Benchmarking simulation methods for methane moderators
The Intense Pulsed Neutron Source (IPNS) at Argonne National Laboratory is a spallation neutron source dedicated to materials research. Its three cryogenic methane moderators provide twelve neutron beams to fourteen instruments and test facilities. IPNS has begun a program to enhance the effectiveness of its target, reflector, and moderator system. This program will involve the examination of many different potential system modifications and their various interactions. The first component of such a task is the assessment of the current performance of the target, reflector, and moderator system, and the verification of the computational model used to evaluate the system. To that end, we have developed a Monte Carlo model of the IPNS neutron generation system as currently configured, and are in the process of validating that model with corresponding measurements. This paper describes the Monte Carlo model and analysis, as well as some of the experimental comparisons we use to validate our model. (auth)
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Intense Pulsed Neutron Source
- Sponsoring Organization:
- USDOE Office of Science (United States)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 917620
- Report Number(s):
- ANL/IPNS/CP--98628; IWCMPNS--1997; CONF-9709132--
- Country of Publication:
- United States
- Language:
- English
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