Zobrazeno 1 - 10
of 42
pro vyhledávání: '"C.I. Zanelli"'
Autor:
S.M. Howard, C.I. Zanelli
Publikováno v:
2007 IEEE Ultrasonics Symposium Proceedings.
Accurate quantification of HIFU fields has been hampered by the inability of traditional hydrophones to survive the high pressures encountered. We present a set of data at high intensities taken with a hydrophone capable of surviving this environment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6da939583fee77f0e381745d4d8ef2c8
https://doi.org/10.1109/ultsym.2007.327
https://doi.org/10.1109/ultsym.2007.327
Publikováno v:
IEEE Symposium on Ultrasonics, 2003.
Results are presented for a new formulation of HIFU phantom material made with polyacrylamide gel and bovine serum albumin. This formulation closely matches the acoustic attenuation as well as the velocity and impedance of tissue, while providing a u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::054420cc68db7b5e8a3cb85284b3eead
https://doi.org/10.1109/ultsym.2003.1293134
https://doi.org/10.1109/ultsym.2003.1293134
Autor:
E.G. LeDet, C.I. Zanelli
Publikováno v:
1999 IEEE Ultrasonics Symposium. Proceedings. International Symposium (Cat. No.99CH37027).
Effective aperture is a commonly used measure of the amount of acoustic or electrical crosstalk between elements in ultrasonic arrays. It is also important to assess element-to-element uniformity and quality of the separation between the elements. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9efccbd9771d33bd5f6f10fce4cf1b70
https://doi.org/10.1109/ultsym.1999.849186
https://doi.org/10.1109/ultsym.1999.849186
Autor:
M.M. Kadri, C.I. Zanelli
Publikováno v:
Proceedings of IEEE Ultrasonics Symposium ULTSYM-94.
The schlieren method, based on Raman-Nath scattering by ultrasonic waves, is extended to pressures up to 8.8t106 Pa (about 5 KW/cm2 for 4 MHz CW waves) by capturing up to the 16th order diffraction harmonics in water. Given the high spatial resolutio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2373719325adfa9badaf6ecb6190ae47
https://doi.org/10.1109/ultsym.1994.401932
https://doi.org/10.1109/ultsym.1994.401932
Publikováno v:
Proceedings of IEEE Ultrasonics Symposium ULTSYM-94.
A large transducer to generate high intensity focused ultrasound (HIFU) for surgery via tissue ablation is described. Designed to address the need for therapeutic applications into deep tissue, the device operates at 1.25 MHz. In order to increase fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::231ac4e0be5a1b81dd65713c38e879d9
https://doi.org/10.1109/ultsym.1994.401959
https://doi.org/10.1109/ultsym.1994.401959
Autor:
C.I. Zanelli, J.A. Jungerman
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 37:323-336
The growing use of internally deposited radionuclides in radioimmunotherapy has established the need for accurate information about the energy deposition by low-energy electrons at the cellular level. To the present time only theoretical calculations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b288459125d9617f3ada4036485c37d3
https://doi.org/10.1016/0883-2889(86)90122-x
https://doi.org/10.1016/0883-2889(86)90122-x
Autor:
J. L. Ullmann, J. W. Watson, J. L. Romero, F. P. Brady, R. Garrett, C.I. Zanelli, D. H. Fitzgerald
Publikováno v:
Physical Review C. 21:1149-1152
The analyzing power in neutron-proton elastic scattering has been measured at 50 MeV. A neutron beam with a polarization of 0.476\ifmmode\pm\else\textpm\fi{}0.017, found by an absolute method, was used to determine the analyzing power at seven angles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb29fede5e0c55864c389b55595e95f5
https://doi.org/10.1103/physrevc.21.1149
https://doi.org/10.1103/physrevc.21.1149
Autor:
T. S. Subramanian, F. P. Brady, C.I. Zanelli, G.A. Needham, C.M. Castaneda, J. L. Ullmann, J. L. Romero
Publikováno v:
Nuclear Instruments and Methods. 171:609-612
Relative measurements of electron capture probabilities for protons of 42.5 and 61.8 MeV are presented. Attention is drawn to some uses of the resulting beam in a 0° neutron beam facility.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0469de12b0cee957267f77e12c6a90ed
https://doi.org/10.1016/0029-554x(80)90478-4
https://doi.org/10.1016/0029-554x(80)90478-4
Publikováno v:
Physical Review C. 33:66-70
The neutron total cross sections of natural calcium and iron have been measured at 35.3, 40.3, and 50.4 MeV with an overall precision better than 3%. The data suggest a smooth energy dependence. Comparisons with optical model predictions are made. Se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d9799b998391cd27a33d42e9aab7caa
https://doi.org/10.1103/physrevc.33.66
https://doi.org/10.1103/physrevc.33.66
Autor:
G.A. Needham, J.L. Ullman, F. P. Brady, D.L. Johnson, P.P. Urone, J. L. Romero, C.I. Zanelli, M.L. Johnson
Publikováno v:
Nuclear Instruments and Methods. 178:427-436
A method for measuring neutron non-elastic cross sections at medium energies is described. The method uses a relatively thick target and a large solid angle neutron detector which intercepts most of the elastically scattered neutrons. The non-elastic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fe7e3f41c64a3dec0c1eb36c791ef6a
https://doi.org/10.1016/0029-554x(80)90821-6
https://doi.org/10.1016/0029-554x(80)90821-6