Author/Authors :
S. Takechi، نويسنده , , T. Onishi، نويسنده , , S. Minami، نويسنده , , T. Miyachi، نويسنده , , M. Fujii، نويسنده , , N. Hasebe، نويسنده , , K. Mori، نويسنده , , K. Nogami، نويسنده , , H. Ohashi ، نويسنده , , S. Sasaki، نويسنده , , H. Shibata، نويسنده , , T. Iwai*، نويسنده , , E. Grün، نويسنده , , R. Srama، نويسنده , , D. N. Okada، نويسنده ,
Abstract :
A cosmic dust detector is currently being developed using a piezoelectric lead zirconate titanate (PZT) element. The characteristics of the multilayered detector (MD), which was composed of one hundred PZT disks, were investigated by bombarding it with hypervelocity iron particles supplied by a Van de Graaff accelerator. It was confirmed that there was a linear relationship between the signal amplitude observed from MD and the momentum of the particles. As compared with the single-layered detector (SD) that was composed of one PZT disk, it was found that the sensitivity of MD was ∼3 times higher than that of SD within the limits of the experimental conditions.
Keywords :
Cosmic dust , Dust detector , Piezoelectricity , Lead zirconate titanate (PZT) , Multilayers
