The response of a double-sided silicon strip detector to a 3 GeV pion beam from the Proton Synchrotron at CERN is presented. Charge matching between the pulseheights from both sides, produced by the same traversing particle, is obtained with a resolution better than 5%. The spatial resolution is measured as a function of the incident angle of the projectile, varying from 15 m at normal incidenc...

We present the status of the forward-backward charge asymmetry measurement for W boson production using early Run 2 data collected with the Collider Detector at Fermilab (CDF). Tracking for forward electrons is a critical component of this measurement, and we describe a new technique which combines the position and energy measurements from the calorimeter with position measurements in the silic...

We present the status of the forward-backward charge asymmetry measurement for W boson production using early Run 2 data collected with the Collider Detector at Fermilab (CDF). Tracking for forward electrons is a critical component of this measurement, and we describe a new technique which combines the position and energy measurements from the calorimeter with position measurements in the silic...

RICH detectors have become extraordinarily useful. Results include measurement of solar neutrino rates, evidence for neutrino oscillations, measurement of TeV γ-rays from gravitational sources, properties of QCD, charm production and decay, and measurement of the CKM matrix elements Vcs, Vcb and Vub. A new value |Vub/Vcb| = 0.087 ± 0.012 is determined. . . . . . . . . . . . . . . . . . . . . . ...

Blotches are common artifacts in old film sequences that manifest themselves as disturbing bright or dark spots. Existing methods for detecting blotches can achieve high detection rates. High detection rates are only useful if the corresponding number of false alarms is not too high, visible artifacts in the corrected sequence result otherwise. We show that the performance of blotch detectors c...

Research a new type of semiconductor photocatalyst and apply it to photocatalytic water splitting produce hydrogen. This is the most important topic in today's society. Therefore, we report four linear organic polymers PH-1, PH-2, PN-1 PN-2, which are formed by condensation dibenzothiophene-S, S-dioxide units with series derivatives benzene respectively used for hydrogen evolution. What’s more,...

A general representation of the current in an amorphous semiconductor pn diode is developed. This expression is applied to examples of density of states functions exponential, Gaussian, and Gaussian with exponential tail commonly found in conjugated molecules and other amorphous materials. We find that the ideality factor could be voltage dependent and that its functional form is closely relate...

|The rst analyses of semiconductor devices in the 1940s and 50s already considered a splitting of devices into regions of zero space charge and depletion regions. Here it is shown that these simplied models appear as singular limits of the drift-diiusion model for charge transport in semiconductors. The limiting problem for the potential is similar to the so called space charge problem. For pn-...

With the continuous development of science and technologies in China, radiotherapy technology medical field has been very significantly developing, intensity modulated radiation therapy (IMRT) most widely used. This paper first introduces components types two-dimensional matrix detector, ionization chamber detector semiconductor then analyzes dosimetric characteristics detector. In end, various...