Cold-neutron disk-chopper spectrometer at J-PARC

Journal of Neutron Research

Volumn 15, Issue 1, 2007, Pages 13-21

  Nakajima, K ^a   Nakamura, M ^a   Kajimoto, R ^a   Osakabe, T ^a   Kakurai, K ^a   Matsuda, M ^a   Metoki, M ^a   Wakimoto, S ^a   Sato, T J ^b   Itoh, S ^c   Arai, M ^a   Yoshida, K ^d   Niita, K ^e  

^a JAPAN ATOMIC ENERGY AGENCY   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

^c HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION KEK   (Japan)

^d KOBE STEEL LTD   (Japan)

^e RESEARCH ORGANIZATION FOR INFORMATION SCIENCE AND TECHNOLOGY   (Japan)

Author keywords

Chopper spectrometer; Disk chopper; Inelastic neutron scattering; J PARC

Indexed keywords

EID: 85013598599     PISSN: 10238166     EISSN: 14772655     Source Type: Journal    
DOI: 10.1080/10238160601045722     Document Type: Article

References (13)

1. see J-PARC, web site: http://j-parc.jp/
2. University of Tokyo group has proposed the 4th, a high intensity versatile chopper spectrometer for MLF, J-PARC recently.
3. S. Itoh, K. Ohoyama, T. Otomo, K. Nakajima, K. Kuwahara, R. Kajimoto, T. Kamiyama and O. Yamamuro, Designed performance of high resolution chopper spectrometer at J-PARC, J. Neutron Res. 13 59 (2005).
4. S. Itoh, K. Ohoyama, T. Kamiyama, T. Otomo, K. Nakajima, R. Kajimoto, T. Yokoo, K. Kuwahara, K. Tomiyasu, O. Yamamuro, S. Muto, H. Sagehashi, J. Suzuki, K. Ueno and T. Ino, High resolution chopper spectrometer at J-PARC, Proceedings of the ICANS-XVII.
5. R. Kajimoto, T. Yokoo, K. Nakajima, M. Nakamura, K. Soyama, T. Ino, S. Shamoto, M. Fujita, K. Ohoyama, H. Hiraka, K. Yamada and M. Arai, High intensity chopper spectrometer 4SEASONS at J-PARC, J. Neutron Res, 15 (1) 5 (2007).
6. For example, IN5 at ILL, NEAT at HMI, DCS at NIST.
7. Same type of chopper spetctrometers at pulsed neutron sorces are also planned for SNS (CNCS) and ISIS 2nd Target Station (LET).
8. Very recently, we have succeeded in running our proto-type fast disk-chopper at the speed of 300 Hz. Although still we have many issues to overcome in developing our chopper, we have good hope to complete it.
9. K. Lefmann and K. Nielsen, McStas, a general software package for neutron ray-tracing simulations, Neutron News 10(3) 20 (1999).
10. P. Willendrup, E. Farhi and K. Lefmann, McStas 1.7-a new version of the flexible Monte Carlo neutron scattering package, Physica B. 350 E735 (2004).
11. H. Iwase, K. Niita and T. Nakamura, Development of general-purpose particle and heavy ion transport monte carlo code, J. Nucl. Sci. Technol. 39 1142 (2002).
12. R. Kajimoto, M. Nakamura, T. Osakabe, T.J. Sato, K. Nakajima and M. Arai, Study of converging neutron guides for the cold neutron double-chopper spectrometer at J-PARC, Physica B (In press).
13. M. Nakamura, K. Nakajima, R. Kajimoto and M. Arai, Utilization of multiple incident energies on cold-neutron disk-chopper spectrometer at J-PARC, J. Neutron Res, 15 (1) 31 (2007).