Brief annotation and scientific rationale:
The development of the superconducting proton cyclotron MSC-230 will create a source of intense proton beams, opens up possibilities to modernize the equipment for precise control and delivery of high dose rate for studies by the Flash therapy method. MSC-230 may become the first model for a series of specialized medical accelerators of this type. The cyclotron should provide a current  up to 1 μA in continuous mode and up to 10 μA in pulsed mode at the proton energy of 230 MeV.

The modeling and testing prototypes of the cyclotron elements, such as a proton source and a deflector, on the test benches and the developing of the magnetic field measurement system are necessary for the successful launch of the MSC-230 cyclotron.

The project actuality  is determined primarily by the importance of creating adomestic accelerator for proton therapy using the most modern methods, distinguished by a unique beam intensity, as well as the relevance of medical and biological research that will be conducted at MSC-230.

Expected results upon completion of the project:
The MSC-230 cyclotron commissioning on the beam design parameters necessary for testing equipment and treating patients with modern proton therapy methods.

Expected results of the project this year:
The study of the operability of individual cyclotron systems: deflector, proton source. Development of the magnetic field measurement system including the calibration magnet. Determination of medical and technical conditions for the  proton therapy center projecting.

Brief annotation and scientific rationale:
The most modern free electron lasers, as well as other facilities which require high quality electron beam, the photocathode injectors are being used. Such injectors allow to obtain higher beam quality than thermoemission ones. Replacement of the thermoinjector of the LINAC-200 accelerator to the photoinjector is being considered. This will result in the beam emittance reduction, will give more flexibility in beam temporary profile and eventually will allow to construct LINAC-200-based FEL in the range from far IR to UV and soft X-rays.

Expected results of the activity upon completion:
The photoinjector testbench with the electron energy of up to 6 MeV based on S band RF gun construction.  The possibility of replacing the thermoinjector of the LINAC-200 accekerator with a photoinjector to improve beam quality and variability of its parameters conclusion.
Research of the quantum efficiency of various “transparent” photocathodes based on ultrathin carbon films: depending on deposition method, carbon phases and structures, doping elements and their concentration, cathode shape etc.

Expected results of the activity in the current year:
Design and assembling of the testbench equipment: laser beamline, vacuum and RF systems, synchronization of the laser with RF system, beam focusing and diagnostics. Design of the safety systems.

Brief annotation and scientific rationale:
The Federal Medical and Biological Agency (FMBA) of Russia expressed its intention to take part together with JINR in the development of a joint concept (and in the future, a project) for the establishment of a pilot scientific and clinical center for proton therapy on the basis of the existing medical center No. 9 of the FMBA in Dubna and based on the MSC-230 accelerator being created at JINR. The objectives of the center will be development of modern methods and technologies of radiation therapy, medical technologies and diagnostics for the use of radiation therapy, advanced scientific research in the field of radiobiology, experimental irradiation and further treatment of patients.

Expected results of the activity upon completion:
Preparation of the project for establishment a proton therapy center.

Expected results of the activity in the current year:
Development of medical and technical conditions for the project of establishment a proton therapy center.