Progress toward a unified kJ-machine CANDY

Kitagawa, Yoneyoshi; Mori, Yoshitaka; Komeda, Osamu; Hanayama, Ryohei; Ishii, Katsuhiro; Okihara, S.; Fujita, Kazuhisa; Nakayama, S.; Sekine, Takashi; Sato, N.; Kitahara, Takashi; Kawashima, Toshiyuki; Watari, T.; Kan, Hirofumi; Nakamura, Naoki; Kondo, Takuya; Fujine, Manabu; Azuma, Hirozumi; Tagaya, Motohiro; Hioki, Tatsumi; Kakeno, Mitsutaka; Nishimura, Yasumasa; Sunahara, A.; Sentoku, Y.; Miura, Eisuke; Arikawa, Yasunobu; Nagai, Takahiro; Abe, Yuki; Ozaki, Satoshi; Noda, Akira

doi:10.1088/1742-6596/688/1/012049

Cited by 3 publications

(1 citation statement)

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“…Koyo-fast has been designed as a commercial reactor [7]. Furthermore, CANDY has been designed as a compact reactor by the group of the Graduate School for the Creation of New Photonics Industries [8]. However, no laser system with high repetition and high power exists to demonstrate required technologies.…”

Section: Introductionmentioning

confidence: 99%

Core size effects of laser fusion subcritical research reactor for fusion engineering research

Iwamoto

Kodama

2021

Nucl. Fusion

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A multi-purpose high repetition laser facility, the so-called Japan establishment for Powerlaser community Harvest (J-EPoCH) is proposed as a next generation laser facility. J-EPoCH will operate at the maximum rate of 100 Hz. The omnidirectional 12 laser beams with 8 kJ would yield ~10 13 neutrons with a Large High Aspect Ratio Target (LHART). As one of the applications of J-EPoCH, a laser fusion subcritical research reactor has been conceptually designed based on existing technologies. Moreover, a variety of fusion engineering studies: energy conversion, tritium breeding, neutron irradiation effects, etc., can be conducted. The feasibility of the subcritical research reactor is considered in terms of neutron -thermal (n-t) conversion and tritium breeding. Lead-lithium alloy (Li17Pb83) and boron carbide (B4C) have the potential to be studied for preliminary fusion power generation. The subcritical reactor will generate 21.4 W and 20.0 W of the thermal fusion power with the Li17Pb83 and the B4C layers of the thickness of 80 cm, respectively at 1 Hz operation. The Li17Pb83 layer of a 5 mm thickness will achieve the temperature rise of 0.203 mK per shot. The thermal fusion energy is detectable with conventional measurement techniques. The core with the Li17Pb83 layer thickness of 100 cm will yield more than one tritium from a DT fusion neutron. However, laser windows reduce the efficiency of n-t conversion and tritium yield.

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Section: Introductionmentioning

confidence: 99%