منابع مشابه
Gamma Ray Interaction and "Neutron Capture Gamma Ray Technique for the Analysis of Cu-Ni Alloys"
The neutron capture gamma-ray technique was used for the analysis of Cu-Ni alloys, widely used in industry. The two elements, which are very close in atomic number, have widely separated characteristic capture gamma quanta. A sensitivity of 7x10 counts per unit thermal neutron flounce per 1% change in Ni/Cu ratio was obtained. Samples of any shape can be analyzed without a need for any special ...
متن کاملNeutron Capture Gamma Rays ( Thermal Neutron
Detection of landmines using nuclear techniques has been studied extensively since the late 1940s. Nuclear techniques look at either a return radiation, which is characteristic of explosive components that are infrequently found in soil (e.g., nitrogen or carbon), or an intensity change of a noncharacteristic scattered radiation, which is a function of a parameter that differs between soil and ...
متن کامل10B Concentration, Phantom Size and Tumor Location Dependent Dose Enhancement and Neutron Spectra in Boron Neutron Capture Therapy
Background: The amount of average dose enhancement in tumor loaded with 10B may vary due to various factors in boron neutron capture therapy.Objective: This study aims to evaluate dose enhancement in tumor loaded with 10B under influence of various factors and investigate the dependence of this dose enhancement on neutron spectra changes.Material and Methods: In this simulation stud...
متن کاملComplex Gamma Ray Spectra Analysis
The gamma ray spectrometry laboratory of the University of Bucharest was designed for the analysis of low-level radioactivity samples. High efficiency shielded HPGe detectors are used. Efficiency calibration is achieved by complementing experimental calibration with Monte Carlo computation carried out using GESPECOR, also applied for the evaluation of coincidence summing corrections. Low detect...
متن کاملDevelopment of a Gamma Ray Telescope for Online Synovial Dosimetry In Boron Neutron Capture Synovectomy
Boron Neutron Capture Synovectomy (BNCS) is a novel application of the B(n,α) reaction for potential treatment of rheumatoid arthritis. During BNCS clinical trials, real-time knowledge of boron dose delivered to the synovium is necessary so that the remaining irradiation time can be determined. A 478 keV photon is emitted following 94% of boron neutron capture reactions, and detection of 478 ke...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1950
ISSN: 0031-899X
DOI: 10.1103/physrev.80.415