Nitrogen contamination in elastic neutron scattering
نویسندگان
چکیده
منابع مشابه
Nitrogen Contamination in Elastic Neutron Scattering
Neutron diffraction measurements have been carried out on a single crystal of the iron-based superconductor system SrFe1.92Ni0.08As2. Nitrogen gas sealed in the sample container was found to produce Bragg peaks over a limited range of temperature that were symmetrically positioned around the strongest magnetic Bragg peak in the system, giving the appearance of transition to an incommensurate ma...
متن کاملNEUTRON SCATTERING STUDY OF ELASTIC MAGNETIC SIGNALS IN SUPERCONDUCTING La1.94Sr0.06CuO4
Recent neutron-scattering experiments on La2−xSrxCuO4 single crystals by Wakimoto et al. have revealed that elastic magnetic peaks appear at low temperatures in both insulating (x = 0.02 − 0.05) and superconducting (x = 0.06) samples. We have carried out further investigations particularly on the elastic incommensurate peaks for x = 0.06, and found that the integrated intensity drastically chan...
متن کاملNeutron Contamination Unexpected Dose in Varian LINAC
Introduction: Neutron contamination is very harmful for the patients receiving radiation therapy due to the high relative biological effect of neutrons. Medical linear accelerators head are made up of materials with high atomic numbers, and High-energy photons interaction with heavy materials can produce neutron contamination. In this study, neutron equivalent dose, neutron spe...
متن کاملIncommensurate phase of quartz : I. Elastic neutron scattering
2014 We report on elastic neutron scattering results showing that the intermediate phase of quartz existing in a 1.3 K range between the 03B1 and 03B2 phases is in fact incommensurate. Six satellites are observed around most Bragg peaks along the three [100] directions of reciprocal space. The modulation corresponds to the superposition of sinusoidal plane waves as no higher order harmonics are...
متن کاملNeutron Form Factors from Quasi-Elastic Electron-Deuteron Scattering
The differential cross section for quasi-elastic electron-deuteron scattering has been measured at the Cambridge Electron Accelerator in the four-momentum-transfer region from 7 to 115 PfC0.27 to 4.47 (Bev/~)~] . The method used involved a coincidence between scattered electrons and recoiling protons. Electrons without a high-energy proton in coincidence were assumed to be due to a neutron inte...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Measurement Science and Technology
سال: 2011
ISSN: 0957-0233,1361-6501
DOI: 10.1088/0957-0233/22/4/047001