English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The main `bottleneck' limiting the beam power in circular machines is causedby space charge effects that produce beam instabilities. To increase maximallythe beam power of a `proton driver', it is proposed to build a facilityconsisting solely of a 2.5-GeV injector linac (PI) and a 20-GeV pulsedsuperconducting linac (SCL). Such a facility could be constructed using theexisting KEK accelerator infrastructure. The PI, based on the EuropeanSpallation Source (ESS) linac, would serve both as an injector to the SCL and asource of proton beams that could be used to copiously produce, e.g., neutronsand muons. Protons accelerated by the SCL would be transferred through the KEKTristan ring in order to create neutrino, kaon and muon beams for fixed-targetexperiments. At a later stage, a 70-GeV proton synchrotron could be installedinside the Tristan ring. The SCL, comprising 1.3-GHz ILC-type rf cavities,could also accelerate polarized or unpolarized electron beams. Afteracceleration, electrons could be used to produce polarized positrons, or maytraverse an XFEL undulator.

A Multi-MW Proton/Electron Linac at KEK