1024-Channel Neutron Time-of-Flight Analyzer

Abstract

A 1024‐channel time‐of‐flight analyzer for recording data obtained in neutron time‐of‐flight experiments has been placed in operation at the Argonne National Laboratory. Channel widths are adjustable from ½ μsec to essentially any higher value. The analyzer dead time is 16 μsec following each recorded count. The storage circuits may be divided into two sections for recording events detected by two separate counters. The analyzer may also be divided into four groups of 256 channels each. These groups may be independently located in any time region up to 4096×T, where T is the channel width in use. Readout is by means of simultaneous teletype punched tape and analog pen recording. There is a linear cathode ray tube display of counts vs channel number. The device uses a magnetic core memory system similar to that used in the 256 channel pulse height analyzer described in the preceding article.