A fast numerical method for photomultiplier tube calibration

Calibration and characterization of the IceCube photomultiplier tube

Over 5000 PMTs are being deployed at the South Pole to compose the IceCube neutrino observatory. Many are placed deep in the ice to detect Cherenkov light emitted by the products of high-energy neutrino interactions, and others are frozen into tanks on the surface to detect particles from atmospheric cosmic ray showers. IceCube is using the 10-in. diameter R7081-02 made by Hamamatsu Photonics. ...

A Simple and Fast Method for Field Calibration of Triaxial Gyroscope by using Accelerometer

Simple active method for reducing magnetic interference in a thermoelectrically cooled photomultiplier tube.

We present a simple modification for thermoelectrically cooled photomultiplier tube (PMT) assemblies that eliminates the magnetic interference between the peltier element and the PMT. An active compensation is accomplished by forming current loops of the wires of the peltier element and placing them in such a way that they eliminate the interfering magnetic field. It is demonstrated that the im...

Shock-Tube Calibration of a Fast-Response Pressure Transducer

Fast numerical simulation of vortex shedding in tube arrays using a discrete vortex method

Vortex shedding may occur in tube arrays, resulting in strong excitation forces at discrete frequencies. In the past the Strouhal numbers governing vortex shedding in these systems were determined primarily by experiment. This paper presents a computationally inexpensive method of numerical simulation for the unsteady flow through a rigid normal triangular tube array which determines both the f...