SRC Users' Meeting - Synchrotron Radiation Center - University of ...

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in the data acquisition chamber. The various residual ion, neutral, and photon beams exit through an aperture in the outer hemisphere of the analyzer and are detected by a Faraday cup detector. The interaction region has magnetic field coils to null the earth's magnetic field throughout this region. The predicted continuum state structure (energy locations, widths, and magnitudes) are very sensitive to specific atomic structure theory approximations, and experimental measurements such as the ones currently proposed will provide stringent tests of our understanding of the electronelectron and electron-nucleus interactions that occur in atoms and ions. References [1] G.F. Gribakin, A.A. Gribakina, B.V. Gul'tsev, and V.K. Ivanov, J. Phys. B: At., Mol., Opt. Phys. 25, 1757 (1992). [2] Jose' Luis Sanz-Vicario and Eva Lindroth, Phys. Rev. A 68, 012702 (2003). [3] D. Calabrese, A.M. Covington, D. Carpenter, J.S. Thompson, T.J. Kvale, and R. Collier, J. Phys. B: At., Mol., Opt. Phys. 30, 4791 (1997). [4] A.M. Covington, D. Calabrese, W.W. Williams, J.S. Thompson, and T.J. Kvale, Phys. Rev. A 56, 4746 (1997). [5] W.W. Williams, D.L. Carpenter, A.M. Covington, J.S. Thompson, T.J. Kvale, and D.G. Seely, Phys. Rev. A 58, 3582 (1998).
CHEMOMECHANICAL PROPERTIES OF ANTIWEAR FILMS USING X-RAY ABSORPTION MICROSCOPY AND NANOINDENTATION TECHNIQUES Mark A. Nicholls 1 , G. Michael Bancroft 1 , Peter R. Norton 1 *, Masoud Kasrai 1 , Gelsomina De Stasio 2 , Bradley H. Frazer 2 , and Lisa M. Wiese 3 1 Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 2B7 2 Department of Physics, University of Wisconsin-Madison, Madison, WI 53706, USA 3 Syncrotron Radiation Center, Univ. of Wisconsin-Madison, Stoughton, WI 53589, USA ABSTRACT The first chemomechanical comparison between an antiwear film formed from a solution containing zinc dialkyl-dithiophophates (ZDDPs) to a solution containing ZDDP plus a detergent (ZDDPdet) has been performed. X-ray absorption near edge structure (XANES) analysis has shown a difference in the type of polyphosphate, between each film. The ZDDPdet film has been found to contain short-chain polyphosphates throughout and contain a large amount of CaCO 3 . X-ray photoelectron emission microscopy (X-PEEM) has provided detailed spatially resolved microchemistry of the films. The large Intensity (arb. units) [A] [B] [C] [D] [E] [F] 1 2 s' 3 b a c s 1 unreacted ZDDP Zn 10 P 18 O 55 Ca 3 (PO 4 ) 2 ZDDP + Det. X-PEEM long-chain internal model* shorter-chain internal model* map-ave. long-chain pads in the ZDDP antiwear film have [G] map-ave. shorter-chain long-chain polyphosphates at the surface [H] and shorter-chain polyphosphates are 130 140 150 160 Photon Energy (eV) found in the lower lying regions. The
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Welcome to the 36 th SRC Users’ M
Page 4 and 5:
12:20 - 1:10 Lunch 1:10 -1:45 Poste
Page 6 and 7: Administration Executive Director D
Page 8 and 9: STATUS OF THE SRC BEAMLINES AND INS
Page 10 and 11: ACCELERATOR DEVELOPMENTS Ken Jacobs
Page 12 and 13: HIGH ENERGY RESEARCH POSSIBILITIES
Page 14 and 15: ATOMICALLY UNIFORM THIN FILMS ON SI
Page 16 and 17: calculated binding energies of the
Page 18 and 19: MANY-ELECTRON EFFECTS ON THE XE 5S
Page 20 and 21: PHOTOELECTRON SPECTROMETRY OF ATOMI
Page 22 and 23: PHOTOEMISSION STUDY OF USb AND UTe
Page 24 and 25: CANADIAN SYNCHROTRON RADIATION FACI
Page 26 and 27: SELF-ASSEMBLY OF BLOCK COPOLYMERS O
Page 28 and 29: A B S T R A C T S
Page 30 and 31: Photoemission spectra, a.u. -0.3 -0
Page 32 and 33: THE INITIAL AND FINAL STATE BANDS I
Page 34 and 35: TRANSITION LAYERS AT BURIED FERROMA
Page 36 and 37: LOW-DIMENSIONAL ELECTRONS AT SILICO
Page 38 and 39: SUBCELLULAR DISTRIBUTION OF MOTEXAF
Page 40 and 41: LINEAR POLARIZATION MEASUREMENTS OF
Page 42 and 43: Fig.1: Photoemission spectra of opt
Page 44 and 45: The sample manipulator has a cool d
Page 46 and 47: Cr and Fe but for these U systems t
Page 48 and 49: [4] G. -H. Gweon, J. W. Allen, and
Page 50 and 51: References [1] S. Cho, Y. Kim, A. D
Page 52 and 53: [3] D. L. Mills, Physical Review B
Page 54 and 55: CHARACTERIZATION OF SULPHATE INTERA
Page 58 and 59: spatially resolved chemistry of the
Page 60 and 61: THE RELATIONSHIP BETWEEN PHOSPHATE
Page 62 and 63: PHOTOEMISSION STUDIES OF QUANTUM WE
Page 64 and 65: Ag surface state such that it moves
Page 66 and 67: HIGH-RESOLUTION STUDY OF THE LITHIU
Page 68 and 69: RELATIVE PARTIAL CROSS SECTIONS AND
Page 70 and 71: Christian Ast Max-Planck Institute
Page 72 and 73: David L. Huber Physical Sciences La
Page 74 and 75: Tom Miller University of Illinois a
Page 76 and 77: Eric Wiedemann University of Wiscon
Page 78 and 79: Pete Hagen Phone: (608) 877-2154 Em
Page 80: NOTES
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