B Is a 2 Tesla magnetic field strong enough for a 5cm cyclotron design?

[Mentz114]

I'm trying to work out what velocity and magnetic field strength one needs to capture the charged particle in a circle of comfortable lab size - say 5cm ( 0.05m).

For a sodium ion ( mass = 3.8175407 × 10^-26 kg) with charge q = 1.60217653 x 10 ^-19 , velocity 183234 m/s, C in a magnetic field of 2 Tesla the radius of the circle $R=mv/qB$ is 0.0218m.

The velocity requires a 4000v potential and seems a bit big. Have I made an error ?

[I'm not actually building a cyclotron, just a magnetic deflector.]

 

[Vanadium 50]

2 Tesla is a huge field. (And please, significant figures!)

 

[Mentz114]

2 Tesla is a huge field. (And please, significant figures!)

My understanding of magnetic field strength comes from this

      Smallest value shielded        10^-14 Tesla      10^-10 Gauss
      Interstellar space                  10^-10 Tesla      10^-6 Gauss
      Earth's magnetic field           0.00005 Tesla      0.5 Gauss
      Small bar magnet                 0.01 Tesla      100 Gauss
      Within a sunspot                   0.15 Tesla      1500 Gauss
      Small NIB magnet                0.2 Tesla      2000 Gauss
      Big electromagnet                1.5 Tesla      15,000 Gauss
      Strong lab magnet                10 Tesla      100,000 Gauss
      Surface of neutron star        10^8 Tesla        10^12 Gauss
      Magstar                                10^10 Tesla      10^15 Gauss

and the strongest I saw in a (small) cyclotron was 9 T.

With U = 1000V, B = 0.2T one gets R = 0.109m

In the ball park ( absent errors ).

(sorry about the redundant digits )