Zone d'identification
Cote
Titre
Date(s)
- 1956.10 (Création/Production)
Niveau de description
Étendue matérielle et support
Dimensions: 19,4 X 12,6
Zone du contexte
Histoire archivistique
Source immédiate d'acquisition ou de transfert
Zone du contenu et de la structure
Portée et contenu
Twelve nations are members of the European Organization for Nuclear Research (CERN), a new organization set up under UNESCO sponsorship to aid the co-operation between separate research centers in the field of nuclear theory. The CERN program is concentrated on two big machines, a spectro-cyclotron and a proton-synchrotron, now under construction at the CERN laboratory site near Geneva.
The synchro-cyclotron is designed to work at the 600 million electron volts energy level; it consists of a vacuum chamber bbetween the circular poles of a 2500 tons electro-magnet. Protons are injected in this chamber and accelerated along a spiral path by high frequency electrical forces until they reach speeds approaching 250000 km. per second.
Shown here is the synchro-cyclotroon's electro magnet, with the vacuum tank between the pole plates. Two technicians are making some final adjustments. Note the water pipe connections for cooling water which circulates through the aluminum conductor of the electro magnet's energizing coil.
Évaluation, élimination et calendrier de conservation
Accroissements
Mode de classement
Zone des conditions d'accès et d'utilisation
Conditions d'accès
Public
Conditions de reproduction
The United Nations allows reproduction of photo print for non-commercial, personnal or research use only. the source will be mentioned as follows "UNOG Library".
Any other use of the reproductions, including but not limited to commercial or scholarly reproductions, redistribution, publication or transmission, wether by electronic means or otherwise, without prior written permission and authorization from the United Nations Office at Geneva (UNOG) is strictly prohibited
UN photo 51599
Langue des documents
Écriture des documents
Notes de langue et graphie
Caractéristiques matérielle et contraintes techniques
Image editing: B/W
Instruments de recherche
Zone des sources complémentaires
Existence et lieu de conservation des originaux
Existence et lieu de conservation des copies
Unités de description associées
Zone des notes
Note
Protection period to: 1956-10-31
Geographical information: Switzerland
Identifiant(s) alternatif(s)
Scope ID
Reference Code
Mots-clés
Mots-clés - Sujets
Mots-clés - Lieux
Mots-clés - Noms
Mots-clés - Genre
Zone du contrôle de la description
Identifiant de la description
Identifiant du service d'archives
Règles et/ou conventions utilisées
Statut
Niveau de détail
Dates de production, de révision, de suppression
Langue(s)
Écriture(s)
Sources
Note de l'archiviste
Protection period duration: 0
Note de l'archiviste
Protection period note:
Note de l'archiviste
Permission: No permission necessary.
Note de l'archiviste
Physical usability: Without limits
Note de l'archiviste
Term of protection: Accessible (0)