نتایج جستجو برای: line detectors

تعداد نتایج: 443077  

سعید محمدی, ,

  Yrast states in mirror nuclei 55Co and 55Ni have been populated with a radioactive ion beam using the Isotope Separator On-Line method. A shielded array of 7 Compton suppressed germanium detectors recorded reaction gamma-rays. For channel selection, an array of 128 independent silicon detectors was used to differentiate exit channels with different number of proton and alpha particles emitted...

Journal: :iranian journal of medical physics 0
abdolkazem ansarinejad istituto nazionale di fisica nucleare (infn), via giuria 1, 10125 torino, italy dipartimento di fisica sperimentale, universita’ di torino, via giuria 1, 10125 torino, italy presently at the nuclear science research school, nuclear science and technology research institute, tehran, iran

introduction hadron-therapy is an effective technique used to treat tumors that are located between or nearby vital organs. the italian national center of oncological hadron-therapy (cnao) has been realized as the first facility in italy to treat very difficult tumors with protons and carbon ions. the on-line monitor system for cnao has been developed by the department of physics of the univers...

جعفرزاده خطیبانی, مرتضی, رحیقی, جواد, کارگر, زهره, کرمی, هاله,

In this paper a one dimentional position-sensitive X-ray gas detector has been designed, simulated and constructed based on Multi Wire Proportional Chamber (MWPC) with delay line position readout. These kinds of detectors are useful in soft X-ray imaging and are capable of being extended to two dimensions position readout easily. The position resolution of this detector is estimated to be 230µm...

Journal: :journal of medical signals and sensors 0
mohsen hajizadeh-safar m ghorbani s khoshkharam z ashrafi

gamma camera is an important apparatus in nuclear medicine imaging. its detection part is consists of a scintillation detector with aheavy collimator. substitution of semiconductor detectors instead of scintillator in these cameras has been effectively studied. in this study, it is aimed to introduce a new design of p-n semiconductor detector array for nuclear medicine imaging. a p-n semiconduc...

Journal: :IEEE transactions on image processing : a publication of the IEEE Signal Processing Society 2000
Julian F. Y. Cheung Heskia Heskiaoff Steven H. Billis Peter S. Cheng

In this research, we present a methodology for extracting very narrow lines in correlated noisy environments. The approach is a generalization of the analysis of variance applied to the symmetrically balanced incomplete-blocks design. It encompasses many well-known algorithms when subjected to more restrictive conditions. The detector is robust and superior to the polynomial-approximation-based...

1997
C. J. S. Damerell

The development of silicon microstrip detectors for high luminosity application at the Large Hadron Collider (LHC) is described. The technical choices are most severely restricted by the anticipated radiation damage. The arguments are presented which led to the selection of the base line detectors for the silicon tracker of the LHC detector ATLAS: sandwiches of singlesided detectors of n-strips...

Journal: :Pattern Recognition 2015
Mark Brown David Windridge Jean-Yves Guillemaut

Here we present a novel, information-theoretic salient line segment detector. Existing line detectors typically only use the image gradient to search for potential lines. Consequently, many lines are found, particularly in repetitive scenes. In contrast, our approach detects lines that define regions of significant divergence between pixel intensity or colour statistics. This results in a novel...

1997
Hartmut F.-W. Sadrozinski

The development of silicon microstrip detectors for high luminosity application at the Large Hadron Collider (LHC) is described. The technical choices are most severely restricted by the anticipated radiation damage. The arguments are presented which led to the selection of the base line detectors for the silicon tracker of the LHC detector ATLAS: sandwiches of singlesided detectors of n-strips...

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