Page 115 - Neutrons for Sciences and Society

Chapter 5: The construction of the reactor and the scientific groups
Fig. 5.3: The gamma-ray diffractometer proposed by Heinz Maier-Leibnitz and built by Jochen Schneider in 1970.
A gold foil irradiated at the CENG reactor Siloé emitted radiation with a very short wavelength (0.03 Å). It was the first instrument of this type in the world. When Siloé was shutdown (1988), it was replaced by a hard X-ray diffractometer.
gamma-ray diffractometers were in use even before the reactor was operational, to monitor crystal growth and the evolution of their mosaïcity spread under pressure, etc.
The ILL had to rely upon itself to fabricate these single crystals: in general, industry was very reluctant to get involved in a field where the prospects were so limited.
Monochromators is not all about neutron optics but multilayers for neutrons came later and other groups were in charge of choppers, neutron guides, etc.
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