نتایج جستجو برای: dt neutron generator

تعداد نتایج: 103915  

Journal: :Neurochemistry international 2006
Zsolt Radak Anna Toldy Zsofia Szabo Savvas Siamilis Csaba Nyakas Gabriella Silye Judit Jakus Sataro Goto

In the current investigation we tested how swimming training (T) (8 week, 5 times/week, 2 h/day), and detraining (DT) affects brain functions and oxidative stress markers in rat brain. The free radical concentration, measured by electron paramagnetic resonance, decreased in brain of T and DT rats compared to controls (C). The level of brain-derived neurotrophic factor (BDNF) increased as a resu...

2006
Phu Chien Nguyen Kouzou Ohara Akira Mogi Hiroshi Motoda Takashi Washio

A decision tree is an effective means of data classification from which one can obtain rules that are easy to understand. However, decision trees cannot be conventionally constructed for data which are not explicitly expressed with attribute-value pairs such as graph-structured data. We have proposed a novel algorithm, named Chunkingless Graph-Based Induction (Cl-GBI), for extracting typical pa...

Journal: :The Review of scientific instruments 2010
G Ericsson S Conroy M Gatu Johnson E Andersson Sundén M Cecconello J Eriksson C Hellesen S Sangaroon M Weiszflog

The determination of the fuel ion ratio n(t)/n(d) in ITER is required at a precision of 20%, time resolution of 100 ms, spatial resolution of a/10, and over a range of 0.01<n(T)/n(D)<10. We use simplified but realistic Monte Carlo models of ITER to assess the possibility to use neutron emission spectroscopy (NES) for such measurements. We show that NES meets the requirements for ion temperature...

ژورنال: سنجش و ایمنی پرتو 2015

Upon increasing needs and vast application of neutron detectors, especially in nuclear reactors and growing number of linear accelerators, design and manufacturing of neutron detectors is a serious demand. The aim of this project is building neutron detectors capable of compensating gamma and temperature response in a radiation media. A special thermocouple coated with Boron carbide at the junc...

D. Fatehi, H. Mozdarani,

Background: To evaluate the effects of hyperthermia (HT) on the frequency of chromosomal aberrations induced by a low dose of neutron or γ-rays in human peripheral blood lymphocytes. Materials and Methods: Blood samples were exposed to HT (41.5°C for 30 and 60min, 43°C for 15 and 30min), 10 cGy neutron or γ-rays, HT + neutron/γ, and neutron/γ + HT. After standard cell culture, harvestin...

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...

Journal: :Journal of Instrumentation 2023

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...

ژورنال: سنجش و ایمنی پرتو 2016

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید