A beam containing two types of positive ions, Type 1 (charge \(q\), mass \(m\)) and Type 2 (charge \(2q\), mass \(4m\)), enters a velocity selector with electric field magnitude \(E\) and magnetic field magnitude \(B\). The ions that emerge undeflected from the velocity selector then enter a deflection chamber containing a uniform magnetic field of the same magnitude \(B\) directed perpendicular to their velocity. If the undeflected Type 1 ions follow a semicircular path of radius \(R\) in the deflection chamber, what is the radius of the semicircular path followed by the undeflected Type 2 ions?