PROGRESS WITH NSLS-II INJECTION STRAIGHT SECTION DESIGN

Conference · Mon Mar 28 00:00:00 EDT 2011

OSTI ID:1016637

Shaftan, T; Blednykh, A; Casey, B; Dalesio, B; Faussete, R; Ferreira, M; Fliller, R; Ganetis, G; Heese, R; Hseuh, H -C; Job, P K; Johnson, E; Kosciuk, B; Kowalski, S; Padrazo, D; Parker, B; Pinayev, I; Sharma, S; Singh, O; Spataro, C

The NSLS-II injection straight section (SR) consists of pulsed and DC bumps, septa system, beam trajectory correction and diagnostics systems. In this paper we discuss overall injection straight layout, preliminary element designs, specifications for the pulsed and DC magnets and their power supplies, vacuum devices and chambers and diagnostics devices. Prior to selecting the current 'conventional' design of the injection straight section we analyzed an option of injection via pulsed multipole pioneered at PF-AR. We found that this promising approach was not suited to the NSLS-II storage ring optics, since it would require a impractically compact arrangement of the injection straight section components and a complex modification of the transport line optics due to the strong focusing of the injected beam passing off the pulsed multipole axis. In addition, the requirement for a small injection transient of the stored beam orbit severely constrains the vertical alignment tolerance of the pulsed multipole. The design of the NSLS-II injection straight section is now completed with exception of transition chamber details, which will be adjusted to accommodate the actual layouts of the pulsed magnets.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
• Sponsoring Organization: DOE - OFFICE OF SCIENCE
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1016637
• Report Number(s): BNL-94937-2011-CP; 39KC02000; TRN: US1103081
• Resource Relation: Conference: Particle Accelerator Conference PAC11; New York, NY; 20110328 through 20110401
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
ALIGNMENT
DESIGN
FOCUSING
MAGNETS
MODIFICATIONS
MULTIPOLES
OPTICS
POWER SUPPLIES
SPECIFICATIONS
STORAGE RINGS
TOLERANCE
TRANSIENTS
TRANSPORT
geometry of the injected and stored beams at the septum exit
acceptable oscillation amplitude of the stored beam
national synchrotron light source