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Title: Preliminary radiation transport analysis for the proposed National Spallation Neutron Source (NSNS)

Abstract

The use of neutrons in science and industry has increased continuously during the past 50 years with applications now widely used in physics, chemistry, biology, engineering, and medicine. Within this history, the relative merits of using pulsed accelerator spallation sources versus reactors for neutron sources as the preferred option for the future. To address this future need, the Department of Energy (DOE) has initiated a pre-conceptual design study for the National Spallation Neutron Source (NSNS) and given preliminary approval for the proposed facility to be built at Oak Ridge National Laboratory (ORNL). The DOE directive is to design and build a short pulse spallation source in the 1 MS power range with sufficient design flexibility that it can be upgraded and operated at a significantly higher power at a later stage. The pre-conceptualized design of the NSNS initially consists of an accelerator system capable of delivering a 1 to 2 GeV proton beam with 1 MW of beam power in an approximate 0.5 microsecond pulse at a 60 Hz frequency onto a single target station. The NSNS will be upgraded in stages to a 5 MW facility with two target stations (a high power station operating at 60 Hz andmore » a low power station operating at 10 Hz). Each target station will contain four moderators (combinations of cryogenic and ambient temperature) and 18 beam liens for a total of 36 experiment stations. This paper summarizes the radiation transport analysis strategies for the proposed NSNS facility.« less

Authors:
;  [1]
  1. Oak Ridge National Lab., TN (United States). Computational Physics and Engineering Div.
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
Sponsoring Org.:
USDOE Office of Energy Research, Washington, DC (United States)
OSTI Identifier:
474903
Report Number(s):
CONF-970607-5
ON: DE97002638; TRN: 97:009795
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Conference
Resource Relation:
Conference: ARS `97: American Nuclear Society (ANS) international meeting on advanced reactors safety, Orlando, FL (United States), 1-5 Jun 1997; Other Information: PBD: [1997]
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCE TECHNOLOGY; 43 PARTICLE ACCELERATORS; NEUTRON SOURCES; RADIATION TRANSPORT; ACCELERATOR FACILITIES; DESIGN; SAFETY ANALYSIS; SHIELDING; RADIOACTIVATION; ENERGY ABSORPTION; DISCRETE ORDINATE METHOD; MONTE CARLO METHOD

Citation Formats

Johnson, J O, and Lillie, R A. Preliminary radiation transport analysis for the proposed National Spallation Neutron Source (NSNS). United States: N. p., 1997. Web.
Johnson, J O, & Lillie, R A. Preliminary radiation transport analysis for the proposed National Spallation Neutron Source (NSNS). United States.
Johnson, J O, and Lillie, R A. Sat . "Preliminary radiation transport analysis for the proposed National Spallation Neutron Source (NSNS)". United States. https://www.osti.gov/servlets/purl/474903.
@article{osti_474903,
title = {Preliminary radiation transport analysis for the proposed National Spallation Neutron Source (NSNS)},
author = {Johnson, J O and Lillie, R A},
abstractNote = {The use of neutrons in science and industry has increased continuously during the past 50 years with applications now widely used in physics, chemistry, biology, engineering, and medicine. Within this history, the relative merits of using pulsed accelerator spallation sources versus reactors for neutron sources as the preferred option for the future. To address this future need, the Department of Energy (DOE) has initiated a pre-conceptual design study for the National Spallation Neutron Source (NSNS) and given preliminary approval for the proposed facility to be built at Oak Ridge National Laboratory (ORNL). The DOE directive is to design and build a short pulse spallation source in the 1 MS power range with sufficient design flexibility that it can be upgraded and operated at a significantly higher power at a later stage. The pre-conceptualized design of the NSNS initially consists of an accelerator system capable of delivering a 1 to 2 GeV proton beam with 1 MW of beam power in an approximate 0.5 microsecond pulse at a 60 Hz frequency onto a single target station. The NSNS will be upgraded in stages to a 5 MW facility with two target stations (a high power station operating at 60 Hz and a low power station operating at 10 Hz). Each target station will contain four moderators (combinations of cryogenic and ambient temperature) and 18 beam liens for a total of 36 experiment stations. This paper summarizes the radiation transport analysis strategies for the proposed NSNS facility.},
doi = {},
url = {https://www.osti.gov/biblio/474903}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {3}
}

Conference:
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