In fact, an alpha particle really is a nucleus-it's the same as the nucleus of a common atom of helium-but it doesn't have any electrons around it, and it's traveling very fast. Alpha particles are a type of ionizing radiation. To describe the production of alpha particles, we have to define radioactive decay.
Kingsburg Swedish Festival, which is the biggest and most known festivals that bring people in from all over the country, is held annually during the third weekend in May. Activities include a Swedish pancake breakfast, a parade and the coronation of the Swedish Festival Queen.
In Sweden Midsummer's day is a Saturday between the 19th and 26th of June, but as is usual in Sweden the actual celebration is on the eve, i.e. a Friday between the 18th and 25th of June. Midsummer's Eve is a de facto public holiday in Sweden with offices and many shops closed.