The visible absorption spectra of Gafchromic XR type-T radiochromic film have been investigated to analyse the dosimetry characteristics of the film with visible light densitometers. Common densitometers can use photospectrometry, fluorescent light (broad-band visible), helium neon (632 nm), light emitting diode (LED) or other specific bandwidth spectra. The visible absorption spectra of this f...

• Optical property of a material is defined as its interaction with electro-magnetic radiation in the visible. • Electromagnetic spectrum of radiation spans the wide range from γ-rays with wavelength as 10 m, through x-rays, ultraviolet, visible, infrared, and finally radio waves with wavelengths as along as 10 m. • Visible light is one form of electromagnetic radiation with wavelengths ranging...

Techniques for modeling an object through observation are very important in object recognition and virtual reality. A wide variety of techniques have been developed for modeling objects with opaque surfaces, whereas less attention has been paid to objects with transparent surfaces. A transparent surface has only surface reflection; it has little body reflection. We present a new method for obta...

rapid thermal processing (rtp) has become a key technology for semiconductor device manufacturing in a variety of applications, such as thermal oxidation, annealing, and thin-film growth. hence, understanding the radiative properties of silicon and other relevant materials is essential for the analysis of the thermal transport processes. we have analyzed and calculated the spectral, directional...

Corneal, lenticular, and retinal damage have been observed following exposures to a laser emitting in the near-infrared wavelength range (Nd:Y AG, 1.318 ~m). Ocular damage thresholds are much higher than for visible wavelengths. However, it was found that infrared (IR) exposures may result in multiple damage sites throughout the ocular medium and retina; that exposure sites which initially appe...