scholarly journals The Midwest Analytical Team for Research Instrumentation of X-Rays (MATRIX) Beamline X-18A at the National Synchrotron Light Source of Brookhaven National Laboratory

2001 ◽  
Author(s):  
Keith J. Bowman
2010 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
B. Kosciuk ◽  
V. Ravindranath ◽  
O. Singh ◽  
S. Sharma

The National Synchrotron Light Source II currently under construction at the Brookhaven National Laboratory is expected to provide unprecedented orbit stability in the storage ring in order to fully utilize the very small emittance of the electron beam. The desire to measure the position of such small beams to high resolution imposes stringent requirements on the thermal and structural stability of the supports for the beam postion monitor (BPM) pick-up electrodes located on multi-pole vacuum chambers and more so on those located upstream and downstream of insertion device sources where the beam size is the smallest. Even with tunnel air temperature expected to be controlled to ±0.1°C, low coefficient of thermal expansion materials is required to meet this level of thermal stability. Here, we present the application of these materials to the design of stable supports for radio frequency (RF)-BPMs as well as the methods of testing their performance.


2010 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
B. Kosciuk ◽  
A. Blednykh ◽  
D. Padrazo ◽  
O. Singh

National Synchrotron Light Source II (NSLS-II), a new state-of-the-art third-generation light source under construction at Brookhaven National Laboratory is expected to have extremely small emittance and extraordinary beam stability. The mechanical requirements for beam diagnostics and instrumentation are exceptionally challenging. Here we present an overview of the mechanical aspects of some NSLS-II diagnostics as well as the performance levels of some systems currently under development.


2004 ◽  
Vol 17 (5) ◽  
pp. 13-29
Author(s):  
Laura Mgrdichian ◽  
Arhonda Gogos ◽  
Peter W. Stephens ◽  
Lawrence Shapiro ◽  
D. Peter Siddons ◽  
...  

2011 ◽  
Vol 1 (MEDSI-6) ◽  
Author(s):  
S. Sharma ◽  
A. Broadbent ◽  
L. Doom ◽  
M. Fallier ◽  
H. C. Hseuh ◽  
...  

National Synchrotron Light Source (NSLS-II) is a new 3 GeV, 500 mA, high-brightness synchrotron light source facility being built at the Brookhaven National Laboratory. Approved for construction in January 2009, the NSLS-II project is expected to be completed in June 2014. In this paper we discuss the present status of the mechanical design and construction of some major components of this facility, namely (i) conventional facilities, (ii) injector complex (iii) storage ring, (iv) RF system and (v) beamlines.


2002 ◽  
Vol 09 (01) ◽  
pp. 185-191 ◽  
Author(s):  
C. JACOBSEN ◽  
T. BEETZ ◽  
M. FESER ◽  
A. OSANNA ◽  
A. STEIN ◽  
...  

Soft X-ray microscopy allows one to study nanoscale heterogeneities in dry and wet environmental science, biological, polymer, and geochemical specimens. Recent advances in instrumentation at the X-1A beamline at the National Synchrotron Light Source at Brookhaven National Laboratory are described. Spectromicroscopy data analysis methods including component mapping and principal component analysis (PCA) are then discussed.


1998 ◽  
Vol 4 (S2) ◽  
pp. 354-355
Author(s):  
J. Maser ◽  
C. Jacobsen ◽  
Y. Wang ◽  
A. Osanna ◽  
B. Winn ◽  
...  

With the steady improvement of x-ray optics with high resolution and efficiency, and continued development or adaptation of different imaging and measuring techniques, soft x-ray microscopy has emerged as a powerful method to image and analyze fully hydrated specimens of several micrometer thickness at sub-optical resolution (for a recent overview, see ref. 1). We report on experiments performed with the cryo scanning transmission x-ray microscope (cryo-STXM), which has recently come into operation at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory.Cryo-STXM uses x-rays with energies between the absorption edge of Carbon (E = 284 eV) and Oxygen (E = 543 eV) from the soft x-ray undulator at the NSLS. Fully hydrated specimens such as eucaryotic cells in water or ice layers of up to 10 micrometer thickness can be imaged without any additional need for contrast enhancing techniques.


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