Calculated neutron spectrum in the TEVATRON tunnel and comparison with experimental data

doi:10.1016/0168-9002(90)90427-8

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 295, Issues 1–2, 1 October 1990, Pages 99-101

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Abstract

Calculated results of the longitudinal distribution as a function of energy of neutrons and the neutron spectrum with energy ≥ 40 keV in the TEVATRON tunnel are presented and compared with experimental data. The source in the calculations and the experiment was the interaction of the 900 GeV proton beam with N₂ gas. Some disagreement between the calculated and measured neutron flux distribution as a function of distance is found, but the calculated and measured neutron spectrum are in good agreement.

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Cited by (1)

The field of scattered radiation in the tunnel of the protor storage ring HERA: Measurements and calculations
1999, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
The field of scattered radiation produced by a stored 820 GeV proton beam in the HERA tunnel is studied. Neutron spectra and doses as well as fluences of charged particles were measured by means of conventional detectors. Secondary particles emitted at both small and large angles with respect to the beam are investigated. They were produced by interactions of the primary beam with a collimator and by interactions in the beam pipe with the rest gas, respectively. The results are compared with simulations performed by the Monte Carlo code FLUKA. Simplified geometries of the accelerator structure and its surroundings were used for the calculation. Measured and calculated doses agree within a factor of 2. On the basis of this agreement an analysis of the scattered radiation was performed by FLUKA to obtain fluences and doses due to scattered neutrons, protons, pions, electrons, positrons, and photons.

^☆: Research sponsored by Office of High Energy and Nuclear Physics, U.S. Department of Energy under Contract No. DE-AC05-84OR21400 with Martin Marietta Energy Systems, Inc.

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Calculated neutron spectrum in the TEVATRON tunnel and comparison with experimental data☆

Abstract

Oak Ridge National Laboratory, ORNL-4972

Central Design Group SSC-100