Debuncher

The debuncher applies an electric field or magnetic field to adjust the velocities of the particles, reducing the energy spread, and the particle beam typically has a range of energies (energy spread) after being accelerated or bunched. The debuncher compresses the longitudinal size of the beam (the length of the particle bunch) by synchronizing the particle velocities, and adjusts the phase space distribution of the beam (the relationship between particle position and momentum) to improve beam quality. Debuncher is the opposite of electron buncher, and it is used to disperse a particle beam for subsequent experiments or analysis. In some experiments, it is necessary to disperse a particle beam into individual particles or smaller groups of particles in order to more accurately study the properties and interactions of the particles. Debunchers are designed to achieve particle dispersion by changing the trajectory or velocity distribution of the particle beam.

Buncher vs Debuncher

Bunchers and debunchers are complementary devices used in particle accelerators to optimize the longitudinal properties of a particle beam. They play critical roles in controlling the bunching (density) and energy spread of the beam, ensuring efficient operation in applications like colliders, free-electron lasers (FELs), and medical accelerators.

Bunchers and debunchers are essential components in particle accelerators, working together to optimize the longitudinal properties of a beam. The buncher increases the current density by forming dense bunches while the debuncher reduces the energy spread and compresses the beam for improved focus and efficiency. Their combined use ensures high-quality beams for applications in particle physics, medical therapy, and advanced light sources.

Buncher

A buncher is designed for modulating the velocity of particles in a beam, causing them to form dense bunches, and it increases the current density of the beam by concentrating particles into tighter groups. The buncher uses an RF cavity to apply an oscillating electric field to the beam, and the particles entering the cavity at different phases of the RF field are either accelerated or decelerated. As the particles travel through a drift tube, the faster particles catch up to the slower ones, forming dense bunches. The buncher introduces some energy spread because particles are accelerated or decelerated to different extents. Due to these features, it's applied in the following field:

•  Klystrons, used as high-power microwave amplifiers.
•  Linear accelerators (LINAC), for medical and industrial applications.
•  Free-Electron Lasers (FEL), to generate coherent, high-intensity light beams.

Debuncher

A debuncher is used to reduce the energy spread and compress the longitudinal size of a particle beam, and it ensures the beam has a narrow energy distribution and is focused for specific applications. The debuncher uses RF cavities or magnetic elements to adjust the velocities of particles in the beam. Particles with higher energies are decelerated, and those with lower energies are accelerated, thus the debuncher synchronizes the particle velocities, reducing the longitudinal size of the beam. The debuncher minimizes the energy spread introduced by the buncher or other processes. Due to these characteristics, it's applied differently compared with buncher:

•  Particle colliders: Improves collision efficiency and resolution.
•  Free-Electron Lasers (FELs): Optimizes the beam for coherent radiation generation.
•  Medical Accelerators: Enhances precision in applications like proton therapy.

Below is the summary of the buncher and debuncher:

Buncher VS Debuncher

Therefore, debuncher are critical components in particle accelerators, used to improve beam quality by reducing energy spread and longitudinal size. It is essential for optimizing the performance of colliders, free-electron lasers, medical accelerators, and synchrotron radiation sources.

Our Model

 

FAB161-36

 

•  161MHz,
•  Beam aperture 36mm, energy 1MeV, cavity length 1000mm,
•  Vacuum: 1.8X10-9mbar
•  Chamber: CW009A/C10100 Cu purity≥99.99%, O<5PPM
•  Q value 15620

 

 

FAB325-34

 

•  325MHz
•  Beam aperture 34mm,
•  Cavity diameter 632mm & length 240mm
•  Q value 22000,
•  Air Gap13mm
•  Maximum output power 8.1KW
•  Chamber: CW008A/C10200 Cu purity≥99.97%, O<10PPM
•  Vacuum leakage rate <1×10-10Pa.m3/s

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