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Completion of the world’s largest cryogenic hydrogen circulation system in J-PARC spallation neutron source
-The high intensity neutron beam with the world’s highest performance is expected.-
May. 21, 2008
In J-PARC (Japan Proton Accelerator Research Complex), which is the High Intensity Proton Accelerator Facilities, the cryogenic hydrogen circulation system, which plays a role in cooling neutron by cryogenic hydrogen with the pressure of 1.5 MPa and the temperature of around 20 K (-253º), was constructed and completed. For the first time in Japan, we can succeed in circulating the cryogenic hydrogen with the largest flow rate of about 8 m3/h in April 2008.
Accordingly, the cryogenic hydrogen circulation system can supply the high intensity neutron beam required for various experiments in material and life science field in J-PARC.
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Location of environment monitoring posts measuring amount of
radiation. (details)
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