ABSOLUTE MEASUREMENT OF PARTICLE FLUX DENSITY OF FAST ELECTRONS WITH A FARADAY CUP

Journal Article · Fri Jun 01 00:00:00 EDT 1962 · Nuclear Instr. & Methods

DOI:https://doi.org/10.1016/0029-554X(62)90095-2· OSTI ID:4790842

Kretschko, J; Harder, D; Pohlit, W

A method for the absolute measurement of the particle flux density of fast electrons with a Faraday cup device is described. The Faraday cup consists of a graphite cylinder for the total absorption of electrons up to 35 Mev. The charge of electrons collected in a given time interval by the graphite absorber is measured absolutely by a chargecompensation method (accuracy better than 0.5%), and from this the particle flux density is determined. The corrections for deficient absorption, ionization in the remaining gas, backscattering of electrons, production of bremsstrahlung, emission of secondary electrons from the window of the Faraday cup, and the influence of the radiation background are accurately determined for electron energies from 10 to 25 Mev. Hence the total error of the measurement of the particle flux density with this device is about 1%. (auth)

• Research Organization: Max-Planck-Institut fur Biophysik, Frankfurt am Main
• NSA Number: NSA-16-029147
• OSTI ID: 4790842
• Journal Information: Nuclear Instr. & Methods, Vol. Vol: 16; Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ENGINEERING AND EQUIPMENT
ABSORPTION
BREMSSTRAHLUNG
CORROSION
CORROSION PROTECTION
ELECTRON BEAMS
ELECTRONS
ENERGY LEVELS
FLUID FLOW
GRAPHITE
HEAT TRANSFER
IONIZATION
MEASURED VALUES
OSCILLATIONS
PARTICLES
POTASSIUM
SODIUM FLUORIDES
STAINLESS STEELS
TEMPERATURE
THERMODYNAMICS
URANIUM FLUORIDES
URANIUM SULFATES
URANYL COMPOUNDS
ZIRCONIUM FLUORIDES