Here we go again...
We are never done! Introducing out latest cyclotron project - a 19.5 inch cyclotron.
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_0.jpg?resize=400%2C388)
Fig. 1 The vision (by Tim & Tim).
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_1.jpg?resize=400%2C266)
Fig. 2 Our progress towards the vision.
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_2.jpg?resize=400%2C266)
Fig. 3 We started with this old 12,000 pound magnet from 1947.
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_3.jpg?resize=400%2C266)
Fig. 4 Split the yoke into its two halves to remove the coils.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_4.jpg?resize=400%2C266)
Fig. 5 Taking the coils off.
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_5.jpg?resize=400%2C266)
Fig. 6 Taking the coils off.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_6.jpg?resize=266%2C400)
Fig. 7 Taking the coils off.
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_7.jpg?resize=400%2C266)
Fig. 8 The coils are off to reveal a solid yoke/pole tip assembly.
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_8.jpg?resize=400%2C266)
Fig. 9 A close up.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_9.jpg?resize=400%2C266)
Fig. 10 Onto the next half.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_10.jpg?resize=400%2C266)
Fig. 11 Set side-by-side
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_11.jpg?resize=400%2C266)
Fig. 12 Coil inspection.
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_12.jpg?resize=400%2C266)
Fig. 13 It does not look good.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_13.jpg?resize=400%2C266)
Fig. 14 This coil weighs 1,000 lbs.
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_14.jpg?resize=266%2C400)
Fig. 15 Against the 12-inch magnet for comparison.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_15.jpg?resize=266%2C400)
Fig. 16 Electrically, they test fine.
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_16.jpg?resize=400%2C266)
Fig. 17 They clean up nice too, but the cooling lines...
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_17.jpg?resize=400%2C266)
Fig. 18 Making the magnet table.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_18.jpg?resize=400%2C266)
Fig. 19 Four-inch square tubing
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_19.jpg?resize=400%2C266)
Fig. 20 Enie's welds
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_20.jpg?resize=400%2C266)
Fig. 21 The frame coming together nicely.
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_20a.jpg?resize=400%2C266)
Fig. 22 The table is done!
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_21.jpg?resize=400%2C266)
Fig. 23 Three proud amigos
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_22.jpg?resize=400%2C266)
Fig. 24 The magnet yoke upon the table.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_23.jpg?resize=400%2C266)
Fig. 25 The magnet air gap is 3-inches
![](https://i1.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_24.jpg?resize=400%2C300)
Fig. 26 This is the Harvard 95-inch cyclotron, compare it to the next photo.
![](https://i2.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_25.jpg?resize=400%2C343)
Fig. 27 Amazing, no? Our 19-inch cyclotron magnet was delivered by GE in Oct 1947, the Harvard magnet was delivered by GE two months later
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_26.jpg?resize=400%2C266)
Fig. 28 Tim, Tim the elder, T
![](https://i0.wp.com/www.physics.rutgers.edu/cyclotron/images/19inch/thumbnails/19_27.jpg?resize=400%2C266)
Fig. 29 Tim, Tim the younger, t