ANOMALOUS X-RAY TRANSMISSION CHANGES IN COPPER CRYSTALS N ELECTRON IRRADIATION AT 14 K

摘要

Anomalous X-ray transmission measurements were made at 4,2 K on nearly perfect crystals before and after irradiation at 14 K with 3 MeV electrons- Simultaneous resistance measurements were taken on high purity copper wires. The measured intensity changes for (111), (222), (333), (220), (200), and (400) reflecting planes were investigated at intervals during the irradiation. Annealing studies at 22 K, 37 K, 78 K, and 295 K show X-ray intensity recoveries similar to resistance recoveries.