Charge collection efficiencies and reverse current densities of GaAs detectors
نویسندگان
چکیده
منابع مشابه
Correlation of the charge collection efficiency of GaAs particle detectors with material properties
Radiation detectors for room temperature operation based on GaAs have been studied for many years. Devices based on LPE grown material have shown very good results, but it is difficult to produce thick layers of adequate purity to allow sufficient depletion for detection of minimum ionizing particles (mips) or gamma radiation [1]. An alternative that has been studied is the use of semi-insulati...
متن کاملEnhanced current densities in Au/molecule/GaAs devices
Metal-molecule-semiconductor heterostructures have been studied in a Au/molecule/p-type GaAs configuration. Stable monolayers of alkanemonothiols, alkanedithiols and aromaticdithiols were self-assembled from solution on heavily doped p-type (p) GaAs surfaces. A low-energy, indirect path technique was used to evaporate Au on the molecular layer to minimize damage or penetration of the layer. Ele...
متن کاملCharacterization and Modeling of Non-Uniform Charge Collection in CVD Diamond Pixel Detectors
A pixel detector with a CVD diamond sensor has been studied in a 180 GeV/c pion beam. The charge collection properties of the diamond sensor were studied as a function of the track position, which was measured with a silicon microstrip telescope. Non-uniformities were observed on a length scale comparable to the diamond crystallites size. In some regions of the sensor, the charge drift appears ...
متن کاملBalanced homodyne detectors and Casimir energy densities
We recall and generalize the analysis of the output of the so-called balanced homodyne detectors. The most important feature of these detectors is their ability to quantify the vacuum fluctuations of the electric field, that is expectation values of products of (quantum-) electric-field operators. More precisely, the output of BHDs provides information on the oneand two-point functions of arbit...
متن کاملCharge densities come of age.
In 1915, just three years after the discovery of X-ray diffraction by Von Laue, Peter Debye noted that “the scattering from light atoms should get more attention, since along this way it should be possible to determine the arrangement of electrons in crystals”. Debye!s statement preceded the development of quantum mechanics and Born!s definition of electron probability distribution, but correct...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1995
ISSN: 0920-5632
DOI: 10.1016/0920-5632(95)00558-7