Zobrazeno 1 - 10
of 52
pro vyhledávání: '"F. Krispel"'
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 53:2465-2470
Research into surface acoustic wave (SAW) devices began in the early 1970s and led to the development of high performance, small size, and high reproducibility devices. Much research has now been done on the application of such devices to consumer el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::768a6099b9c49192fe47f0a82a9c0a14
https://doi.org/10.1109/tuffc.2006.194
https://doi.org/10.1109/tuffc.2006.194
Publikováno v:
Sensors and Actuators A: Physical. :403-407
Surface acoustic devices have been shown to be suitable not only for signal processing but also for sensor applications. In this paper high temperature surface acoustic wave devices based on gallium orthophosphate have been fabricated, using a lift-o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a55a0d7876fbe91afd700c54b63acc35
https://doi.org/10.1016/j.sna.2005.01.038
https://doi.org/10.1016/j.sna.2005.01.038
Autor:
F. Krispel, W. Hohenau
Publikováno v:
teme. 59:48-53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::513183411a2e11e733431b03777996ea
https://doi.org/10.1524/teme.1992.59.2.48
https://doi.org/10.1524/teme.1992.59.2.48
Autor:
F. Krispel, Timothy G. Ochran, Kenneth R. Hogstrom, A. L. Boyer, Tyvin A. Rich, Almon S. Shiu, S.M. Kirsner
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 18:1223-1232
A set of circular collimators and treatment cones from 5 to 12 cm diameter has been designed for an intraoperative accelerator (6–18 MeV) that has an optical docking system. Electron beam scattering theory has been used to minimize their weight whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::718740878a5d7f67bd6b7c7aaf9b7116
https://doi.org/10.1016/0360-3016(90)90461-r
https://doi.org/10.1016/0360-3016(90)90461-r
Publikováno v:
2007 IEEE International Frequency Control Symposium Joint with the 21st European Frequency and Time Forum.
This paper presents some of the more relevant results concerning the mass-loading influence on the characteristics (effective mass-loading, motional inductance, quality factor) of AT-cut quartz, Y-cut langasite resonators and AT-cut gallium phosphate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36497dc59bdc5079550d07e1d4e5d637
https://doi.org/10.1109/freq.2007.4319163
https://doi.org/10.1109/freq.2007.4319163
Publikováno v:
Proceedings of the Interntional Congress on Ultrasonics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22ca55ad80db464033716d29365c9ffb
https://doi.org/10.3728/icultrasonics.2007.vienna.1240_mateescu
https://doi.org/10.3728/icultrasonics.2007.vienna.1240_mateescu
Publikováno v:
IEEE Symposium on Ultrasonics, 2003.
This paper discusses SAW resonators. The SAW device consists of a piezoelectric substrate with a metalization. It is shown that the sytems langasite-Pt and gallium orthophosphate-Pt are able to fulfill the demands for a high temperature operation. An
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ea89aec45a19e2e33d99bdfe66f9594
https://doi.org/10.1109/ultsym.2003.1293385
https://doi.org/10.1109/ultsym.2003.1293385
Publikováno v:
18th European Frequency and Time Forum (EFTF 2004).
Gallium phosphate, GaPO4, is a piezoelectric crystal material homeotypic to quartz which features outstanding thermal stability up to 970°C, higher coupling than quartz and good temperature compensation for resonant applications. We report results i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e97c6effdbb102dda28dfc73e6cf0748
https://doi.org/10.1049/cp:20040929
https://doi.org/10.1049/cp:20040929
Publikováno v:
The British journal of radiology. 67(799)
We have mounted a transmission liquid crystal display unit on the head of a radiotherapy simulator and projected, using the field light, a digitized fluoroscopic image with treatment prescription overlay. It is suggested that this approach (i) can ai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::bf94411106f7df66a2bcdf78231ef000
https://pubmed.ncbi.nlm.nih.gov/8062000
https://pubmed.ncbi.nlm.nih.gov/8062000
Publikováno v:
The British Journal of Radiology. 67:649-650
We have mounted a transmission liquid crystal display unit on the head of a radiotherapy simulator and projected, using the field light, a digitized fluoroscopic image with treatment prescription overlay. It is suggested that this approach (i) can ai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb17cc3c45477f808547e2d5b4a09c6a
https://doi.org/10.1259/0007-1285-67-799-649
https://doi.org/10.1259/0007-1285-67-799-649