Abstract
To heat an uniformly imploded deuterated polystyrene shell target, Petawatt laser illumination timing is scanned from the implosion, through stagnation to expansion or disruption phases. After 80 ± 20 picosecond from the onset of the stagnation phase but yet within it, thermal neutrons are four times enhanced from l × 106. The timing exactly agrees with that of X-ray emission from the core. In the stagnation phase, beam fusion neutrons reduced to 1.5 times the thermal one. Temporal behaviours of Bremsstrahlung due to hot electrons and laser backscatterings support the the timing.
| Original language | English |
|---|---|
| Title of host publication | Inertial Fusion Sciences and Applications 2003 |
| Editors | B.A. Hammel, D.D. Meyerhofer, J. Meyer-ter-Vehn |
| Pages | 387-393 |
| Number of pages | 7 |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | Third International Conference on Inertial Fusion Sciences and Applications, IFSA 2003 - Monterey, CA, United States Duration: Sep 7 2003 → Sep 12 2003 |
Other
| Other | Third International Conference on Inertial Fusion Sciences and Applications, IFSA 2003 |
|---|---|
| Country | United States |
| City | Monterey, CA |
| Period | 9/7/03 → 9/12/03 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Petawatt laser direct heating of imploded plasmas and thermal neutron enhancement. / Kitagawa, Yoneyoshi; Akamatsu, Shin; Sakamoto, Wataru; Tanaka, Kazuo A.; Kodama, Ryosuke; Nishimura, Hiroaki; Inubushi, Yuichi; Nakai, Mitsuo; Watari, Takeshi; Norimatsu, Takayoshi; Sunahara, Atsushi; Sentoku, Yasuhiko.
Inertial Fusion Sciences and Applications 2003. ed. / B.A. Hammel; D.D. Meyerhofer; J. Meyer-ter-Vehn. 2004. p. 387-393.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Petawatt laser direct heating of imploded plasmas and thermal neutron enhancement
AU - Kitagawa, Yoneyoshi
AU - Akamatsu, Shin
AU - Sakamoto, Wataru
AU - Tanaka, Kazuo A.
AU - Kodama, Ryosuke
AU - Nishimura, Hiroaki
AU - Inubushi, Yuichi
AU - Nakai, Mitsuo
AU - Watari, Takeshi
AU - Norimatsu, Takayoshi
AU - Sunahara, Atsushi
AU - Sentoku, Yasuhiko
PY - 2004
Y1 - 2004
N2 - To heat an uniformly imploded deuterated polystyrene shell target, Petawatt laser illumination timing is scanned from the implosion, through stagnation to expansion or disruption phases. After 80 ± 20 picosecond from the onset of the stagnation phase but yet within it, thermal neutrons are four times enhanced from l × 106. The timing exactly agrees with that of X-ray emission from the core. In the stagnation phase, beam fusion neutrons reduced to 1.5 times the thermal one. Temporal behaviours of Bremsstrahlung due to hot electrons and laser backscatterings support the the timing.
AB - To heat an uniformly imploded deuterated polystyrene shell target, Petawatt laser illumination timing is scanned from the implosion, through stagnation to expansion or disruption phases. After 80 ± 20 picosecond from the onset of the stagnation phase but yet within it, thermal neutrons are four times enhanced from l × 106. The timing exactly agrees with that of X-ray emission from the core. In the stagnation phase, beam fusion neutrons reduced to 1.5 times the thermal one. Temporal behaviours of Bremsstrahlung due to hot electrons and laser backscatterings support the the timing.
UR - http://www.scopus.com/inward/record.url?scp=19944430801&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=19944430801&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:19944430801
SN - 0894486861
SN - 9780894486869
SP - 387
EP - 393
BT - Inertial Fusion Sciences and Applications 2003
A2 - Hammel, B.A.
A2 - Meyerhofer, D.D.
A2 - Meyer-ter-Vehn, J.
ER -