摘要：The aim of the ‘Ancient Charm’ project is to combine Neutron Tomography (NT),
Prompt Gamma Activation Analysis (PGAA), Time-of-flight Neutron Diffraction
(TOF-ND), Neutron Resonance Capture Analysis (NRCA) and Neutron Resonance
Transmission (NRT) in order to generate 3D images of the elemental and phase
compositions of complex museum objects. For the development and benchmark of the
combined methods, complex test samples, so called ‘black boxes’, were
constructed and then analysed by the different techniques. These test objects
are sealed iron or aluminium-walled cubes of 40 and 50 mm edge lengths,
respectively, containing 2D or 3D arrangements of materials relevant to the
compositions of archaeological samples. The Prompt Gamma Activation Imaging
(PGAI) is a new terminology – introduced in the AC project – for determining the
compositions of small volumes within the sample by scanning. The experimental
results obtained from PGAI on boxes investigated at Budapest Neutron Centre
(BNC, Hungary) are reported.
关键词：PROMPT GAMMA ACTIVATION IMAGING, NEUTRON, 3D ELEMENT MAPPING, ANCIENT CHARM
