منابع مشابه
Cross-talk suppressed multi-anode MCP-PMT
We have developed a 4-channel multi-anode MCP-PMT, SL10, which exhibits a performance of σTTS ≃ 30 ps for single photons with G ∼ 10 6 and QE = 20% under a magnetic field of B ≤ 1.5T . The cross-talk among anodes has been extensively studied. We have taken two measures to suppress it: one is to configure the SL10 to an effectively independent 4 small pieces of MCP-PMT’s by segmenting an electro...
متن کاملLifetime-extended MCP-PMT
In order to develop a long-lifetime MCP-PMT under high rates of circumstance, we investigated the degradation of the quantum efficiency (QE) of PMT’s with a multialkali photocathode. We found that not only positive ions, but also neutral residual gases would damage the photocathode resulting in an enhancement of the work function; their countermeasures were established in newly manufactured squ...
متن کاملLifetime of MCP–PMT
To examine the lifetime of a micro-channel plate photo-multiplier tube, we measured its basic performance, gain, quantum efficiency (QE), transit time spread and dark counts as a function of the integrated amount of irradiated photons up to 2:8 10 photons=cm, corresponding to a 14-year time duration under supposed super-KEKB experimental conditions. The effect of the ion-feedback protection lay...
متن کاملMCP-PMT timing property for single photons
We have measured the performance, especially the timing properties, of micro-channel plate photo-multiplier tubes (MCP-PMTs) by irradiating with single photons with/without a magnetic field. A time resolution of s 1⁄4 30–35 ps was obtained for single photons under 1:5 T: With an MCP-PMT, a small time-of-flight counter, by means of Cherenkov light radiation instead of scintillation light has bee...
متن کاملHybrid superprism with low insertion losses and suppressed cross-talk.
We demonstrate with the two-dimensional finite-difference time-domain method that an adiabatic transition in a superprism with an interface along the [1 2 ] direction enhances the transmission through the superprism to more than 90% (-0.5 dB) over the wavelength range 1.47-1.68 mum , including the telecommunication C and L bands. We also show that diffraction governed by a quasinegative index o...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2008
ISSN: 0168-9002
DOI: 10.1016/j.nima.2008.04.014