Neutron Radiography and neutron imaging solutions are a specialty of Nray Services Inc. Head Office: 56A Head Street Dundas Ontario, Canada L9H 3H7 Phone: 905.627.1302 Fax: 905.627.5022  The term nray can also be spelled n-ray or NR
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Glossary of



N-ray vs X-ray
(what's the difference?)

IQI Tutorial (PDF)

ASTM E-803 Calculator

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ASTM standard E-803 is a standard method for determining the effective collimation ratio or L/D ratio of neutron radiography beams. This calculator is designed to provide assistance with the mathematical calculations that are required when using an NU (No Umbra) device to measure L/D. The results calculated on this page are in accordance with ASTM E-803, based on the data entered.

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