[单选题]
A deuteron has the same charge as a protonq3.opva cq:3nv pxc(; butqgfcu)y)15p z dq jmu2)o;y,s approximately twice the proton mass. Suppose deuterons are being accelerated in a cyc ymp2oqz,g y dcq))uj1u;s f5)lotron in an orbit of radius 75 cm at a frequency of 8.0 Mhz. What magnetic field is needed?
A. $0.011 \; T$
B. $0.11 \; T$
C. $1.1 \; T$
D. $11 \; T$
Post time 2024-1-22 02:15:01