Speaker
Nikolai Mokhov
(FERMILAB)
Description
The principal challenges arising from beam-induced energy deposition
in superconducting magnets at hadron colliders are described.
Radiation constraints are analyzed that include quench stability,
dynamic heat loads on the cryogenic system, radiation damage limiting
the component lifetime, and residual dose rates related to hands-on
maintenance. These issues are especially challenging for the
interaction regions (IR). Only with an appropriate IR layout, magnet
design, materials, and a set of collimators and absorbers can one
provide adequate mitigation of these problems that is desribed in
details in this talk. Quench levels in the Tevatron, its collimation
system performance and fast beam loss events are discussed.
A system to protect IR magnets at normal operation and unsynchronized
beam abort is described for the LHC at a nominal luminosity as well as
for possible upgrade scenarios.
Author
Nikolai Mokhov
(FERMILAB)
