Published March 2001
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Estimation of pulse shape functions for high resolution chopper spectrometers by means of the simulation calculation program, McStas
Creators
- 1. Institute for Materials Research, Tohoku Univ., Sendai, Miyagi (Japan)
- 2. Institute for Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki (Japan)
- 3. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
- 4. Department of Physics, Tokyo Metropolitan Univ., Hachioji, Tokyo (Japan)
Description
To optimise parameters for very high resolution chopper spectrometers, we have estimated the resolution functions by means of the simulation calculation program McStas. Results of simulation indicate that a chopper spectrometer with L1 of 15 m and L2 of 4 m gives an energy resolution, Δε/Ei, of 1% when it is installed at a decoupled liquid H2 moderator in the Joint Project. Moreover, even very high resolution chopper spectrometers with Δε/Ei of 0.1% must be feasible by using a double Fermi chopper system. Because of its quite wide Q-ω space, high resolution chopper spectrometers become important and powerful tool for investigation in wide scientific fields. (author)
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Additional details
Publishing Information
- Imprint Title
- Proceedings of the fifteenth meeting of the international collaboration on advanced neutron sources (ICANS-XV). Advanced neutron sources towards the next century
- Imprint Pagination
- 1451 p.
- Journal Page Range
- v. 1 p. 418-424
- Report number
- JAERI-Conf--2001-002
Conference
- Title
- 15. meeting of the international collaboration on advanced neutron sources
- Acronym
- ICANS-XV
- Dates
- 6-9 Nov 2000
- Place
- Tsukuba, Ibaraki (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 33010013
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COMPUTERIZED SIMULATION; ELASTIC SCATTERING; ENERGY RESOLUTION; INELASTIC SCATTERING; M CODES; MONTE CARLO METHOD; NEUTRON CHOPPERS; NEUTRON SOURCES; NEUTRON SPECTROSCOPY; TIME-OF-FLIGHT SPECTROMETERS
- Descriptors DEC
- BEAM PULSERS; CALCULATION METHODS; COMPUTER CODES; MEASURING INSTRUMENTS; PARTICLE SOURCES; RADIATION SOURCES; RESOLUTION; SCATTERING; SIMULATION; SPECTROMETERS; SPECTROSCOPY
Optional Information
- Notes
- 4 refs., 7 figs. Imprint:Published in 2 volumes
- Secondary number(s)
- KEK-PROC--2000-22