Liquid target device

• Main Authors: UNO, HIROYUKI, FRANCISCO, GUERRA GOMEZ, OCHI, SHIGEHARU
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2021
• Subjects: CONVERSION OF CHEMICAL ELEMENTS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GAMMA RAY OR X-RAY MICROSCOPES; IRRADIATION DEVICES; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PHYSICS; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; RADIOACTIVE SOURCES; TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR

The invention provides a liquid target device so as to prevent a target liquid from flowing out of a device even when a target foil is damaged. The liquid target device (1) includes a target accommodation portion (23) as a liquid accommodation portion in which a target liquid is accommodated, a beam passage (11) through which a charged particle beam (B) emitted from a particle accelerator (3) passes to reach the liquid accommodation portion, a target foil (33) that separates the beam passage (11) and the liquid accommodation portion from each other, and a vacuum foil (31) that separates a vacuum region (A1) provided upstream of the beam passage (11) and the beam passage (11) from each other. The beam passage (11) is provided with a first gas chamber (R1) into which a cooling gas is supplied at a position on the vacuum foil (31) side and a second gas chamber (R2) into which a cooling gas is supplied at a position closer to the target foil (33) side than the first gas chamber (R1) and the first gas chamber (R1)