What question did this study set out to answer?

To determine how very low-energy primary electrons affect secondary electron yield and evaluate their impact on electron cloud evolution and vacuum chamber heat load in particle accelerators.

June 29, 2004Physical Review LettersOpen Access

Can Low-Energy Electrons Affect High-Energy Physics Accelerators?

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Authors

RCR. CiminoStazione Zoologica Anton Dohrn ICI. R. CollinsQueen Mary University of London MFM.A. FurmanAdam Mickiewicz University in Poznań

Discussion

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Implication

Experimental and simulation analysis reveals near-unity electron yields at low energies in accelerator chambers, indicating increased heat loads in particle colliders.

Key Points

To determine how very low-energy primary electrons affect secondary electron yield and evaluate their impact on electron cloud evolution and vacuum chamber heat load in particle accelerators.
Measured total secondary electron yield and secondary electron energy distribution curves as a function of incident-electron energy, targeting energies below 20 eV.
Applied state-of-the-art electron cloud simulation codes to model electron cloud build-up and surface heat loads for the Large Hadron Collider.
Secondary electron yield approached unity as incident primary electron energy approached zero.
Elastically reflected electrons formed the dominant component of total secondary emission in the zero-energy limit.
Simulations predicted that low-energy electron reflection substantially enhances electron cloud generation and surface heat deposition on vacuum chamber walls.

Cite This Study

Cimino et al. (2004) studied this question.

synapsesocial.com/papers/6a7de0dcc6a151781133a67d https://doi.org/10.1103/physrevlett.93.014801

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June 29, 2004Physical Review LettersOpen Access

Can Low-Energy Electrons Affect High-Energy Physics Accelerators?

View Full Paper

Ask AI

Bookmark

Authors

RCR. CiminoStazione Zoologica Anton Dohrn ICI. R. CollinsQueen Mary University of London MFM.A. FurmanAdam Mickiewicz University in Poznań

Discussion

Member takes

Implication

Experimental and simulation analysis reveals near-unity electron yields at low energies in accelerator chambers, indicating increased heat loads in particle colliders.

Key Points

To determine how very low-energy primary electrons affect secondary electron yield and evaluate their impact on electron cloud evolution and vacuum chamber heat load in particle accelerators.
Measured total secondary electron yield and secondary electron energy distribution curves as a function of incident-electron energy, targeting energies below 20 eV.
Applied state-of-the-art electron cloud simulation codes to model electron cloud build-up and surface heat loads for the Large Hadron Collider.
Secondary electron yield approached unity as incident primary electron energy approached zero.
Elastically reflected electrons formed the dominant component of total secondary emission in the zero-energy limit.
Simulations predicted that low-energy electron reflection substantially enhances electron cloud generation and surface heat deposition on vacuum chamber walls.

Cite This Study

Cimino et al. (2004) studied this question.

synapsesocial.com/papers/6a7de0dcc6a151781133a67d https://doi.org/10.1103/physrevlett.93.014801

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