Calculating atomic density maps without X-rays or neutrons

Bimodal Imaging Using Neutrons and X-rays

Experiments that combines the information from two different radiation sources can provide more information than experiments using single radiation sources. This claim was confirmed using the bimodal installation at the thermal neutron imaging beamline NEUTRA at Paul Scherrer Institut. This installation is equipped with a 60-320kV X-ray source and is used for mid-sized samples. The combination ...

The political and economic complementarity of neutrons and x-rays

Neoplasms of the glandular stomach in mice irradiated with x-rays or fast neutrons.

The incidence of gastric adenocarcinoma in animals is extremely low (13,14), and attempts to produce such tumors with various carcinogenic agents (11), including ionizing radiations (8), have been only moderately successful, at best. The present report deals with a number of malignant and premalignant lesions of the glandu lar stomach of the mouse occurring after wholebody irradiation with x-ra...

On the reflectivity of polymers: Neutrons and X-rays

Over the last few years reflectivity methods have emerged as key tools for the investigation of polymer surfaces and interfaces. The high spatial resolution of these techniques, of the order of 5 A, has provided a means of probing density gradients in polymers on a submolecular level. This resolution, coupled with selective labeling of all or parts of polymer chains has permitted the examinatio...

Debye Waller Factors and Lamb Factors in the Scattering of X-rays, -rays and Thermal Neutrons

The paper reviews the applicability of Debye-Waller factors and of Lamb factors to the non-resonant and resonant elastic scattering of X-rays, gamma-rays and thermal neutrons, emphasizing temporal aspects in the interactions. The influence of static disorder upon elastic scattering, in particular upon resonance scattering, is likewise treated. The scattering of X-rays, y-rays and thermal neutro...