A Photographic Method for Measuring Ultraviolet Radiation Scattered from Microscopic Objects

A Photographic Method for Measuring Ultraviolet Radiation Scattered from Microscopic Objects

Light scattered from a microscopic object and thereby lost from an imageforming system can be one of the major sources of error in a microspectrophotometric measurement. The classical theoretical treatments of scattering by Rayleigh and by Mie have been used by Caspersson (1, 1 a) to determine boundary conditions under which the nonspecific light loss can be expected to be negligible in measure...

Measuring vacuum ultraviolet radiation-induced damage

During plasma processing of semiconductors, ultraviolet ~UV! and vacuum ultraviolet ~VUV! radiation are present, but their effects can be difficult to separate from those due to charged particles incident on the wafer. The contribution of VUV photon irradiation to gate-oxide damage, and damage to dielectric materials in general, was examined using two measurement techniques that can predict the...

Cataract from Ultraviolet Radiation

Photographic method of measuring the angle of squint.

MEASUREMENT of the angle of deviation in squint is usually made either objectively or subjectively by means of the major amblyoscope. This instrument has the disadvantage that, although the fixation object is optically at infinity, the known proximity of the apparatus may stimulate convergence (see, for instance, Schapero and Levy, 1953). The readings vary from operator to operator, especially ...

A simple low-cost method for two dimensional microscopic measuring and stepping on the microscopic plate

Received 18 November 2002; accepted 18 February 2003 ABSTRACT In this study, a simple low cost method to be used in morphometric studies on microscopic anatomical structures is described. Increasing need for stereological methods depend on laboratories equipped with specially designed devices to do this type of studies. However, high-technical automated and/or computerized systems increase the ...