Effect of relative humidity during 40 GHz millimeter wave exposure

Author

Kojima, Masaru ; Cheng-Yu Tsai ; Suzuki, Yuya ; Sasaki, Kazuhiko ; Wake, Kanako ; Watanabe, Shigetaka ; Taki, Masato ; Kamimura, Yoshitsugu ; Hirata, Akihiko ; Sasaki, Kazuhiko ; Sasaki, Hiromu

Author_Institution

Div. of Vision Res. for Environ. Health, Kanazawa Med. Univ., Ishikawa, Japan

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

It has been demonstrated that millimeter waves (MMW) are absorbed by surface tissue, such as skin or cornea. It was shown in our laboratory that damage from MMW exposure was related to heat accumulation and transport. To study the relationship between relative humidity and ocular damage, we investigated the effect of relative humidity during MMW exposure. The ocular temperatures of rabbits were measured during exposure to 40 GHz MMW (200 mW/cm²). To visualize the dynamic change of temperature and distribution in the anterior chamber, 0.2% microencapsulated thermochromic liquid crystal (MTLC) was injected into the anterior chamber of rabbit eye. We showed that low humidity during exposure decreased heat accumulation and transfer.

Keywords

biological effects of fields; eye; heat transfer; humidity; skin; anterior chamber; cornea; frequency 40 GHz; heat accumulation; heat transfer; heat transport; microencapsulated thermochromic liquid crystal; millimeter wave exposure; ocular damage; rabbit eye; rabbits; relative humidity effect; skin; surface tissue; Color; Educational institutions; Heat transfer; Humidity; Lenses; Rabbits;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6930075

Filename

6930075