Evaluation and test of the response matrix of a multisphere neutron spectrometer in a wide energy range Part I. Calibration

Aroua, A.; Grecescu, M.; Lerch, P.; Pretre, S.; Valley, J.-F.; Vylet, V.

doi:10.1016/0168-9002(92)90404-r

Cited by 11 publications

(1 citation statement)

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“…Measurements of the count rates are successively taken with the bare counter, with the bare counter shielded by a cadmium sheath, and with the polyethylene spheres. The full description of the spectrometer, the establishment of its response matrix and the test of its global performance in reference neutron fields are already published (8) . *Corresponding author: thierry.buchillier@chuv.ch…”

Section: The Measuring Systemsmentioning

confidence: 99%

Neutron measurements around storage casks containing spent fuel and vitrified high-level radioactive waste at ZWILAG

Buchillier

Aroua

Bochud

2007

Radiation Protection Dosimetry

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Spectrometric and dosimetric measurements were made around a cask containing spent fuel and a cask containing high-level radioactive waste at the Swiss intermediate waste and spent fuel storage facility. A Bonner sphere spectrometer, an LB 6411 neutron monitor and an Automess Szintomat 6134A were used to characterise the n-g fields at several locations around the two casks. The results of these measurements show that the neutron fluence spectra around the cask containing radioactive waste are harder and higher in intensity than those measured in the vicinity of the spent fuel cask. The ambient dose equivalents measured with the LB 6411 neutron monitor are in good agreement with those obtained using the Bonner spheres, except for locations with soft neutron spectra where the monitor overestimates the neutron ambient dose equivalent by almost 50%.

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Section: The Measuring Systemsmentioning

confidence: 99%