Iowa Acceleration

This thesis covers the few-cycle laser-driven acceleration of electrons in a laser-generated plasma. This process, known as laser wakefield acceleration (LWFA), relies on strongly driven plasma waves for the generation of accelerating gradients in the vicinity of several 100 GV/m, a value four orders of magnitude larger than that attainable by conventional accelerators. This thesis demonstrates that laser pulses with an ultrashort duration of 8 fs and a peak power of 6 TW allow the production of electron energies up to 50 MeV via LWFA. The special properties of laser accelerated electron pulses, namely the ultrashort pulse duration, the high brilliance, and the high charge density, open up new possibilities in many applications of these electron beams.

In a story of triumph and tragedy, Iowa PBS brings viewers an exploration into a legendary battleship's history and the lives of those who served on the famed ship in the new documentary, USS Iowa. The USS Iowa (BB-61) was the lead ship in the United States Navy's last, and most battle-worthy, battleship class, which also included the New Jersey, Wisconsin, and Missouri.

Dylan Iowerth travels the world to discover more about Margaret Roberts, who was highly regarded through her articles in Y Drych to members of the Welsh language community around the world, but has since been largely forgotten.

Over the past decade, the visionary musician Arthur Russell has entered something close to the mainstream.

Identify Iowa birds with this easy-to-use field guide, organized by color and featuring full-color photographs and helpful information.

This album features two Choral masterpieces by Durufle, with performances for chorus, organs, and soloists. The UNI Concert Chorale is a mixed ensemble of 36 undergraduate and graduate students selected by competitive audition from all academic disciplines at the University of Northern Iowa. Recent performances include requiems by Brahms and Mozart, Ralph Vaughan William's Hodie, and Tarik O'Reagan's Triptych. Concert Chorale has performed for national and regional conventions of the American Choral Directors Association and tours both domestically and internationally. Founded in 1960, the Glee Club is among the most active and cherished organizations at the University of Northern Iowa. Twice each week, over one hundred students join each other in song to pursue the Excellence, embody the Tradition, and live the Camaraderie of the Glee Club.