A DYNAMIC DIGITAL DELAY GENERATOR FOR USE IN NEUTRON CHOPPER EXPERIMENTS

Technical Report · Thu Sep 15 04:00:00 EDT 1960

OSTI ID:4124578

Lopez, W M; Beyster, J R; Nather, R E; Walton, R B; Wood, J L

The substance of this paper was given in a talk at the American Nuclear Society Meeting in Chicago, June 15, 196O. From the experimental point of view, the simplest way to integrate a spectrum over the entire die-away history is to vary the phase relationship between the chopper window and the neutron burst from the accelerator in such a way that the chopper scans with equal probability all portions of the neutron die-away history in the assembly. The logical way to accomplish this variation in phase is to use the chopper window as a reference point in time and then to generate a variable time delay, based on the chopper angle, to trigger the accelerator. A transistorized instrument (the wobulator), designed to generate this variable delay, is described. (W.D.M.)

• Research Organization: General Atomic Div., General Dynamics Corp., San Diego, Calif.
• DOE Contract Number: AT(04-3)-167
• NSA Number: NSA-15-000328
• OSTI ID: 4124578
• Report Number(s): GA-1585
• Country of Publication: United States
• Language: English

Related Subjects

DIGITAL SYSTEMS
ELECTRONIC EQUIPMENT
ENGINEERING AND EQUIPMENT
FREQUENCY
NEUTRON SPECTROMETERS
NEUTRONS
SPECTRA
TRANSISTORS
WINDOWS