Proposal for continuously-variable neutrino beam energy for the NuMI facility

Kostin, Mikhail ; Kopp, Sacha ; U., /Texas ; Messier, Mark ; U., /Harvard ; Harris, Deborah A. ; Hylen, Jim ; Para, Adam ; /Fermilab

Fermi National Accelerator Laboratory

关键词: Statistics;    Accelerators, Instrumentation;    Beam Monitoring;    43 Particle Accelerators;    Targets Accelerators, Instrumentation;   

DOI  :  10.2172/892412
RP-ID  :  FERMILAB-TM-2353-AD
RP-ID  :  AC02-76CH03000
RP-ID  :  892412

美国|英语

来源: UNT Digital Library

【 摘 要 】

The NuMI Facility was intended to be flexibly changed between 3 energies of beams, LE, ME, and HE. However, the changeover requires extensive downtime to move and realign horns and the target. We propose to implement a flexible arrangement where the target can be remotely moved in the beamline direction to change the beam energy and the horns remain fixed. In addition to having the attractive feature of keeping the horn optics fixed, the motion of the target can be performed more quickly and hence on a more frequent basis. We discuss potential increases in statistics in the high energy region, systematic cross-checks available, and the improved beam monitoring capabilities with such variable energy beams.