The method of charged particle acceleration

 

(57) Abstract:

The invention relates to accelerator technology, in particular for proton synchrotrons. In the invention a method of controlling the beam of charged particles on a circle with increasing magnetic field is along the sides of the polygon. At each side of the polygon is set to dipole and a focusing device, which is made in the form of a coil with a longitudinal magnetic field. Technical result: the accelerator on the proposed method provides receiving proton energy of more than 1000 TeV with small geometric dimensions and modest energy consumption from the industrial network. 2 S. p. f-crystals, 1 Il.

The invention relates to accelerator technology, in particular the powerful proton synchrotrons.

In particle accelerators there is a vast literature presented in the Works of all-Union conference on charged particle accelerators, as well as in[1, 2, 3, 5, 6].

Huge geometric dimensions and the large inertia of the ring electromagnet accelerator complicate the management of a charged particle beam, limit opportunities proton synchrotron largest attainable energy. Once the development of automatic systems. Characteristic features of proton synchrotrons are burdensome and negative, and in the end, the proton synchrotron as a leader in accelerator technology have lost perspective of its development, became odious object with enormous energy consumption from the industrial network.

In [5] proposed for proton synchrotron offline-partitioned system power ring electromagnet, ASSAGAO. ASSECAA consists of Autonomous and isolated sections of the ring electromagnet, each of which is connected to an Autonomous and fully controlled current source on the basis of the effects of the infinite gain (system amplifier), and the control input of each current source is connected to the setting device. The structure of ASSECAA elevates proton synchrotron to the ideal level for all indicators in the traditional method of controlling the charged particle beam on a path around the circumference with increasing magnetic field.

Consider how the prototype AC N 1499729 containing bending magnets (dipoles) ring structure, separated by a rectilinear spaces to accommodate the accelerating system, corrective magnetic lenses and other auxiliary equipment, the remains of the prototype:

1. The problem of increasing energy in the main accelerator technology is practically solved by increasing the geometric dimensions of the accelerator;

2. With the growth of the perimeter of the ring structure of the accelerator increase:

the inertia of the accelerator,

passive energy consumption from the industrial network,

- the difficulty to control the output coordinates of main technical systems of the accelerator.

3. The straight sections reduce the effective radius of the orbit;

4. Hard focus increases the list of shortcomings of the accelerator, it is the result of insufficient knowledge of management processes in the accelerator.

5. Synchrotron radiation limits limits accelerator largest attainable energy.

The structure of the prototype is built on the principle of dissipation of energy in space that causes all the shortcomings of the accelerator.

The problem to be solved in the claimed invention, is the creation of a compact amount of the accelerator of charged particles with energies of more than 1015eV.

This result is achieved by the fact that the acceleration and transport of a charged particle beam produced by the sides of the polygon, each of which their device is made in the form of a coil with a longitudinal magnetic field, when this closed loop accelerator is a polygon, each side of which has the above-mentioned dipole, the focusing device and the accelerating device, and the dipole and the focusing device is made in the form of a coil with a longitudinal magnetic field.

The drawing shows a diagram of the accelerator of charged particles as an example of application of the proposed method of accelerating charged particles, where

1 - dipole with a longitudinal magnetic field,

2, 4 - focusing device,

3 - accelerating device,

5, 6, 7 - controlled current sources.

POS. 1, 2, 4 made in the form of coils with a longitudinal magnetic field. In the diagram the arrows indicate the Central orbit of the accelerator. Each of current sources provides accurate control of the output coordinate, with suppressed all applicable at him disturbances, including parametric.

Reels 2 and 4 provide:

- the required value of space charge density,

- the size of the beam due to the change of the magnetic field.

Idealization of fixing the size of the beam is carried out by the coils 2, 4, when the density of space charge in a uniform raspatelli 1, and focusing devices 2, 4 can be carried out constructively in the form of a coil with a longitudinal magnetic field:

a) cooling or no cooling;

b) in strong pulsed magnetic fields (4);

C) on the basis of the superconducting structure.

The number of installed focusing devices at each side of the polygon is determined by the characteristics of the dipole and the quality of the accelerating device. Options a) and b) allow unlimited acceleration. The structure of the device allows continuous acceleration of charged particles, and pulse. The chart shows the maximum number of current sources; their number can be reduced by switching devices of the magnetic system.

