A modular optics design for the LBNE beamline

Johnstone, John A. ; /Fermilab

关键词: BEAM POSITION;    BEAMS;    BENDING;    BODY;    DESIGN;    DIPOLES;    FOCUSING;    IONS;    LEVELS;    MAGNETS;    MONITORS;    OPTICAL PROPERTIES;    OPTICS;    ORBITS;    PROTONS;    QUADRUPOLES;    SPACE Accelerators;   

DOI  :  10.2172/1002006
RP-ID  :  FERMILAB-TM-2475-APC
PID  :  OSTI ID: 1002006
Others  :  TRN: US1100813

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Protons extracted from the Main Injector (MI) in the MI-60 straight section are transported 84 m through quadrupole Q106 in the NuMI stub, at which point two 6-3-120 vertical switching magnets, followed by three EPB vertical dipoles, steer the beam into the main body of the LBNE beamline. From Q106 in NuMI the LBNE beamline transports these protons 722.0 m to the LBNE target, located 41.77 m (137.0 ft) below the MI beamline center (BLC) elevation, on a trajectory aimed towards DUSEL. Bending is provided (predominantly) by 34 long (6 m) MI-style IDA/IDB and 8 short (4 m) IDC/IDD dipoles [through 48.36{sup o} horizontally and -5.844{sup o} (net) vertically]. Optical properties are defined by 49 quadrupoles (grouped functionally into 44 focusing centers) of the proven MI beamline-style 3Q60/3Q120 series. All focusing centers are equipped with redesigned MI-style IDS orbit correctors and dual-plane beam position monitors (BPM's). Ample space is available in each arc cell to accommodate ion pumps and diagnostic instrumentation. Parameters of the main magnets are listed in a table.