[PEPPo] Proof-of-principle ,e,+, source for future colliders
Shaoheng Wang
wang at jlab.org
Thu Feb 1 23:55:19 EST 2024
Jay,
Thanks. That is very helpful for the capture cavity design.
Shaoheng
________________________________
From: PEPPo <peppo-bounces at jlab.org> on behalf of Jay Benesch via PEPPo <peppo at jlab.org>
Sent: Thursday, February 1, 2024 4:04 PM
To: peppo at jlab.org <peppo at jlab.org>
Subject: [PEPPo] Proof-of-principle ,e,+, source for future colliders
https://journals.aps.org/prab/abstract/10.1103/PhysRevAccelBeams.27.013401
6 GeV electron beam and thick target. I send this only because of the
fragment starting at the bottom of page one:
as well as a novel standing wave solution for the rf cavities that
provides a large iris aperture
which may be of interest.
The PSI Positron Production (P 3 or P-cubed) experiment is a e þ source
and capture system with the
potential to increase by an order of magnitude the state-of-the-art e þ
yield normalized to the drive linac
energy, a highly desirable goal for future colliders. The experiment is
framed in the FCC-ee injector study
and will be hosted at SwissFEL, located at the Paul Scherrer Institute
in Switzerland. This paper presents
the P 3 project at an advanced stage, with an emphasis on a capture
system featuring a novel e þ matching
device based on high-temperature superconducting solenoids, followed by
two large aperture rf cavities
surrounded by normal-conducting solenoids. The diagnostics design is
also introduced, including monitors
of charge, energy spectrum, and bunch-by-bunch longitudinal profile
simultaneously for secondary e þ and
e − . The last chapter of the text overviews the currently ongoing
installation at SwissFEL, including the
beam transfer line, rf network, radiation protection, and other relevant
activities toward the operation with
e þ in the coming years.
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