Some factors influencing the cost of a hospital based proton therapy centre

The nowadays availability of state-of-the-art proton therapy equipment from commercial companies, on a contract basis, makes it easier to precisely account for equipment prices as well as to better evaluate the consequences of the equipment characteristics on operating costs and possible patient throughput. This paper presents some data which can be used for the evaluation of these items

High beam intensities for cyclotron-based radioisotope production

Cyclotron technology is largely disseminated into the medical and radio-pharmaceutical community. In particular, cyclotron-based systems devoted to radioisotope production, both for therapy and diagnostics, are commercially available and used since many years. Today, almost 10 years after the construction of IBA's first CYCLONE 30, a cyclotron that revolutionized cyclotron technology for medicine and industry, the requirement for high beam intensities is becoming more and more important. As a consequence, and favoured by continuous developments in target technology and on ion sources, the maximum beam intensity available from these cyclotrons has increased, with years, from a few hundred mu A to a few mA. The present paper focuses on some of the applications for which high beam intensities are required, as well as on the achievements and developments at TSA in relation with these applications.Anglai

Proton and alpha emission in /sup 20/Ne+/sup 24/Mg collisions below 10 MeV/nucleon

Proton and alpha emission in /sup 20/Ne+/sup 24/Mg collisions have been measured at /b E//sub lab/=55, 80, and 160 MeV in an angular range of 0 degrees <or= thetas /sub lab/<150 degrees . The experimental results were confronted by models for compound nucleus deexcitation. Satisfactory agreement is found if angular momentum conservation is taken explicitly into account. The contribution of preequilibrium processes is also examined.Anglai

Recent advances in the design of a cyclotron-driven intense, subcritical neutron source

The authors recently proposed a subcritical, cyclotron-based spallation neutron source, with neutron multiplication by fission. The present paper presents some recent advances in the design of this system, together with the design corresponding to the optimal configuration for /sup 99/Mo production.Anglai

Multi-milliampere compact cyclotrons used as neutron sources

Recent developments in accelerator technology enable high current proton or deuteron beams production up to several milliamps, providing attractive sources for high neutron yield production. Be(p,n), Be(d,n) and /sup 238/U(X,n) reactions are discussed to produce high energy and thermal neutron yields. A 140 MeV, 2.5 mA extracted beam cyclotron is also proposed to feed a spallation neutron source, generating thermal neutron fluxes similar in intensity to those produced by nuclear reactors.Anglai