RFQ pioneer celebrates 80th birthday

Vladimir Teplyakov, one of the leading scientists at the Institute for High Energy Physics (IHEP) in Protvino, celebrates his 80th birthday on 6 November. A distinguished expert in accelerator and beam physics and engineering, he is well known for his invention in the late 1960s, together with Ilya Kapchinsky of ITEP-Moscow, of the radio-frequency quadrupole (RFQ) linear accelerator. This versatile device, which bunches, focuses and accelerates lower energy protons and ions using only RF fields, has been put into operation in many labs throughout the world.

After being drafted into the Red Army and serving in the Second World War, Teplyakov graduated from the Polytechnic Institute, and in the 1950s began his career in the Moscow-based Institute for Chemical Physics of the National Academy of Sciences. While there, he was involved in feasibility studies for a high-current proton linear accelerator. In 1966 Teplyakov moved with his team to IHEP in Protvino, where he was charged with commissioning and running a 100 MeV Alvarez drift-tube linac, the I-100. This machine has served for 20 years as an injector to the 70 GeV proton synchrotron, the U-70, which was the world's largest when it started up.

In 1969 Teplyakov and Kapchinsky put forward the concept of the RFQ, for which they received the Lenin prize, the top award of the former USSR, in 1988. The American Physical Society has also honoured the achievement. Since then, Teplyakov has contributed greatly to extending RFQ focusing to higher beam energies by developing various RFQ drift-tube structures and RF cavities to drive them. In 1985 the world's only all-RFQ 30 MeV linear accelerator, the URAL-30, was put into operation and is still being employed as an injector to the fast-cycling 1.5 GeV booster synchrotron in the upgraded injector chain of the U-70. Now, a modified successor, named URAL-30M, is being assembled and subjected to pre-commissioning bench testing.

Teplyakov has authored more than 100 scientific papers and many patented inventions, and is co-author of the fundamental book Linear Accelerators of Ions, used by several generations of accelerator scientists in Russia. He is still active in science and full of new ideas. His friends and colleagues wish him good health and many more years of creative research.

Third school for astroparticle physicists of the future

At the beginning of July, more than 60 European doctoral students gathered in Belgirate, on Lake Maggiore in Italy, to attend the third International School on Astroparticle Physics (ISAPP 2005). The school is part of the activities of the ISAPP network, which includes 23 universities, institutes and laboratories from France, Germany, Israel, Italy, Russia and Spain. It is different from other schools in that it is dedicated to European doctoral students from two fields - nuclear and particle physics, and cosmology and astrophysics - whose students do not traditionally mix, and so aims to create new astroparticle physicists.

The format of the school begins with two days dedicated to parallel introductory lessons on topics that some of the students are less familiar with, while the "core" lessons, common to all the students, provide an in-depth look at specific areas of astroparticle physics. This year the main topic concerned high-energy cosmic rays, while previously there were in-depth lectures on neutrinos in physics and astrophysics, dark matter and dark energy, and gravitational waves.

Time is also set aside during the school for formal and informal discussions and short seminars by the students. Care is taken to have the speakers stay for the full length of the school and at the same location as the students, so as to encourage the exchange of experiences and ideas.

This year's school was attended by students from 11 countries, with a majority of non-Italians, and there was also a large number of women, who constituted half the participants. Next year the school is planned to take place in Germany.

• For more information on the ISAPP network, together with complete lists of the school's programme, organizers, teachers and lessons, see www.mi.infn.it/ISAPP.