Refine your search:     
Report No.
 - 
Search Results: Records 1-20 displayed on this page of 78

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

3D visualization of XFEL beam focusing properties using LiF crystal X-ray detector

Pikuz, T.*; Faenov, A.*; Matsuoka, Takeshi*; Matsuyama, Satoshi*; Yamauchi, Kazuto*; Ozaki, Narimasa*; Albertazzi, B.*; Inubushi, Yuichi*; Yabashi, Makina*; Tono, Kensuke*; et al.

Scientific Reports (Internet), 5, p.17713_1 - 17713_10, 2015/12

 Times Cited Count:19 Percentile:18.8(Multidisciplinary Sciences)

Journal Articles

Prospect of compact accelerator based on breakthrough technologies

Arakawa, Kazuo

Genshiryoku Nenkan 2006-Nen Ban, p.125 - 126, 2005/10

no abstracts in English

Journal Articles

RF properties of the JAERI ERL-FEL for long-pulse operation

Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro; Nishimori, Nobuyuki; Hajima, Ryoichi; Minehara, Eisuke

Proceedings of 1st Annual Meeting of Particle Accelerator Society of Japan and 29th Linear Accelerator Meeting in Japan, p.305 - 307, 2004/08

no abstracts in English

Journal Articles

Status and development for the JAERI ERL-FEL for high-power and long-pulse operation

Sawamura, Masaru; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Minehara, Eisuke; Nagai, Ryoji; Nishimori, Nobuyuki

Proceedings of 9th European Particle Accelerator Conference (EPAC 2004) (CD-ROM), p.1723 - 1725, 2004/07

After the success of energy recovery linac (ERL) for the superconducting free-electron laser (FEL) in the Japan Atomic Energy Research Institute (JAERI), the JAERI ERL-FEL has been upgrading for high-power and long-pulse operation. The new RF sources of CW mode for higher power for non-energy-recovery parts have been installed and tested for long-pulse operation. The properties of the superconducting linac required for the long-pulse operation were measured such as pressure in the cryomodule, vibration of frequency and piezo tuner response. The RF control systems have been also upgraded to reduce the fluctuation to less than 0.1% for amplitude and 0.1 deg for phase.

Journal Articles

Study of HOM instability of the JAERI ERL-FEL

Sawamura, Masaru; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Minehara, Eisuke; Nagai, Ryoji; Nishimori, Nobuyuki

Free Electron lasers 2003, p.II_31 - II_32, 2004/00

no abstracts in English

Journal Articles

Required technologies of superconducting energy recovering RF linac-based free-electron lasers for large-scale and popular industrial applications

Minehara, Eisuke

Proceedings of ARTA 2004, p.75 - 76, 2004/00

The JAERI superconducting RF linac-based free-electron laser has successfully produced the tunable, 6% or more efficient, a few hundreds femtoseconds, and 2.34kW high average power laser light firstly. Here we discuss and report what kinds of the accelerator and free-electron laser technologies we need in order to make a large-scale and popular industrial FEL applications possible, to increase the average power drastically, to realize the JAERI FEL to be a non-ionizing radiation generating device, and to miniaturize the device volume and weight. In the discussion as a specific example of the large-scale and popular industrial applications, we discuss the nuclear energy related example, and the required technologies of the accelerator and non-accelerator related.

Journal Articles

JAERI ERL-FEL; Status and future plans

Hajima, Ryoichi; Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro; Nishimori, Nobuyuki; Minehara, Eisuke

Dai-14-Kai Kasokuki Kagaku Kenkyu Happyokai Hokokushu, p.696 - 698, 2003/11

An energy-recovery linac (ERL) for a high-power free-electron laser (FEL) is under development in JAERI. We completed the construction of the ERL, and demonstrated the first energy-recover operation and FEL lasing in 2002. For realizing FEL lasing in 5-10kW average power, further upgrade of the ERL is carrying on, which includes reinforcement of the injector, replacement of the RF control system and so on. As future plans, we present possible quantum control of chemical reaction dynamics through a self-chirped FEL pulse, application of ERL technologies to high-flux photon sources in a wide range of photon energy from THz radiation to $$gamma$$-ray.

Journal Articles

Mode calculation of optical resonator for free-electron laer by fast-fourie-transform

Nagai, Ryoji; Hajima, Ryoichi; Sawamura, Masaru; Nishimori, Nobuyuki; Kikuzawa, Nobuhiro; Minehara, Eisuke

Proceedings of 28th Linear Accelerator Meeting in Japan, p.381 - 383, 2003/08

no abstracts in English

Journal Articles

Development of 10kW FEL at the JAERI energy recovery linac

Hajima, Ryoichi; Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro; Nishimori, Nobuyuki; Minehara, Eisuke

