CONDYN; Polya model secondary electron spectra. [CDC6600,7600; FORTRAN IV]

Technical Report ·

OSTI ID:6236133

Dietz, L A; Sheffield, J C

The CONDYN program fits a Polya (negative binomial) frequency distribution to an observed secondary electron spectrum. Secondary-electron yields measured by a spectrometer are fit to the Polya statistical model by a nonlinear least squares technique. There are two basic assumptions in the Polya model: (1) the mean secondary-electron yield from each small, thin element of surface area of an ion-converter dynode follows a Poisson distribution, and (2) the frequency of these mean yields follows a gamma distribution.CDC6600,7600; FORTRAN IV; SCOPE 3.4 (CDC6600), SCOPE 2.1 (CDC7600); 16K (octal) words of memory.

• Research Organization: Knolls Atomic Power Lab., Schenectady, NY (USA)
• OSTI ID: 6236133
• Report Number(s): ANL/NESC-786; ON: DE83048786
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
C CODES
CDC COMPUTERS
COLLISIONS
COMPUTER CODES
COMPUTERS
DYNODES
ELECTRON EMISSION
ELECTRON MULTIPLIERS
ELECTRON SPECTRA
ELECTRON TUBES
EMISSION
FORTRAN
ION BEAMS
MEASURING INSTRUMENTS
PHOTOMULTIPLIERS
PHOTOTUBES
PROGRAMMING LANGUAGES
SECONDARY EMISSION
SPECTRA
SPECTROMETERS