DESIGN OF VISIBLE DIAGNOSTIC BEAMLINE FOR NSLS2 STORAGE RING

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

OSTI ID:1013542

Cheng, W; Fernandes, H; Hseuh, H; Kosciuk, B; Krinsky, S; Singh, O

A visible synchrotron light monitor (SLM) beam line has been designed at the NSLS2 storage ring, using the bending magnet radiation. A retractable thin absorber will be placed in front of the first mirror to block the central x-rays. The first mirror will reflect the visible light through a vacuum window. The light is guided by three 6-inch diameter mirrors into the experiment hutch. In this paper, we will describe design work on various optical components in the beamline. The ultra high brightness NSLS-II storage ring is under construction at Brookhaven National Laboratory. It will have 3GeV, 500mA electron beam circulating in the 792m ring, with very low emittance (0.9nm.rad horizontal and 8pm.rad vertical). The ring is composed of 30 DBA cells with 15 fold symmetry. Three damping wigglers will be installed in long straight sections 8, 18 and 28 to lower the emittance. While electrons pass through the bending magnet, synchrotron radiation will be generated covering a wide spectrum. There are other insertion devices in the storage ring which will generate shorter wavelength radiation as well. Synchrotron radiation has been widely used as diagnostic tool to measure the transverse and longitudinal profile. Three synchrotron light beam lines dedicated for diagnostics are under design and construction for the NSLS-II storage ring: two x-ray beam lines (pinhole and CRL) with the source points from Cell 22 BM{_}A (first bending in the DBA cell) and Cell22 three-pole wiggler; the third beam line is using visible part of radiation from Cell 30 BM{_}B (second bending magnet from the cell). Our paper focuses on the design of the visible beam line - SLM.

• 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: 1013542
• Report Number(s): BNL-94901-2011-CP; 39KC02000; TRN: US1102519
• Resource Relation: Conference: Particle Accelerator Conference 2011; New York, NY; 20110328 through 20110401
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BENDING
BNL
BRIGHTNESS
CONSTRUCTION
DAMPING
DESIGN
ELECTRON BEAMS
ELECTRONS
MAGNETS
MIRRORS
MONITORS
RADIATIONS
STORAGE RINGS
SYMMETRY
SYNCHROTRON RADIATION
SYNCHROTRONS
WAVELENGTHS
first mirror to block the central
generated covering a wide spectrum
Cell 22
national synchrotron light source