Behaviour in Magnetic Fields of Fast Conventional and Fine-Mesh Photomultipliers
نویسنده
چکیده
The performance of both conventional and fine-mesh Hamamatsu photomultipliers has been measured inside moderate magnetic fields. This has allowed the test of effective shielding solutions for photomultipliers, to be used in time-of-flight detectors based on scintillation counters. Both signal amplitude reduction or deterioration of the timing properties inside magnetic fields have been investigated.
منابع مشابه
Characterization of large area photomutipliers under low magnetic fields: design and performances of the magnetic shielding for the Double Chooz neutrino experiment
This paper describes the characterization studies under low magnetic fields of the Hamamatsu R7081 photomultipliers that are being used in the Double Chooz experiment. The design and performances of the magnetic shielding that has been developed for these photomultipliers are also reported.
متن کاملAbsolute Photo Detection Efficiency measurement of Silicon PhotoMultipliers
Silicon photomultipliers (SiPM) are recent detectors studied by many groups. Their proprieties (compact form, insensitivity to magnetic fields, low voltage power supplies...) are promising for various scientific fields, from high energy physics calorimetry to medical imaging application. An accurate measurement of the SiPM parameters is needed to integrate these devices in experimentation. Abso...
متن کاملFeasibility Study of Single-Photon Counting Using a Fine-mesh Phototube for an Aerogel Readout
The fine-mesh phototube is one type of photodetector which can be used under a strong magnetic field. For an aerogel readout, the single-photon detection efficiency should be close to 100% in order to identify particle species. We carried out a feasibility study of single-photon counting using fine-mesh phototubes, and obtained a possible solution.
متن کاملSimple preparation of magnetic, antibacterial and photo-catalyst NiFe2O4@TiO2/Pt nanocomposites
Firstly nickel ferrite nanoparticles were synthesized via a simple precipitation method. Then mono-disperse platinum nanoparticles and NiFe2O4@TiO2/Pt nanocomposites were synthesized by a facile sol-gel procedure. The structure, phase and crystallite size of the magnetic and photo-catalyst products were characterized by X-ray diffraction pattern (XRD). The morphology and size of the nanostructu...
متن کاملAnalytical Assessment of the Behaviour of the Masonry Wall Strengthed by Steel Mesh and Shotcrete
An effective approach for strengthening masonry buildings is to apply shotcrete reinforced with mesh on the surface of the wall. It is not possible to assess the behaviour of coated walls solely using analytical approaches based on simple equations of theory of elasticity without the use of numerical methods. Unreinforcced masonry wall is modelled in this study using the finite element softwar...
متن کامل