A neutron tomograph at the IR-8 reactor of the National Research Centre Kurchatov Institute

Neutron and Synchrotron Imaging Studies of Preservation State of Metal of Cultural Heritage Objects

“…Neutron studies were carried out at the IR-8 reactor. Most of the measurements were carried out at the "DRAKON" facility [5] ((NRC) "Kurchatov Institute", Moscow, Russia), whereas some measurements were conducted on a neutron tomograph [6]. At the DRAKON facility, the neutron beam was formed by a double monochromator with pyrolytic graphite crystals in 002 reflection; the neutron wavelength was 0.175-0.2 nm.…”

“…At the DRAKON facility, the neutron beam was formed by a double monochromator with pyrolytic graphite crystals in 002 reflection; the neutron wavelength was 0.175-0.2 nm. Neutron projections were recorded by a position-sensitive detector consisting of a scintillation screen based on a 200 µm thick mixture of ZnS(Ag) and 6 LiF, a mirror, an objective lens, and a charge-coupled device (CCD) matrix with dimensions of 2048 × 2048. The beam size was 7 × 7 cm.…”

“…When studying objects exceeding the size of the beam, the object was scanned with subsequent stitching of full projections or stitching of tomographic arrays. At the facility [6], the neutron beam was formed by a monochromator with a copper crystal in 111 reflection, the neutron wavelength was 0.152 nm, and a Soller slit was present with a divergence of 20 • . Neutron projections were recorded using the same type of position-sensitive detector with a 100 µm thick screen.…”

Synchrotron and Neutron Tomography of Paleontological Objects on the Facilities of the Kurchatov Institute

“…Brachiopod shells, skeletal remains of extinct echinoderms, fossil plants have been also studied [5,6]. The tomography facilities on the Kurchatov synchrotron radiation source and the IR-8 research reactor are used [7,8]. This article briefly presents the results of the joint research carried out in recent years.…”