12 INCH CYCLOTRON MAGNET

Synonmous with the word "cyclotron," magnet, usually large magnet , comes right to mind. Our case is no exception ! Here are the impresive specs:


Height: 36 inches (91cm)

Width:42 inches (106.5cm)

Depth:12 inchs (30cm)

Pole Diameter:12 inches (30cm)

Yoke Cross Section:72sq.inches (450sq.cm.) per yoke (double that for total circuit area)

Total Weight: 4,600 pounds

-each coil:800 pounds

-Iron:3,000 pounds

Power Consumption (max. operating conditions): 4kW (80 V @ 50 A)

Cooling Requirements: Water flow approx 2 GPM

The 12 inch magnet came from another cyclotron lab, where it's roll was not as the "cyclotron magnet" but as the first analyzing magnet of the extracted beam from the cyclotron. Our little 12-inch magnet was dwarfed by the awesome 290-ton 60-inch 16MeV Cyclotron. This is a story almost of fable proportions, as the little magnet, identical in shape, just 25 times smaller than the enormous cyclotron magnet, finally acchieves the rank of "Cyclotron Magnet" 50 years later.

FIG.1 60 inch cyclotron showing off extracted beam. 14 MeV D's loosed into the room excite nitrogen in the air. Approximately 1950.

FIG.2 60 inch cyclotron, 50 years later. Our 12-inch magnet can be partially seen at the right, in the unshaded region, of the photo. August 1998.

FIG.3 Another shot, looking parallel with the extracted beam, at the face of our 12-inch magnet (highlighted). This was the first "analyzing" magnet of the extracted beam.

The 12 inch magnet was loaded onto a specially made palatte, loaded onto a Ryder rental truck and driven to Rutgers. The restoration is photographically documented in the 12inch Photo Album.