In a major upgrade, the (2D) electron cyclotron emission imaging diagnostic (ECEI) at ASDEX Upgrade has been equipped with a second detector array, observing a different toroidal position in the plasma, to enable quasi-3D measurements of the electron temperature. The new system will measure a total of 288 channels, in two 2D arrays, toroidally separated by 40 cm. The two detector arrays observe...

The on-detector optical link of the ATLAS pixel detector contains radiation-hard receiver chips to decode bi-phase marked signals received on PIN arrays and data transmitter chips to drive VCSEL arrays. The components are mounted on hybrid boards (optoboards). We present results from the irradiation studies with 24 GeV protons up to 32 Mrad (1.2 x 10 p/cm) and the experience from the production.

Simulation of gamma and hadron showers in the energy range 100GeV- 25TeV has been carried out. For a big ideal Cherenkov light array, characteristics of lateral distribution of Cherenkov photon density have been studied. Results from this ideal detector are compared with those simulated for a real TUNKA- like array to investigate experimental potential of using existence of a hump in lateral di...

The use of charge-coupled devic[; structures for analog signal processing is described. By operating in the charge domain, such structures offer the advantages of low··power, compact-layout, and high-speed operation. The circuits are digitally programmable and unlike continuous-time analog circuits, their operation can be fully synchronous. The application or the charge-domain circuits to on-ch...

Recent advances in X-ray detector technology have resulted in the introduction of segmented detectors composed of many small detector modules tiled together to cover a large detection area. Due to mechanical tolerances and the desire to be able to change the module layout to suit the needs of different experiments, the pixels on each module might not align perfectly on a regular grid. Several d...

SIRTF requires detector arrays with extremely high sensitivity, limited only by the background irradiance. Especially critical is the near infrared spectral region around 3 μm, where the detector current due to the zodiacal background is a minimum. IRAC has two near infrared detector channels centered at 3.6 and 4.5 μm. We have developed InSb arrays for these channels that operate with dark cur...

We calculate the production of hypothetical millicharged particles (MCPs) sub-GeV masses by J-PARC proton beam in framework T2K and future T2HK neutrino oscillation experiments. Concentrating on region model parameter space, where an MCP can hit near detector twice, we adopt this background-free signature to estimate sensitivity experiments MCPs. find that a previously inaccessible direct searc...

Page-oriented data storage systems incorporate optical detector arrays [such as complementary metal-oxide semiconductor (CMOS) arrays] in order to read data images. For laboratory demonstrations the detector array is typically pixel matched to the data image [Opt. Lett. 22, 1509 (1997)]. This approach requires exceedingly high-performance optics and mechanics for the simultaneous alignment of e...