Zobrazeno 1 - 10
of 70
pro vyhledávání: '"M. Kumaki"'
Publikováno v:
Laser and Particle Beams. 33:137-141
To realize a heavy-ion inertial fusion (HIF) driver, we have studied a possibility of laser ion source (LIS). A LIS can provide high-current high-brightness heavy-ion beams; however, it was difficult to manipulate the beam parameters. To overcome the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6690fd457480263b28e7b080699e5c67
https://doi.org/10.1017/s026303461500004x
https://doi.org/10.1017/s026303461500004x
Autor:
Ryunosuke Kuroda, Masahito Tanaka, Hiromitsu Tomizawa, H. Toyokawa, M. Kumaki, Yoshitaka Taira
Publikováno v:
Vibrational Spectroscopy. 75:162-168
The fundamental property of radially polarized terahertz radiation, which is axial symmetry of the polarization state in the radial direction, was measured with a Schottky diode detector and with a terahertz camera and wire-grid linear polarizer. Rad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48e8d0996c350f3818b4f4742028c858
https://doi.org/10.1016/j.vibspec.2014.07.015
https://doi.org/10.1016/j.vibspec.2014.07.015
Autor:
Brian E. O'Rourke, R. Suzuki, Masahito Tanaka, H. Toyokawa, Nagayasu Oshima, Ryunosuke Kuroda, M. Kumaki, Yoshitaka Taira
Publikováno v:
Radiation Physics and Chemistry. 95:30-33
A new photon-induced positron annihilation lifetime spectroscopy approach has been developed using an S-band compact electron linac at the National Institute of Advanced Industrial Science and Technology (AIST). The high energy ( 42 MeV ), intense (1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31565216070f5f31e0a24af2d6535454
https://doi.org/10.1016/j.radphyschem.2012.11.012
https://doi.org/10.1016/j.radphyschem.2012.11.012
Publikováno v:
The Review of scientific instruments. 87(2)
We investigated the high intensity plasma generated by using a Nd:YAG laser to apply a laser-produced plasma to the direct plasma injection scheme. The capability of the source to generate high charge state ions strongly depends on the power density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46f351acf227c66f44f08d5e7b18fd32
https://pubmed.ncbi.nlm.nih.gov/26931980
https://pubmed.ncbi.nlm.nih.gov/26931980
Publikováno v:
The Review of scientific instruments. 87(2)
Heavy-ion collider experiment in isobaric system is under investigation at Relativistic Heavy Ion Collider. For this experiment, ion source is required to maximize the abundance of the intended isotope. The candidate of the experiment is (96)Ru + (96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ae81decab5d2573fee5c3b122dbaea4
https://pubmed.ncbi.nlm.nih.gov/26931981
https://pubmed.ncbi.nlm.nih.gov/26931981
Autor:
Takeshi Kanesue, C. Stifler, M. Kumaki, Shunsuke Ikeda, Masahiro Okamura, Kevin J. Palm, D. Steski
Publikováno v:
The Review of scientific instruments. 87(2)
We studied proton beam production from a laser ion source using hydrogen rich target materials. In general, gas based species are not suitable for laser ion sources since formation of a dense laser target is difficult. In order to achieve reliable op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61dc0ecbca7f73caeec15b35eadf7951
https://pubmed.ncbi.nlm.nih.gov/26931967
https://pubmed.ncbi.nlm.nih.gov/26931967
Autor:
C. Stifler, M. Kumaki, Shunsuke Ikeda, Takeshi Kanesue, Masahiro Okamura, Kevin J. Palm, D. Steski
Publikováno v:
The Review of scientific instruments. 87(2)
Calcium and lithium ion beams are required by NASA Space Radiation Laboratory at Brookhaven National Laboratory to simulate the effects of cosmic radiation. To identify the difficulties in providing such highly reactive materials as laser targets, bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ced8104f9c7f985afc270b22983f8a48
https://pubmed.ncbi.nlm.nih.gov/26931962
https://pubmed.ncbi.nlm.nih.gov/26931962
Publikováno v:
The Review of scientific instruments. 87(2)
In the laser ion source (LIS) at the Brookhaven National Laboratory (BNL), a solenoid is used to guide the laser ablation plasma and modulate the extracted beam current. Many types of ion species are guided. In some cases, the plasma plume is injecte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20f1866a6132bbfcbf8ed3e29436ba94
https://pubmed.ncbi.nlm.nih.gov/26931976
https://pubmed.ncbi.nlm.nih.gov/26931976
Autor:
Takeshi Kanesue, M. Romanelli, Kazuhiko Horioka, M. Kumaki, Shunsuke Ikeda, Yasuhiro Fuwa, Qianyu Jin, Megumi Sekine, David Cinquegrani, Masahiro Okamura, Naoya Munemoto
Publikováno v:
The Review of scientific instruments. 85(2)
To create mixed species ion beam with laser pulses, we investigated charge state distributions of plasma formed from both Al-Fe alloy targets and pure Al and Fe targets placed close together. With two targets, we observed that the two kinds of atoms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1df000ebe341e093710b53693e0f927
https://pubmed.ncbi.nlm.nih.gov/24593618
https://pubmed.ncbi.nlm.nih.gov/24593618
Autor:
Yasuhiro Fuwa, Yoshihisa Iwashita, Megumi Sekine, M. Romanelli, Takeshi Kanesue, Shunsuke Ikeda, David Cinquegrani, Masahiro Okamura, M. Kumaki
Publikováno v:
The Review of scientific instruments. 85(2)
Multiple laser shots could be used to elongate an ion beam pulse width or to intensify beam current from laser ion sources. In order to confirm the feasibility of the multiple shot scheme, we investigated the properties of plasmas produced by double
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8d190a1ffa345fef8d244dff1024164
https://pubmed.ncbi.nlm.nih.gov/24593621
https://pubmed.ncbi.nlm.nih.gov/24593621