Question

1. A cyclotron can accelerate
a) B-particles
b) a - particles
c) neutron
d) none of these​

Answer 1

Answer:

A cyclotron is used to accelerate both positively and negatively charged particles but a neutral particle (e.g neutron) cannot be accelerated in cyclotron.

do the answer is none of these

Answer 2

Answer:

A cyclotron is used to accelerate both positively and negatively charged particles but a neutral particle (e.g neutron) cannot be accelerated in cyclotron.

Explanation:

A cyclotron is a type of particle accelerator invented by Ernest O. Lawrence in 1929–1930 at the University of California, Berkeley,[1][2] and patented in 1932.[3][4] A cyclotron accelerates charged particles outwards from the center of a flat cylindrical vacuum chamber along a spiral path.[5][6] The particles are held to a spiral trajectory by a static magnetic field and accelerated by a rapidly varying (radio frequency) electric field. Lawrence was awarded the 1939 Nobel Prize in Physics for this invention.[6][7]

Lawrence's 60-inch cyclotron, with magnet poles 60 inches (5 feet, 1.5 meters) in diameter, at the University of California Lawrence Radiation Laboratory, Berkeley, in August, 1939, the most powerful accelerator in the world at the time. Glenn T. Seaborg and Edwin M. McMillan (right) used it to discover plutonium, neptunium, and many other transuranic elements and isotopes, for which they received the 1951 Nobel Prize in chemistry. The cyclotron's huge magnet is at left, with the flat accelerating chamber between its poles in the center. The beamline which analyzed the particles is at right.

A modern cyclotron used for radiation therapy. The magnet is painted yellow.

Core of the first Belgian cyclotron, built in Heverlee in 1947.

A 37'' cyclotron at Lawrence Hall of Science, Berkeley California.

Cyclotrons were the most powerful particle accelerator technology until the 1950s when they were superseded by the synchrotron, and are still used to produce particle beams in physics and nuclear medicine. The largest single-magnet cyclotron was the 4.67 m (184 in) synchrocyclotron built between 1940 and 1946 by Lawrence at the University of California, Berkeley,[1][6] which could accelerate protons to 730 mega electron volts (MeV). The largest cyclotron of its kind is the 17.1 m (56 ft) multimagnet TRIUMF accelerator at the University of British Columbia in Vancouver, British Columbia, which can produce 520 MeV protons.

Close to 1500 cyclotrons are used in nuclear medicine worldwide for the production of radionuclides.[8]