1. The nitrogen camera and the detection of concealed explosives
2. A mobile light source for carbon/nitrogen cameras
3. D.V. Kostin, V.N. Melekhin, V.I. Shvedunov, N.P. Sobenin, W.P. Trower, in: J.L. Duggan, I.L. Morgan (Eds.), Proceedings of the Fourteenth International Conference on Application of Accelerators in Research and Industry, Am. Inst. Phys, Woodbury, 392 (1997) 1135
4. these proceedings (ECAART-5);Novikov;Nucl. Instr. and Meth. B,1998
5. K. Halbach, private communication