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Abstract: A recently developed add-on card for data acquisition from National Instrument has the possibility of being employed in the field of the gamma ray spectrometry as an industrial and teaching tool. The card''s technical capability, the operating program designed for gamma spectrometry and results of the system''s reliability, dynamic characteristics, limits in data processing and the quality of the obtainable gamma spectra are given. The advantages and deficiencies as well as important features are emphasised when prompt gamma analysis is of interest in industrial applications and educational issues. [Copyright &y& Elsevier]

A new composite detector has been developed by combining two different commercial scintillators. The device has the capability to detect gamma rays as well as thermal and fast neutrons; the signal discrimination between the three types is performed on-line by means of waveform digitizers and PSD algorithms. This work describes the assembled detector and its discrimination performance to be employed in the applied field. [ABSTRACT FROM AUTHOR]

A commercial boron-loaded liquid scintillator EJ-339 A was studied, using a 252 Cf source with/without polyethylene moderator, to examine the possibility of discriminating slow-neutron induced events in 10 B from fast-neutron events, resulting from proton recoils, and gamma-ray events. Despite the strong light quenching associated with neutron induced events in 10 B, correct classification of these events is shown to be possible with the aid of digital signal processing. [ABSTRACT FROM AUTHOR]

Abstract: A new laboratory facility for non-destructive analysis (NDA) using a time-tagged 252Cf source is presented. The system is designed to analyze samples having maximum size of about 20×25cm2, the material recognition being obtained by measuring simultaneously total and energy dependent transmission of neutrons and gamma rays. The equipment technical characteristics and performances of the NDA system are presented, exploring also limits due to the sample thickness. Some recent applications in the field of cultural heritage are presented. [Copyright &y& Elsevier]

Abstract: Material recognition by measuring simultaneously the transmission of neutron and gamma ray produced by a 252Cf source has been studied, determining the average atomic number resolving power. In addition, it is demonstrated the possibility to derive direct signatures able to identify light elements (C, N, O) using the measured transmission versus neutron time-of-flight. This allows one to determine the relevant elemental ratios (C/O and C/N) normally used to identify threat organic materials such as explosives and drugs. [Copyright &y& Elsevier]