ISSN:0034-6748    

DOI:10.1063/1.1770821

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

A description of the Brookhaven Cosmotron is followed by a resume´, component by component, of its design. The necessary dovetailing in the construction is outlined in a chronology of the fabrication, assembly, and testing of the units. A summary of the preliminary operation of the accelerator includes injection and acceleration tests. In an appendix, figures on personnel are included with a table of the basic parameters of the Cosmotron.

ISSN:0034-6748    

DOI:10.1063/1.1770822

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

The magnet of the Cosmotron is designed to provide magnetic fields up to 14 000 gauss over a region roughly 9 in. by 30 in. surrounding the proton orbit of 30‐ft radius. The magnet is C‐shaped with the magnetic return inside the proton orbit. The magnet gap contour is shaped very precisely to accommodate and control the excursions of the proton beam from its stable orbit. The magnet is energized by current supplied to its water‐cooled coil from a 26 000‐kva motor‐flywheel‐generator set. Magnet parameters are tabulated, and the considerations which led to their choice are discussed.

ISSN:0034-6748    

DOI:10.1063/1.1770823

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

Techniques have been developed for the precise measurement of magnetic field shapes of both steady‐state and time‐varying fields. A series of measurements was used to refine the design of the Cosmotron magnet and to examine the effects on field shape of many parts of component equipment. Measurements of the fields of the Cosmotron magnet have been made in detail; they indicate a field shape that conforms to the design requirements. Measurements on the magnet show good agreement with model predictions.

ISSN:0034-6748    

DOI:10.1063/1.1770824

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

The mechanical details of the structure of the Cosmotron magnet and its supports are outlined. Details of the manufacturing processes and the final assembly are included.

ISSN:0034-6748    

DOI:10.1063/1.1770825

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

The 288 blocks that constitute the Cosmotron magnet were tested, individually, to determine their magnetic characteristics. These measurements were used to arrange the blocks in an order that would minimize azimuthal harmonics. The remanent field was the only magnetic parameter that showed appreciable deviations.

ISSN:0034-6748    

DOI:10.1063/1.1770826

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

The exciting winding of the Cosmotron magnet contains 48 turns that carry a peak current of 7000 amp. The design, particularly of the special construction required at the ends of the magnet quadrants, is described. The sequence of processes is enumerated for the fabrication and assembly. After preliminary shakedown, periodic tests have shown no leaks to date.

ISSN:0034-6748    

DOI:10.1063/1.1770827

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

The power for the Cosmotron magnet is supplied by a 1750‐hp 13 800‐volt induction motor that drives a 21 000‐kva 12‐phase ac generator and a 43‐ton flywheel, rotating at approximately 900 rpm. The generator output is rectified through 24 double‐grid ignitrons which also act as inverters returning most of the magnetic energy of the coil to the rotating set.

ISSN:0034-6748    

DOI:10.1063/1.1770828

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

At fields over 10 000 gauss the effects of saturation in the Cosmotron magnet cause deterioration of the field pattern which rapidly becomes serious enough to cause complete loss of the proton beam. This pattern can be restored adequately up to 14 000 gauss by passing current through single‐layer windings on the faces of the magnet poles. Peak correction current required at 14 000 gauss is about 300 amp per radial inch of each winding. The pole‐face winding returns are so arranged that the winding is almost completely decoupled from the main magnetizing winding. The windings and their power supplies are in place but are not yet energized. Several turns of the winding are used in a self‐powered correction for the distortion of the magnetic median surface at injection fields.

ISSN:0034-6748    

DOI:10.1063/1.1770829

出版商:AIP    

年代:1953

数据来源: AIP

摘要:

The pole‐face windings, for correction of saturation effects in the Cosmotron magnet, were wrapped in Fiberglas tape and then cast in a polyester‐resin laminate. The process of fabrication and the materials used for casting are described.

ISSN:0034-6748    

DOI:10.1063/1.1770830

出版商:AIP    

年代:1953

数据来源: AIP