SUPERCONDUCTING MAGNETIC SYSTEM, GENERATOR OF INTENSE AND UNIFORM MAGNETIC FIELD

The invention relates to a superconducting magnetic system, generator of intense and uniform magnetic field, with applications in atomic and nuclear physics. According to the invention, the system consists of a cryostat (1) of a superconducting electromagnet having a number of 14 superconducting coi...

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Hauptverfasser: POPOVICI IULIU ROMEO, DOBRIN ION, ENACHE DAN, APRODU CICERONE, DOBRIN ANDREI, MOREGA ALEXANDRU-MIHAIL, DOBRE ALIN ALEXANDRU, MILITARU ADRIAN, MOREGA MIHAELA
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a superconducting magnetic system, generator of intense and uniform magnetic field, with applications in atomic and nuclear physics. According to the invention, the system consists of a cryostat (1) of a superconducting electromagnet having a number of 14 superconducting coils (4), namely 7 upper coils and 7 lower coils, placed in a cos - θ type configuration, which are introduced into a vacuumed enclosure and cooled to 4.2...20 K by a cryocooler (2) by means of a magnetic screen (5), being protected to thermal radiation of 300 K by a thermal screen (7), which, by being coupled at the 50 K stage of the cryocooler (2), reduces the radiative thermal transfer to a level of maximum 1.5 Watt, where the cryostat (1) has an axial channel (8) which passes through the superconducting electromagnet, for the access of the electrically-loaded particles, by feeding the superconducting coils (4) from a programmable source, at a current I = 0-500 A, there being obtained the magnetic field B = 0-5T with a uniformity of 10-10in the entire interior volume of the assembly of superconducting coils (4). Invenţia se referă la un sistem magnetic supraconductor, generator de câmp magnetic intens şi uniform, cu aplicaţii în domeniul fizicii atomice şi nucleare. Sistemul conform invenţiei este alcătuit dintr-un criostat (1) al unui electromagnet supraconductor, având un număr de 14 bobine supraconductoare (4), şi anume, 7 bobine superioare şi 7 bobine inferioare, dispuse într-o configuraţie de tip cos-teta, care sunt introduse într-o incintă vidată şi sunt răcite la 4,2...20 K de către un criorăcitor (2) prin intermediul unui ecran magnetic (5), şi sunt protejate la radiaţia termică de 300 K de un ecran termic (7), care, prin cuplare la treapta de 50 K a criorăcitorului (2), reduce transferul termic radiativ la un nivel de maximum 1,5 Watt, în care criostatul (1) prezintă un canal (8) axial ce trece prin electromagnetul supraconductor, pentru accesul particulelor încărcate electric, prin alimentarea bobinelor supraconductoare (4) de la o sursă programabilă la un curent I = 0...500 A, obţinându-se câmpul magnetic B = 0...5 T cu o uniformitate de 10-10în tot volumul interior al ansamblului de bobine supraconductoare (4).