- antielectron18
- antineutron15
- betatron12
- bevatron16
- biotron11
- calutron14
- cistron11
- citron10
- copatron15
- cryotron14
- cyclotron19
- diatron9
- dynatron13
- electron13
- elytron11
- hemelytron19
- ignitron12
- interelectron19
- intron8
- kenotron14
- klystron16
- magnetron16
- matron10
- mellotron15
- mesotron12
- natron8
- negatron12
- neutron10
- patron10
- photoelectron23
- plastron13
- plectron16
- pliotron13
- positron12
- quercitron24
- strobotron14
- synchrocyclotron34
- synchrotron20
- thyratron14