نتایج جستجو برای: operative gamma camera

تعداد نتایج: 269893  

ژورنال: سنجش و ایمنی پرتو 2017

Intravascular brachytherapy is simulated with Palmaz-Schatz stent, manufactured by Cordis Co. that is radioactived with 188Re source, using the MCNPX code. Functions and dosimetric parameters, were calculated in  cylindrical coordinates and results compared with the latest standards and AAPM TG-60 group offers, published experimental data and also other performed simulations with various p...

2014
Wang Yang Feng Yao

Phase Shifting Profilometry is a method of structured light whose three-dimensional reconstructions are susceptible to error from Gamma distortion. In practice, the luminance nonlinearity caused by the Gamma distortion effect of a digital video projector and a digital camera yields undesired fringe intensity changes, which substantially reduce the measurement accuracy, and while the effects of ...

2001
Maria Nerina Cinti Roberto Pani Rosanna Pellegrini Claudio Bonifazzi Raffaele Scafè Giuseppe De Vincentis Franco Garibaldi Francesco Cusanno Renato Campanini Nico Lanconelli Alessandro Riccardi

A new gamma camera dedicated to scintimammography (single photon emission mammography—SPEM) now has a full-breast field of view. One can clinically examine a mildly compressed breast with a cranio-caudal-like projection as one would in X-ray mammography. This camera is based on pixelated scintillation arrays and position sensitive photomultiplier tubes. By reducing the collimator-tumor distance...

2014
Yasushi Yamamoto Masahisa Onoguchi Kazunori Kawakami Masuo Haramoto Rei Wake Jun Horiguchi Hajime Kitagaki

OBJECTIVE We examined the difference of the effect by data to revise a gamma camera difference. The difference-correction method of the camera is incorporated in eZIS analysis. METHODS We acquired single photon emission computed tomography (SPECT) data from the three-dimensional (3D) Hoffman brain phantom (Hoffman), the three-dimensional brain phantom (3D-Brain), Pool phantom (pool) and from ...

Journal: :iranian journal of nuclear medicine 2001
philip cohen vesna sossi tom ruth michael boldt kelly hudkins

abstract is not available

2002
S. Kabuki K. Tsuchiya K. Okumura R. Enomoto T. Uchida H. Tsunoo F. Kajino A. Asahara H. Katagiri A. Kawachi H. Muraishi

A Cherenkov imaging camera for the CANGAROO-III experiment has been developed for observations of gamma-ray induced air-showers at energies from 1011 to 10 eV. The camera consists of 427 pixels, arranged in a hexagonal shape at 0.17◦ intervals, each of which is a 3/4-inch diameter photomultiplier module with a Winston-cone–shaped light guide. The camera was designed to have a large dynamic rang...

1993
H. Muraishi Y. Muraki T. Naito

A Cherenkov imaging camera for the CANGAROO-III experiment has been developed for observations of gamma-ray induced air-showers at energies from 1011 to 1014 eV. The camera consists of 427 pixels, arranged in a hexagonal shape at 0.17◦ intervals, each of which is a 3/4-inch diameter photomultiplier module with a Winston-cone–shaped light guide. The camera was designed to have a large dynamic ra...

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