Dipole 1 changes the direction of the orbit to the angle between the velocity vector of a charged particle and the direction of the magnetic induction B, where a charged particle is moving dipole 1 helix with radius r and pitch of the screw h.

< / BR>
,

where E1and E0- total energy and rest energy of a charged particle.

B - magnetic induction in Tesla.

< / BR>
From the presented scheme of the device and of the formula (1) shows that zaryazhennaya its direction in degrees.

When the movement of charged particles along the Central orbit their energy increases at each side of the polygon on the magnitude of the accelerating voltage, the device 3. The deposition energy of the charged particles theoretically has no limits.

From the formula (1) shows that the radius of revolution of the rotating particles varies from zero to values, asymptotically approaching the value of

< / BR>
when E _ .

Digital values in formulas(1), (2), (3) refer to the proton synchrotron. The limited size of the radius of the coil (3) expresses and ensures the sustainability of the process an unlimited increase in the energy of the team charged particles, and this property of the method and structure of the proposed scheme accelerator fundamentally distinguishes them from all known schemes accelerators.

The energy of the proton beam in the present invention is equal to

< / BR>
U1the accelerating voltage in the side of the polygon volts.

Ty- the process of acceleration in seconds.

n is the number of sides of the polygon.

P is the perimeter of the polygon in meters.

From the formula (4) are clearly visible proposals that optimize the accelerator.

Of f is opposed to the traditional circular accelerators, not directly depend on the values of the magnetic induction dipole 1. The process of acceleration of charged particles is specified at constant magnetic field in the dipole 1; the parameters of the ground acceleration is the magnitude of the magnetic field, acceleration is provided a controlled current source 5, capable of withstanding and be repeated unlimited number of times specified magnetic field in the dipole 1. In formula (4) shows that the energy value achieved in the proposed design of the accelerator, is inversely proportional to the perimeter P of the polygon. The value of P should be minimal and should be determined only by the size of devices on each side of the polygon. Therefore, the proposed method of controlling the charged particle beam structurally provides a theoretically unlimited amount of attainable energy C beam of charged particles with a minimum size of:

geometrical dimensions of the accelerator of charged particles,

- consumption of energy from industrial network.

The accelerator of charged particles under the proposed method provides receiving proton energy of more than 1000 TeV with small geometric dimensions of its design and modest consumption of energy from industrial the magnetic field. These two features of the traditional scheme of the accelerator are the main actors, fundamentally limiting the further development of the proton synchrotron largest attainable energy.

There are only two ways of development of traditional proton synchrotron, based on the increase of the radius and the magnetic field of the ring accelerator, which currently has almost reached the limit values. Superconducting system has not been able to seriously improve the stalemate in the traditional way of acceleration ring. The proposed method opens prospects for applications of superconductivity; magnetic circuit elements 1, 2, 4 with a longitudinal magnetic field can be performed in a superconducting performance. This embodiment of the magnetic system is valuable in that it also allows unlimited acceleration.

Literature

1. Brehna, - Superconducting magnetic system. - M.: Mir, 1976.

2. Kolomna A. A. Physical principles methods of charged particle acceleration. - M.: publishing house. Moscow state University, 1980.

3. Lebedev A. N., Sallnow A. C. fundamentals of physics and technology of accelerators. - M.: Energoatomizdat, 1991.

4. Strong and super-stylish minitialized power of an electromagnet. RF patent N 2013893, H 05 H 7/00. Bull. 10, 30.05.94.

6. Accelerators: trans. from eng., it. - M.: State. ed. lit. . nuclear science and technology, 1962.

1. Method of accelerating charged particles, including transport in the process of acceleration of the charged particle beam in a closed loop containing a number of sections, each of which set the dipole, the focusing device and the accelerating device, characterized in that the transportation of produce on the sides of the polygon, each of which install these dipole, the focusing device and the accelerating device, while the dipole and the focusing device is made in the form of a coil with a longitudinal magnetic field.

2. The accelerator of charged particles, containing a closed loop with a number of sections, each of which has a dipole, the focusing device and the accelerating device, wherein the closed path is a polygon, each side of which has the above-mentioned dipole, the focusing device and the accelerating device, while the dipole and the focusing device is made in the form of a coil with a longitudinal magnetic field.

 

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