Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Walter C. McDermott"'
Publikováno v:
Acoustics Research Letters Online. 5:7-12
The optoacoustic effect has been used to study the concentration of gaseous carbon disulfide in a binary mixture with air. A 1.25-MW nitrogen laser having a wavelength of 337 nm and pulse duration of 800 ps was used as the optoacoustic source. Microp
Publikováno v:
The Journal of the Acoustical Society of America. 141:3875-3875
The tonal characteristics of five different types of mouthpieces for the tenor saxophone will be compared. The mouthpieces are all widely available and used by present-day musicians; some are designed and marketed for general use and others are inten
Publikováno v:
The Journal of the Acoustical Society of America. 137:2294-2294
The Transfer function method was used to determine the phase speed in a bubbly liquid at the single bubble resonant frequency. The Transfer function technique is widely used to determine the impedance of an absorbing sample. Once the impedance of the
Publikováno v:
The Journal of the Acoustical Society of America. 137:2339-2339
An experimental investigation designed to quantify the effects of individuals on the tonal quality of a given saxophone, mouthpiece and reed combination, as well as a clarinet, mouthpiece, and reed combination has been performed. Several musicians, u
Autor:
Ian N. Evans, Timothy J. Norton, Edwin M. Kellogg, Bradford J. Wargelin, Frank Scholze, Walter C. McDermott, Jutta M. Auerhammer, G. Brandt, Gerhard Ulm, Reiner Thornagel
Publikováno v:
SPIE Proceedings.
The Smithsonian Astrophysical Observatory uses the HRMA X- ray Detection System (HXDS) to calibrate the High-Resolution Mirror Assembly of the Advanced X-ray Astrophysics Facility AXAF. Apart from two high-purity-germanium solid-state detectors (SSDs
Autor:
Robert A. Austin, Richard J. Edgar, Diab Jerius, Daniel A. Schwartz, Allyn F. Tennant, Ping Zhao, C. G. Zirnstein, Martin C. Weisskopf, Ronald F. Elsner, Jeffery J. Kolodziejczak, Bradford J. Wargelin, Dale E. Graessle, Terrance J. Gaetz, Martin E. Sulkanen, Walter C. McDermott, Leon P. Van Speybroeck, Douglas A. Swartz, Stephen L. O'Dell
Publikováno v:
SPIE Proceedings.
The AXAF X-ray mirrors underwent thorough calibration using the X-ray Calibration Facility (XRCF) at the Marshall Space Flight Center in Huntsville, AL from late 1996 to early 1997. The x-ray calibration made novel use of the x-ray continuum from a c
Publikováno v:
Space Telescopes and Instruments V.
As part of the extensive ground testing of the AXAF, x-ray detectors of standard design were used as secondary absolute calibrators. In order to realize the overall facility calibration goal, these detectors need to be calibrated in turn on a primary
Publikováno v:
Grazing Incidence and Multilayer X-Ray Optical Systems.
The design, performance, and calibration of the seven flow proportional counters (FPCs) used during AXAF ground calibration are described. Five of the FPCs served as beam normalization detectors (BNDs), and two were used in the telescope focal plane
Autor:
Jeffery J. Kolodziejczak, Ronald F. Elsner, Allyn F. Tennant, Martin E. Sulkanen, C. G. Zirnstein, Martin C. Weisskopf, Walter C. McDermott, Douglas A. Swartz, Stephen L. O'Dell, Robert A. Austin
Publikováno v:
Grazing Incidence and Multilayer X-Ray Optical Systems.
X-ray calibration of the Advanced X-ray Astrophysics Facility (AXAF) observatory at the MSFC X-Ray Calibration Facility (XRCF) made novel use of the x-ray continuum from a conventional electron-impact source. Taking advantage of the good spectral res
Autor:
Bradford J. Wargelin, J. M. Rosenberg, Edwin M. Kellogg, Ian N. Evans, Walter C. McDermott, Mark Ordway
Publikováno v:
Grazing Incidence and Multilayer X-Ray Optical Systems.
The design and implementation of the high speed imager (HSI) microchannel plate based imaging x-ray detector used for the calibration of the Advanced X-ray Astrophysics Facility (AXAF) high resolution mirror assembly (HRMA) and objective transmission