scholarly journals Recent progress of pulsed neutron imaging in Japan

2012 ◽  
Vol 26 ◽  
pp. 219-222 ◽  
Author(s):  
Yoshikai Kiyanagi ◽  
Hirotaka Sato ◽  
Kenji Iwase ◽  
Takashi Kamiyama
Keyword(s):  
Recent Progress ◽  
Neutron Imaging ◽  
Pulsed Neutron

scholarly journals Present Status of Research on Pulsed Neutron Imaging in Japan

2013 ◽  
Vol 43 ◽  
pp. 92-99 ◽  
Author(s):  
Y. Kiyanagi ◽  
T. Shinohara ◽  
T. Kai ◽  
T. Kamiyama ◽  
H. Sato ◽  
...  
Keyword(s):  
Present Status ◽  
Neutron Imaging ◽  
Pulsed Neutron

Application of Spectroscopic Radiography Using Pulsed Neutron Time-of-Flight Method for Material Characterization

2006 ◽  
Vol 321-323 ◽  
pp. 1663-1666 ◽  
Author(s):  
Yoshiaki Kiyanagi ◽  
Takashi Kamiyama ◽  
Toshiyuki Nagata ◽  
F. Hiraga
Keyword(s):  
Material Characterization ◽  
Time Of Flight ◽  
Neutron Imaging ◽  
Whole Body ◽  
Structure Information ◽  
Transmission Image ◽  
Neutron Time ◽  
The Difference ◽  
Pulsed Neutron ◽  
Time Of Flight Method

Neutron imaging using a pulsed neutron time-of-flight method can give an energy dependent transmission image, namely, spectroscopic image. This image includes the structure information if the sample is coherent scatterer. Here, two examples are introduced. First, we obtained the transmission image of a welded sample of SS304 and 308. Change of the crystal structure depending on the position was observed. Furthermore, we measured spatial dependent transmission of SS samples treated in different ways, surface treatment and whole body treatment. There were almost no spatial dependent change, but the cross section change was found between surface and whole body treatment samples. It was suggested that this might be due to the difference of a grain size. These results demonstrated that the spectroscopic imaging using a pulsed neutron source is a useful tool for material characterization.

Pulsed-neutron imaging by a high-speed camera and center-of-gravity processing

2018 ◽  
Vol 13 (01) ◽  
pp. C01038-C01038 ◽  
Author(s):  
K. Mochiki ◽  
T. Uragaki ◽  
J. Koide ◽  
Y. Kushima ◽  
J. Kawarabayashi ◽  
...  
Keyword(s):  
High Speed ◽  
Center Of Gravity ◽  
Neutron Imaging ◽  
High Speed Camera ◽  
Pulsed Neutron

scholarly journals Recent Progress of Radiography and Tomography at the Energy-resolved Neutron Imaging System RADEN

2017 ◽  
Vol 88 ◽  
pp. 162-166 ◽  
Author(s):  
Y. Matsumoto ◽  
M. Segawa ◽  
T. Kai ◽  
T. Shinohara ◽  
T. Nakatani ◽  
...  
Keyword(s):  
Recent Progress ◽  
Imaging System ◽  
Neutron Imaging

scholarly journals Neutron-based techniques for archaeometry: characterization of a Sardinian boat model

2021 ◽  
Vol 13 (6) ◽  
Author(s):  
A. Depalmas ◽  
M. Cataldo ◽  
F. Grazzi ◽  
A. Scherillo ◽  
A. Fedrigo ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Conservation Status ◽  
Neutron Imaging ◽  
Ship Model ◽  
North East ◽  
Depth Analysis ◽  
Effective Use ◽  
Pulsed Neutron ◽  
Archaeological Objects

AbstractSardinian metallurgy produced samples of high artistic and historical value. In particular, ship models are rare and unmatched examples of the mastery reached by Sardinian metallurgists and their production process deserves an in-depth analysis of all the phases involved in the making. In this work, we examined a Sardinian boat model to obtain information about its composition, microstructure and manufacturing technique. The object is a small bronze ship model that was found near the Nuraghe Colovros, located in north-east Sardinia (Italy). It was analysed by means of neutron imaging and neutron diffraction experiments at the ISIS Pulsed Neutron and Muon Source laboratory (Harwell, UK). Neutron techniques are relatively new in the field of archaeometry, but they are a very effective tool for the study of archaeological objects: they permit to survey complete artefacts, determine compositions and structures, assess the conservation status and address questions of effective use and casting techniques. This type of data can add new and different insights to existing archaeological information, especially where sampling is not permitted. The outcome of the study reveals a peculiar approach to the manufacturing of the boat model.

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