Accession Number : ADA206731

Title :   Ultrasmall Holographic X-Ray Gratings Using Synchrotron Radiation and X-Ray Lithographic Techniques.

Descriptive Note : Final rept. 1 May 87-30 Apr 88,

Corporate Author : OREGON UNIV EUGENE INST OF THEORETICAL SCIENCE

Personal Author(s) : Csonka, Paul L ; Tatchyn, Roman O

PDF Url : ADA206731

Report Date : Nov 1988

Pagination or Media Count : 31

Abstract : In a series of experiments use was made of radiation generated by the undulator magnet, recently installed on ALLADIN at the Synchrotron Radiation Center. Since the properties of that radiation were not previously known, the first step consisted of characterizing the radiation not only spectrally, but also in angular intensity space. The angular characterization was accomplished by allowing the radiation to paa through a pinhole before reaching a gold photodiode. The photodiode measurements served to ascertain the beam profiles along both the horizontal and vertical directions. In terms of the first harmonic frequency, v(1), the first harmonic photon energy, e(1), can be written as hv(1). At hv(1)=50 eV, the measurements confirmed expectations and demonstrated a Gaussian distribution along both axes. Two sets of measurement were performed: one with, the other without interposition of an aluminum filter 800 A(o) thick. Keywords: Grating; Lithography; Undulator. (JHD)

Descriptors :   *X RAY APPARATUS, *GRATINGS(SPECTRA), *LITHOGRAPHY, CYCLOTRON RESONANCE, ENERGY, HARMONICS, PHOTONS, GOLD, PHOTODIODES, SYNCHROTRONS, MEASUREMENT, NORMAL DISTRIBUTION

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE