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Top > Astro-E2 > What's New > 2005-06-29

Cool down of solid neon of X-ray spectrometer

On June 28 and 29, we cooled down the solid neon used as a cryogen in the X-ray spectrometer (XRS) onboard Astro-E2. XRS uses liquid helium and solid neon as a cryogen for the detector, and we have to cool down the neon to prevent from melting periodically by flowing liquid helium around the neon tank. This time, the satellite is on the rocket in the launch tower, and the operation was performed with great care.

Photo 1: About to insert a helium transfer tube into the satellite, at the 8th floor of the launch tower. The satellite covered with a fairing is at the left side of the curtain.

Photo1: inserting a helium transfer tube into the satellite

Photo 2: He is about to start helium transfer into the dewar of the XRS, through an access hole of the fairing.

Photo2: starting helium transfer into the dewar of the XRS

ISAS/JAXA Department of High Energy Astrophysics

Last Modified: Thursday, 30-Jun-2005 17:52:55 JST