Measurement of temperature after hypervelocity collision of microparticles in the range from 10 to 40 km/s

Miyachi, Takashi; Fujii, Masayuki; Hasebe, Nobuyuki; Miyajima, Mitsuhiro; Okudaira, Osamu; Takechi, Seiji; Onishi, Toshiyuki; Minami, Shigeyuki; Shibata, Hiromi; Ohashi, Hideo; Iwai, Takeo; Nogami, Ken-ichi; Sasaki, Sho; Grün, Eberhard; Srama, Ralf; Okada, Nagaya
October 2008
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p174107
Academic Journal
The temperature recorded immediately after hypervelocity collision of microparticles comprising iron and nickel with a silver-coated piezoelectric plate was analyzed using photomultipliers of different spectral response characteristics. The conversion rate between the velocity and temperature is estimated to be ∼900 K/km/s in the velocity range of 10–40 km/s. This rate is greater than that reported earlier.


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