From storage ion trap of an 'in-flight capture' type for precise mass measurement of radioactive nuclei to mass selector of weight amounts of stable isotopes and to effective accumulator-collider of accelerated fusion hydrogen nuclei

Full text: Data on nuclear masses provide a basis for creating and testing various nuclear models. A tandem system comprised of the U-400M cyclotron, the COMBAS magnetic separator and the mass spectrometric ion trap of a 'in-flight capture' type is considered as a complex for producing of the short -lived nuclei by heavy ions in fragmentation reactions and for precise mass measurement of this nuclei. In-flight transportation of the recoiled nuclei to the magnetic solenoid of the ionic trap and transformation their longitudinal kinetic energy into an azimuth rotation arc produced by the fringing magnetic field according to Bush's theorem at the off axial input. Confinement and accumulation of the rotating ions in the trap are produced by using their reflecting by the electrostatic field of the final end cap electrode of the volume quadrupole and their repelling by a magnetic valve located at the entrance. The development of mass spectroscopic ion traps of a new tape resulted in a efficient method for selecting stable isotopes of non volatile chemical elements in the weight amounts analogously needed for physical and technical aims. The system uses ionic-cyclotron resonance in homogenous magnetic and volume quadrupole electric fields. In our case there are used general rotating excitation of the accelerated ions by the off axial input in the solenoid and their high frequency electric resonance cooling. There are axial transparency volume electric quadrupole with axial GZ<0 and radial GR >0 gradients (in the Penning trap GZ>0 and GR<0), one quasi Larmor resonance frequency of the charged particle in the mixed magnetic and quadrupole electric fields (m Penning trap there are two frequencies: reduced cyclotron and magnetron). A large electric current of ions can be produced in a special discharge source with the high perveance of the bombarding electrons contracted bringing magnetic field. New economical method for generating neutrons in vacuum collisions of hydrogen ion beams is discussed . In our case the confinement accumulation and colliding of accelerated hydrogen ions take place in magnetic field of solenoid and electrostatic field of volume octupole. It is proposed to use the phenomenal reaction 2 H+3H=4He+n having a very large resonance cross section at very low energy (63.0 keV in the centre-of-mass frame) in the merging collisions