Measurements of the divergence of a 10-MA relativistic electron beam transported in a gas cell

Autor:	W. E. Fowler, V. J. Harper-Slaboszewicz
Rok vydání:	1991
Předmět:	Physics Nuclear physics Relativistic electron beam Electrical and Electronic Engineering Condensed Matter Physics Divergence (statistics) Atomic and Molecular Physics and Optics
Zdroj:	Laser and Particle Beams. 9:749-758
ISSN:	1469-803X 0263-0346
DOI:	10.1017/s0263034600003748
Popis:	The increase in time-integrated divergence of a 1.7-MeV, 10-MA relativistic electron beam due to transport over 10 cm in a gas cell filled with 1 and 6 Torr of nitrogen was measured. The divergence was characterized by a multiple-pinhole beam sampling technique involving an aperture plate, an expansion region, and an attenuator plate followed by nylon radiochromic film. The divergence is determined by a fit of the measured deposition profile to response functions calculated using Monte Carlo coupled electronphoton transport codes. The initial value of 6.9° after the entrance foil is observed to increase to 12°. The errors in the measurement are quantified with Monte Carlo techniques. The response function fit gives a significantly better estimate of the divergence than a Gaussian fit.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e16e9e6d214a01f17c07f6815f98d140 https://doi.org/10.1017/s0263034600003748 Zobrazit plný text záznamu