Here is more about berkelium (element 97). Berkelium was discovered in 1949 in cyclotron experiments. The most commonly-produced isotope, ^{249}{\rm Bk}, has a half-life of 330 days and is produced in high flux nuclear reactors. The longest-lived isotope, ^{247}{\rm Bk}, has a half-life of 1380 years, but is more difficult to produce.
Other than scientific research, berkelium has no applications.