نتایج جستجو برای: dd neutron generator
تعداد نتایج: 96054 فیلتر نتایج به سال:
Background: Neutron contamination is produced in electron beams of linac when tooth or dental materials are located in the path of beam. Objective: This study aims to determine the neutron dose contamination from different dental restoration materials in electron mode of a linac. Material and Methods: In this experimental study, the neutron dose contamination was calculated in the p...
Abstract Measuring the scintillation and ionization yields of liquid xenon in response to ultra-low energy nuclear recoil events is necessary increase sensitivity experiments light dark matter. Neutron capture on can be used produce with energies below 0.3 keV NR via asymmetric emission γ rays during de-excitation. The feasibility an measurement using neutron was investigated for Michigan Xenon...
In order to achieve a thermal neutron beam for neutron radiography applications, a new neutron collimator has been designed, installed and characterized at Tehran Research Reactor (TRR). TRR is a 5 MW, open pool and light water coolant reactor with seven beam tubes. Neutron collimator that is an important part of neutron radiography system was installed in the six inch E beam tube. Collimator d...
Abstract Simulations of the DD neutron rates predicted by ASCOT and TRANSP Monte Carlo heating codes for a diverse set JET-C (JET with carbon plasma facing components) plasmas are compared. A previous study (Weisen et al 2017 Nucl. Fusion 57 076029) this data using found that systematically exceeded measured ones factors ranging between 1 2. No single explanation discrepancies was at time despi...
Neutron response Induced in Thermoluminescence Dosimeter TLD-700 chips due to reactions of thermal neutrons with slab phantom and Badge Dosimeter TLD-600,700 materials in a neutron-gamma mixed field was measured. Using the linear relationship between thermal neutron fluence and the thermal neutrons induced TL response with slab phantom, Badge-TLD Materials, an empirical relationship was introdu...
conclusions in selected recipients with psc, dd reconstruction is a safe and efficacious technique, with long-term clinical outcomes comparable to ryh. background while roux-en-y hepaticojejunostomy (ryh) is the common anastomotic technique for liver transplantation (lt) in patients with primary sclerosing cholangitis (psc), duct-to-duct (dd) reconstruction may be used if the recipient common b...
Error norms for three variants of Larsen’s benchmark problem are evaluated using three numerical methods for solving the discrete ordinates approximation of the neutron transport equation in multidimensional Cartesian geometry. The three variants ,of Larsen’s test problem are concerned with the incoming flux boundary conditions: unit incoming flux on the left and bottom edges (Larsen’s configur...
The MIT Linear Electrostatic Ion Accelerator (LEIA) generates DD and D(3)He fusion products for the development of nuclear diagnostics for Omega, Z, and the National Ignition Facility (NIF). Significant improvements to the system in recent years are presented. Fusion reaction rates, as high as 10(7) s(-1) and 10(6) s(-1) for DD and D(3)He, respectively, are now well regulated with a new ion sou...
Background: In high-intensity, mixed and pulsed neutron fields the use of spectrometers or area monitors with active detectors is useless in these conditions neutron measuring devices must have a passive detector. Here a passive neutron area monitor with CR39 track detector was designed and the response was calculated. Materials and Methods: The response of a passive neutron area monitor with C...
Background: Darier disease (DD) is an autosomal dominant genetic disorder which develops from a mutation in the ATP2A2 gene. Inflammatory myopathies (IM) are the largest group of potentially treatable myopathies. In this case, we report development of IM in a patient with DD for the second time in the literature. Case presentation: The patient is a 59-year-old female, a known case of DD,...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید