EP862226-A  CASTOLDI A ET AL: "A new silicon drift detector with reduced lateral diffusion" NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, vol. 377, no. 2, 1 August 1996, page 375-380 XP004008281;  CASTOLDI A ET AL: "CONCEPTION AND DESIGN CRITERIA OF A NOVEL SILICON DEVICE FOR THE MEASUREMENT OF POSITION AND ENERGY OF X RAYS" IEEE TRANSACTIONS ON NUCLEAR SCIENCE, vol. 44, no. 5, October 1997, pages 1724-1732, XP000774121;  KEMMER J: "ADVANCED CONCEPTS FOR SEMICONDUCTOR NUCLEAR RADIATION DETECTORS" NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - B: BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol. B45, no. 1/04, 2 January 1990, pages 247-251, XP000094978;  STRUDER L: "RECENT DEVELOPMENTS IN SEMICONDUCTOR DETECTORS AND ON-CHIP ELECTRONICS*" NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, vol. A283, no. 3, 10 November 1989, pages 387-398, XP000074051US6249033-B1  Castoldi A., et al.: "A New Silicon Drift Detector with Reduced Lateral Diffusion", Nuclear Instruments and Methods in Physics Research, vol. 377, No. 2, Aug. 1996, pp. 375-380.;  Castoldi A., et al.: "Conception and Design Criteria of a Novel Silicon Device for the Measurement of Position and Energy of X Rays", IEEE Transactions on Nuclear Science, vol. 44, No. 5, Oct. 1997, pp. 1724-1732.;  Kemmer, J.: "Advanced Concepts for Semiconductor Nuclear Radiation Detectors", Nuclear Instruments and Methods in Physics Research, vol. B45, No. 1/04, Jan. 2, 1990, pp. 247-251.;  Struder L.: "Recent Developments in Semicondutor Detectors and On-Chip Electronics", Nuclear Instruments and Methods in Physics Research, vol. A 283, No. 3, Nov. 10, 1989, pp. 387-398.EP862226-B1  CASTOLDI A ET AL: "A new silicon drift detector with reduced lateral diffusion" NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, vol. 377, no. 2, 1 August 1996, page 375-380 XP004008281;  CASTOLDI A ET AL: "CONCEPTION AND DESIGN CRITERIA OF A NOVEL SILICON DEVICE FOR THE MEASUREMENT OF POSITION AND ENERGY OF X RAYS" IEEE TRANSACTIONS ON NUCLEAR SCIENCE, vol. 44, no. 5, October 1997, pages 1724-1732, XP000774121;  KEMMER J: "ADVANCED CONCEPTS FOR SEMICONDUCTOR NUCLEAR RADIATION DETECTORS" NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - B: BEAM INTERACTIONS WITH MATERIALS AND ATOMS, vol. B45, no. 1/04, 2 January 1990, pages 247-251, XP000094978;  STRUDER L: "RECENT DEVELOPMENTS IN SEMICONDUCTOR DETECTORS AND ON-CHIP ELECTRONICS*" NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - A: ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, vol. A283, no. 3, 10 November 1989, pages 387-398, XP000074051