Redistribution of solid-deuterium induced by infrared irradation

Abstract

In this paper, the internal mechanism of solid deuterium spatial distribution induced by infrared radiation is studied. The changes in spatial distribution and micro-structure of solid deuterium are also discussed as the results of wavelength and heating time of IR light. It is found that the micro-structure of solid deuterium which is irradiated by a special IR light is changed from polycrystal to monocrystal, the solid deuterium is redistributed and becomes more uniform and transparent. The best wavelength of IR light for heating solid deuterium is 3140 nm. When the output power of 3140 nm IR light is 100 upW, the redistribution time of solid deuterium is about 18 min.

The infrared-induced temperature distributions of solid D2ices

“…where I 0 is the incident IR light power at x = 0, V is the volume at the position x, and α is the absorption coefficient of the material. In our experiment, the absorption coefficients [12] of solid D 2 and quartz are 1.02 cm −1 and 1.55 cm −1 , respectively. Some intrinsic parameters [14] of solid D 2 and quartz are shown in Table 1.…”

“…In our previous studies, [12] a strong absorption peak was found at 3140 nm by measuring the IR absorption spectra of liquid D 2 at different temperatures. In the present experiment, the incident IR light is selected to be 3140 nm in wavelength and 100 µW in power.…”