Proceedings of 28th Linear Accelerator Meeting in Japan, p.390 - 392, 2003/08

no abstracts in English

Journal Articles

HOM properties of the JAERI ERL-FEL

Sawamura, Masaru; Nagai, Ryoji; Kikuzawa, Nobuhiro; Hajima, Ryoichi; Nishimori, Nobuyuki; Minehara, Eisuke

Proceedings of 28th Linear Accelerator Meeting in Japan, p.384 - 386, 2003/08

no abstracts in English

Journal Articles

High energy laser wakefield acceleration

Kotaki, Hideyuki; Kando, Masaki; Hosokai, Tomonao; Kondo, Shuji; Masuda, Shinichi; Kanazawa, Shuhei; Yokoyama, Takashi*; Matoba, Toru; Nakajima, Kazuhisa

International Journal of Applied Electromagnetics and Mechanics, 14(1-4), p.255 - 262, 2003/03

no abstracts in English

Journal Articles

Fundamental physics with an X-ray free electron laser

Tajima, Toshiki

Plasma Physics Reports, 29(3), p.231 - 235, 2003/03

 Times Cited Count:5 Percentile:81.87(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Linac optics optimization for energy recovery Linacs

Nagai, Ryoji; Hajima, Ryoichi; Kikuzawa, Nobuhiro; Minehara, Eisuke; Nishimori, Nobuyuki; Sawamura, Masaru

Proceedings of 2003 Particle Accelerator Conference (PAC 2003) (CD-ROM), p.3443 - 3445, 2003/00

no abstracts in English

Journal Articles

Chirp estimation of an ultrashort free-electron laser pulse

Nagai, Ryoji; Hajima, Ryoichi; Sawamura, Masaru; Nishimori, Nobuyuki; Kikuzawa, Nobuhiro; Minehara, Eisuke

Proceedings of 27th Linear Accelerator Meeting in Japan, p.264 - 266, 2002/08

no abstracts in English

Journal Articles

Intense ultrashort pulse generation using the JAERI far-infrared free-electron laser

Nagai, Ryoji; Hajima, Ryoichi; Nishimori, Nobuyuki; Kikuzawa, Nobuhiro; Sawamura, Masaru; Minehara, Eisuke

Nuclear Instruments and Methods in Physics Research A, 483(1-2), p.129 - 133, 2002/05

 Times Cited Count:6 Percentile:58.2(Instruments & Instrumentation)

An intense ultrashort pulse is generated at the perfect synchronism of optical-resonator length in the JAERI far-infrared free-electron laser. At wavelength of 22.5 $$mu$$m, second-order optical autocorrelation measurements show that the FEL pulse duration is 250 fs and less than four optical cycles which is consistent with numerical calculation result. The pulse energy ranges up to 100 $$mu$$J. The second-hermonic generation in a 2 mm thickness Te crystal is used to provide the nonlinear autocorrelation signal. In the various desynchronism of optical-resonator length, the way of appearing of the sub-pulse corresponded to the calculation result well, too.

Journal Articles

Simulated performance of the energy-recovery transport system for the JAERI-FEL

Shizuma, Toshiyuki; Hajima, Ryoichi; Minehara, Eisuke

Nuclear Instruments and Methods in Physics Research A, 475(1-3), p.569 - 573, 2001/12

 Times Cited Count:1 Percentile:86.36(Instruments & Instrumentation)

no abstracts in English

Journal Articles

An Optical resonator with insertable scraper output coupler for the JAERI far-infrared free-electron laser

Nagai, Ryoji; Hajima, Ryoichi; Nishimori, Nobuyuki; Sawamura, Masaru; Kikuzawa, Nobuhiro; Shizuma, Toshiyuki; Minehara, Eisuke

Nuclear Instruments and Methods in Physics Research A, 475(1-3), p.519 - 523, 2001/12

 Times Cited Count:5 Percentile:59.09(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Third-harmonic lasing at JAERI-FEL

Hajima, Ryoichi; Nagai, Ryoji; Nishimori, Nobuyuki; Kikuzawa, Nobuhiro; Minehara, Eisuke

Nuclear Instruments and Methods in Physics Research A, 475(1-3), p.43 - 46, 2001/12

 Times Cited Count:10 Percentile:38.5(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Analyses of superradiance and spiking-mode lasing observed at JAERI-FEL

Hajima, Ryoichi; Nishimori, Nobuyuki; Nagai, Ryoji; Minehara, Eisuke

Nuclear Instruments and Methods in Physics Research A, 475(1-3), p.270 - 275, 2001/12

 Times Cited Count:15 Percentile:26.15

no abstracts in English

Journal Articles

Characteristics of the intense ultrashort pulse generation in the JAERI far-infrared free-electron laser

Nagai, Ryoji; Hajima, Ryoichi; Nishimori, Nobuyuki; Kikuzawa, Nobuhiro; Sawamura, Masaru; Minehara, Eisuke

Proceedings of 26th Linear Accelerator Meeting in Japan, p.240 - 242, 2001/08

no abstracts in English

78 (Records 1-20 displayed on this page)