IPERION CHIntegrated Platform for the European Research Infrastructure ON Cultural Heritage


At MTA Atomki the RBS technique is available in vacuum. The lateral resolution is excellent, down to the micron range. The thickness of a given layer is measured by dedicated RBS analysis, irradiating the sample with a He+ beam and detecting the energy of the backscattered particles. For heritage materials, a typical application is to measure the thickness of gold on gilded objects.


The RBS technique is applied at the Scanning Nuclear Microprobe (Oxford Microbeams) which was built at the 0°beam line of our 5 MV single ended vertical Van de Graaff accelerator. A possible arrangement: An ORTEC-type surface barrier silicon detector (‘‘ULTRA’’ Ion-Implanted, 50 mm2 sensitive area and 25 keV system energy resolution) is used. The detector is placed at a scattering angle of 165° at Cornell geometry.

Further reading:

  1. I. Balta, L. Csedreki et al. Ion beam analysis of golden threads from Romanian medieval textiles. Nuclear Instruments and Methods in Physics Research B 348 (2015) 285-290.


MTA-Atomki (HU)