks are recorded. The 24-bit words are recorded in NRZ code at a packing density of 250 words/in. The recording speed of the tape is 0.45 or 0.9 in./s and the reproducing speed is 30 in./s. Tbc system can handle 30 neutron detectors each with 270 time-of-flight channels. In addition, short target runs and background runs are interleaved on a time-sharing basis. Codes, automatically changed and written on the tape, enable the reproducer to separate the interleaved data. The last facility is part of a control system that ensures continuity between the recording and reproducing stations through codes written on the magnetic tape. (auth)

• Research Organization: Atomic Energy of Canada Ltd., Chalk River, Ont.
• NSA Number: NSA-16-001937
• OSTI ID: 4819038
• Report Number(s): CREL-1036; AECL-1322
• Country of Publication: Canada
• Language: English

Related Subjects

BACKGROUND
CONTROL SYSTEMS
DATA PROCESSING
EFFICIENCY
ENGINEERING AND EQUIPMENT
FERRITES
MAGNETIC MATERIALS
MAGNETIC TAPES
NEUTRON DETECTION
PULSE ANALYZERS
RECORDING SYSTEMS
TARGETS
VELOCITY