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Stage 2 of 5

PS Booster

The PS Booster receives H- ions from Linac 4, strips electrons during injection, and raises the energy to about 2 GeV in a compact ring train design. In this simplified model, stacked rings are shown as synchronized energy bands.

Input

H- packet from Linac 4

Process

Injection, electron stripping, synchrotron acceleration

Output

Proton beam ~2 GeV

Energy

~2 GeV

Interactive simulator

How the beam moves through this stage.

Stripping, RF capture, and tune controls are simplified into a single handoff stage.

PS Booster4 stacked rings · 2 GeVring 1ring 2ring 3ring 4H− from Linac 4recombined → PSCHARGE-EXCHANGE INJECTIONH− → p+ (both electrons stripped by a foil)Four superimposed rings share one injector pulse and accelerate protons to 2 GeV in parallel.
Particleproton
Energy~2 GeV
Beam formatbunch
Speed (v / c)94.76%

At this energy the proton travels about 284,097 km/s — 94.76% of the speed of light (c = 299,792 km/s). Each stage of the injector chain pushes it measurably closer to c.

Scale note

Compact chain before main ring stack-up

Key terms

Synchrotron, RF cavity, and Bunch.

What happens, in order

  1. 01InputH- packet from Linac 4
  2. 02ProcessInjection, electron stripping, synchrotron acceleration
  3. 03OutputProton beam ~2 GeV

Key terms: Synchrotron, RF cavity, and Bunch.

Quick facts

Technology

Synchrotron booster

electron stripping on entry

Main role

Intensity buildup and transfer to PS

Particle transformation

H- to proton

Typical energy

~2 GeV

Sources

Where these numbers come from.

Guided tour

Guided learning path

Four steps: follow the beam, see the aftermath, compare with spacetime signals, then test your intuition.

Continue · See the collision aftermath
  1. 01 · You are here

    Follow the beam

    Start with the injector chain so the rest of the site follows a physical sequence.

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  2. 02 · Next

    See the collision aftermath

    See which detectors catch which particles after a collision.

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  3. 03 · Next

    Compare with spacetime signals

    Switch to gravitational waves: tune mass, distance, and noise to find the signal.

    Open
  4. 04 · Next

    Test your intuition

    Short quizzes on accelerator ordering, detector choice, and signal tuning.

    Open