Astronomical Tests of an Imaging Photomultiplier.

Photomultiplier tests Some recent results

1 Abstract This report presents some recent data on tests on photomultiplier tubes (PMT's) carried out at the University of Oxford. The standardized testing procedures have been extensively documented in another report [1] which describe the 'Mortar' apparatus and the conditions used.

An infrared upconverter for astronomical imaging

In-beam tests of a ring imaging Čerenkov detector with a multianode photomultiplier readout

A ring-imaging Čerenkov counter read out by a 100-channel PMT of active area 10×10 cm was operated successfully in a test beam at the BNL AGS with several radiator gases, including the heavy fluorocarbon C4F10 . Ring radii were measured for electrons, muons, pions and kaons over the particle momentum range from 2 to 12 GeV/c, and a best resolution of σr/r = 2.3% was obtained.

Alternative Astronomical FITS imaging

Astronomical radio maps are presented mainly in FITS format. Astronomical Image Processing Software (AIPS) uses a set of tables attached to the output map to include all sorts of information concerning the production of the image. However this information together with information on the flux and noise of the map is lost as soon as the image of the radio source in fits or other format is extrac...

the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests

در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است