The Neutron Spectrum of NBS-1

Craig Heimbach

doi:10.1520/STP45434S

SYMPOSIA PAPER Published: 01 January 2007

STP45434S

The Neutron Spectrum of NBS-1

Source

A proposed set of photonuclear cross sections was used to calculate the neutron spectrum of a RaBe photoneutron source. The calculation used the gamma rays from ²²⁶Ra in equilibrium as a driver, transported the gamma rays through the materials of the source, calculated neutron production, and subsequent neutron scattering. The calculation produced 27 % more neutrons than measured, and predicted relatively more low-energy neutrons.

Author Information

Heimbach, Craig, R.

National Institute of Standards and Technology, Gaithersburg, MD

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Details

Developed by Committee: E10

Pages: 123–129

DOI: 10.1520/STP45434S

ISBN-EB: 978-0-8031-6242-6

ISBN-13: 978-0-8031-3412-6

The Neutron Spectrum of NBS-1

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