Zobrazeno 1 - 10
of 11
pro vyhledávání: '"J. C. Riordan"'
Phosphor imaging plates (IPs) have been calibrated and proven useful for quantitative x-ray imaging in the 1 to over 1000 keV energy range. In this paper we report on calibration measurements made at XUV energies in the 60 to 900 eV energy range usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22f06277a2f279a84c2a164e50cfd54a
Autor:
J. E. Faulkner, J. C. Riordan, J. S. Meachum, D. Kortbawi, I.S. Roth, B. A. Whitton, J.R. Goyer, R. S. Mendenhall
Publikováno v:
Review of Scientific Instruments. 63:4792-4794
An indirect voltage measurement of a relativistic electron beam diode can be deduced from the high energy tail of its bremsstrahlung spectrum. Our spectrometer contains seven silicon pin diode detectors with filters optimized to cover the 0.5–2 MV
Publikováno v:
Journal of Instrumentation. 4:P03007-P03007
In a proof-of-principle test, we measured how the L-3 Pulse Sciences MBS (~200 keV peak voltage) Bremsstrahlung spectrum changed in time using a pair of filter-fluorescer channels, one at 41 ± 18 keV and another at 87 ± 27 keV. This demonstrates an
Publikováno v:
Journal of Instrumentation. 2:P07001-P07001
High power x-ray sources built for nuclear weapons effects testing are evolving toward larger overall diameters and smaller anode cathode gaps. We describe a framing camera developed to measure the time-evolution of these 20-50 ns pulsed x-ray source
Autor:
S L. Wong, Stephen M. Seltzer, L. Pressley, B.H. Failor, D. Y. Lojewski, S. Seiler, C. M. O’Brien, Lawrence T. Hudson, J C Riordan
Publikováno v:
Review of Scientific Instruments. 77:10F314
A bent-crystal Laue {or Cauchois [J. Phys. Radium 3, 320 (1932)] geometry} spectrograph is a good compromise between sensitivity and spectral resolution for measuring x-ray spectra (15
Publikováno v:
Journal of Microscopy. 135:347-351
SUMMARY A novel flash X-ray source, the gas jet plasma source, has been used for contact X-ray microscopy. Using a wavelength range of 2–7 nm a resolution of the order of 30 nm can be obtained. The gas jet plasma source provides a new and unique to
Autor:
J. S Pearlman, J. C. Riordan
Publikováno v:
Journal of Vacuum Science and Technology. 19:1190-1193
An imploding gas jet plasma has been developed as a soft x‐ray source for lithographic applications. The plasma is an efficient source of krypton L radiation, which closely matches the wavelength of tungsten anode electron bombardment sources. Resi
Publikováno v:
Plasma Physics. 20:139-155
Interchange modes were investigated experimentally in a multiple-mirror field in which the field line curvature was adjustable both by varying the mirror ratio and by adding linked-quadrupole fields. Experiments were performed both with a thermal lit
Autor:
J. C. Riordan, Keith Yates
Publikováno v:
Canadian Journal of Chemistry. 43:2328-2335
Values of the HA acidity function have been determined for 0–35% hydrochloric acid using a set of amide indicators. The indicator pK values agree with those previously obtained in sulfuric acid. The HA scale decreases less steeply than H0 in the hi
Publikováno v:
Applied Physics Letters. 39:848-850
Detailed observations of the dynamics of pulsed generator driven imploding wire arrays are presented. Peak velocities up to 20 cm/μs are measured. The peak implosion velocity is given as a function of array mass and is found to decrease monotonicall