Progress of fast ignitor studies and Petawatt laser construction at Osaka University

• DOI: 10.1063/1.1458588
• Publication Date: 2002-07-26T14:24:57Z
• Authors: Y. Kitagawa; Y. Sentoku; S. Akamatsu; M. Mori; Y. Tohyama; R. Kodama; K. A. Tanaka; H. Fujita; H. Yoshida; S. Matsuo; T. Jitsuno; T. Kawasaki; S. Sakabe; H. Nishimura; Y. Izawa; K. Mima; T. Yamanaka
• Keywords: IGNITOR; Chirped pulse amplification; Filamentation

100 TW light from the Petawatt Module (PWM) laser illuminated a preimploded spherical deuterated polystyrene(CD) shell target. The DD neutron yield increased 2.5×105–106. Analysis indicates that hundreds of keV deuterons, generated around critical density, collide with cold fuel deuterons and play leading role in enhancement yield. A two-dimensional particle-in-cell (2D PIC) simulation predicted well deuteron spectrum. 60 was used for MeV proton emissions megagauss magnetic fields generation on rear surface Poly p-xylene(C8H8) plane 2D PIC explained results. PWM upgraded to one PW, making it world biggest (PW laser). An optically parametric chirped amplification introduced front end. pulse synchronized GEKKO XII imploding beams within 10 ps.