Study of the production and confinement of positron beams. An application to the Linear Accelerator of Orsay
Description
This study on the production and confinement of positron beams is divided into three parts. In the first one, an analytical approximation of lateral, angular and energy distribution is given. This survey is based on the late tables of Messel et Crawford (1970) and is in good agreement with SLAC and FRASCATI estimations and measurements. Positron beam focusing is investigated in the second part: ''quarter wave'' and adiabatically tapered solenoids as well as pediodic multiplets are considered. More specially, positron injector focussing for DCI collision rings is described. In the last part of this work, a comparison between ''quarter wave'' and adiabatically tapered solenoids is presented. Larger total acceptance of the latter is pointed out in the range of medium and higher energy (>=1 GeV) accelerators
Availability note (English)
MF available from INIS under the Report Number.Abstract (French)
Cette etude sur la production et le confinement des faisceaux de positrons comporte trois parties. On presente dans la premiere partie, une approximation analytique du developpement lateral, angulaire et en energie de la source de positrons. Cette analyse, qui s'appuie essentiellement sur les travaux recents de Messel et Crawford (1970), est en bon accord avec les estimations et les mesures faites au SLAC et a FRASCATI. On traite dans la deuxieme partie, de l'optique utilisee dans la focalisation du faisceau de positrons: solenoides quart d'onde et ''adiabatique'' et series periodiques de multiplets. En particulier, le systeme utilise sur l'injecteur de positrons de l'anneau de collisions ''DCI'' d'Orsay y est decrit. La troisieme partie est consacree a la comparaison de deux systemes: le solenoide quart d'onde et le solenoide ''adiabatique''. Les avantages de ce dernier sont mis en evidence pour ce qui est de l'acceptance globale du faisceau de positrons dans les accelerateurs de grande et moyenne energie (1 GeV)Files
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Additional details
Additional titles
- Original title (French)
- Etude de la production et du confinement d'un faisceau de positrons. Application a l'Accelerateur Lineaire d'Orsay
Publishing Information
- Imprint Pagination
- 138 p.
- Report number
- LAL-RI--75-4
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 7230995
- Subject category
- S43: PARTICLE ACCELERATORS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- ADIABATIC INVARIANCE; BEAM OPTICS; ELECTROMAGNETIC LENSES; GEV RANGE 01-10; ORSAY LINAC; POSITRON BEAMS; SOLENOIDS
- Descriptors DEC
- ACCELERATORS; BEAMS; CYCLIC ACCELERATORS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; ENERGY RANGE; GEV RANGE; LENSES; LEPTON BEAMS; LINEAR ACCELERATORS; PARTICLE BEAMS