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Multisample holders for On Site inspection: efficiency calculation and experimental set up

Authors

Rizzo A, Salvi S, Lo Meo S, Nava E, Borgognoni F, Telloli C, Ottaviano G Year 2023

Pubblication type

Poster International Conference with referee

Abstract

During search logic, the technique of environmental sampling can play a role in narrowing down the areas
of interest and prioritising the field mission. One methodology to achieve this purpose is to collect several
samples from the same search zone and screen out any anomaly in the gamma spectra of the samples. To
ensure a high throughput screening process it can be useful to gang the samples collected in the same search
zoneandtoperformasinglelongmeasurements. Inordertohaveafixedgeometrywehavefabricatedamulti
sample holder, with two separate layers, for the purpose of analysing simultaneously up to 13 samples with a
defined IFE geometry. The geometry of the system has been simulated by Geant4 code and an experimental
set up has been implemented using spiked samples put in different positions of the holder (upper and lower
layers) in order to charactoerise this geometry and to compare the efficiency of each positions. Two different
scenarios has been simulated: one with several sample containers and identical content and one with the same
number of containers but with only one with spiked sample.

Reference

CTBTO. Snt2023 Conference, Vienna (Austria)
19-23 giugno 2023
P3.3-850

PDF Directly downloadable file

/tecnopolo/download/bibliografia/pdf/P3.3-850_Rizzo_lightning.pdf

Research unit

NDC

LastUpdate

12/11/2025

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