31. At a conference at Cambridge on beta particles and gamma rays in 1928, Chadwick met Geiger again. 32. Count rate measurements are associated with the detection of particles, such as alpha particles and beta particles . 33. The relatively low energy emitted by beta particles does not damage the semiconductor device where the particles collect. 34. When passing through matter, a beta particle is decelerated by electromagnetic interactions and may give off bremsstrahlung x-rays. 35. :Beta particles are electrons / positrons. 36. Most diagnostic radionuclides emit gamma rays, while the cell-damaging properties of beta particles are used in therapeutic applications. 37. Inside the lungs the fragments continue to decay and release radiation in the form of alpha and beta particles . 38. Beta particles are charged particles ( usually with a negative electrical charge ) that are released from nuclear explosions.39. Beta particles emitted by the tritium strike the phosphor coating and cause it to fluoresce, emitting light, usually yellow-green.40. There are several different kinds of these particles, but the majority are alpha particles, beta particles , neutrons, and protons.
