1. 1) U. Ewert, J. Robbel, C. Bellon, A. Schumm and C. Nockemann: Materialforschung 37 (1995) 218–222.
2. 2) B. Redmer, J. Robbel, U. Ewert and V. Vengrinovich: Insight 44 (2002) 564–567.
3. 3) B. Redmer, U. Ewert, B. Neundorf and M. Jakob: 9th ECNDT, 25–29 Sept. 2006, Berlin, Germany, http://www.ndt.net/article/ecndt2006/doc/We.3.2.3.pdf.
4. 4) X-ray tube design: RTW RÖNTGEN-TECHNIK DR. WARRIKHOFF KG, http://www.rtwxray.de/index.php?id=oemdesigns.
5. 5) Detector design: Oy AJAT Ltd, Technical description of DIC100T, DIC50T and DIC25T, http://www.ajat.fi/products_dic.php.