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<p>This International Standard defines an empirical technique for the measurement of the effective collimation ratio</p>
<p>and effective <i>L</i>/<i>D </i>of thermal neutron radiography beams for values between 20 and 1 000. The technique is based</p>
<p>upon analysis of a neutron radiographic image and is independent of measurements and calculations based on</p>
<p>physical dimensions of the collimator system. The device described in this International Standard has been</p>
<p>developed and tested using Gd foil converters with a single emulsion, high resolution film in vacuum cassettes.</p>
Reģistrācijas numurs (WIID)
2271
Darbības sfēra
<p>This International Standard defines an empirical technique for the measurement of the effective collimation ratio</p>
<p>and effective <i>L</i>/<i>D </i>of thermal neutron radiography beams for values between 20 and 1 000. The technique is based</p>
<p>upon analysis of a neutron radiographic image and is independent of measurements and calculations based on</p>
<p>physical dimensions of the collimator system. The device described in this International Standard has been</p>
<p>developed and tested using Gd foil converters with a single emulsion, high resolution film in vacuum cassettes.</p>
