نتایج جستجو برای: gamma rays and mutant line

تعداد نتایج: 16915120  

Ahmad Arzani, Mozhgan Abtahi

Mutation induction is considered as an effective way to enrich plant genetic variation, particularly for traits with a very low level of genetic variation. This research was conducted to assess genetic variation induced by gamma radiation in M2 and M3 mutant lines of canola (Brassica napus L.) by SSR and morphological characteristics and to identify useful mutants in terms of agronomic traits. ...

Ghorbanali Nematzadeh Mehdi Arefrad Nadali Babaian Jelodar Seyyed Kamal Kazemitabar

Gamma irradiation was used at different doses (80, 160 and 240 Gy) on Glycine Max (L.) Merrill cv. Hill homogenous seeds. A single suitable M2 plant was selected and evaluated at M3 and M4 along with its parent and three other varieties as control in RCBD experiment in Sari Agricultural Sciences and Natural Resources University’s experimental field. M-8...

Journal: :Radiation protection dosimetry 2012
Praneeth Kandlakunta Lei Cao

Gadolinium is a competent neutron conversion material for neutron detection due to its extremely high neutron capture cross section. It differs from the other neutron reactive materials by emitting large amounts of low-energy electrons for the consequent signal generation in a detector. Such low-energy electrons, though abundant, are prone to be contaminated by internal and/or external gamma ra...

2005
Kunihito Ioka Soebur Razzaque Shiho Kobayashi

We estimate the high energy neutrino flux from the giant flare of SGR 180620 on December 27, 2004, which irradiated Earth with a gamma-ray flux ∼ 10 times larger than the most luminous gamma-ray bursts (GRBs) ever detected. The Antarctic Cherenkov neutrino detector AMANDA was on-line during the flare, and may either have detected high energy neutrinos for the first time from a cosmic point sour...

ژورنال: سنجش و ایمنی پرتو 2018

Recently, polymeric nanocomposites have been used in dosimetry and detection of gamma rays, but due to their low photon absorption cross section, they exhibit a small sensitivity to gamma rays. In order to overcome this problem, metal oxide particles with a high atomic number are added to the polymer matrix. For this purpose, in this work, tungsten oxide particles (WO3) were distributed in poly...

1996
Reuven Ramaty

Gamma ray emission lines resulting from accelerated particle bombardment of ambient gas can serve as an important spectroscopic tool for abundance determinations. The method is illustrated by considering the gamma ray line emission observed from solar flares. The observation of similar gamma ray lines from Orion suggests the existence of large fluxes of low energy Galactic cosmic rays. The role...

سمیعی , فرهاد, شهیدی , مریم, مزدارانی , حسین,

Background and purpose: Previous investigations have shown that cimetidine (Çi) and ranitidine (Rn) have radioprotective effects against gamma rays. Ïn this study, the radioprotective effects of famotidine (Ft), Which acts like Çi and Rn as histamine H2 – receptor – antagonist, were investigated in male bulb/c mice bone marrow cells by means of the micronucleus test. Materials and Methods:...

C. Geng, C. Gong, D. Shu, H. Yu, S. Fatemi, W. Shao, X. Tang,

Background: Boron neutron capture therapy (BNCT) is a binary radiotherapy combining biochemical targeting with neutron irradiation. However, monitoring the boron distribution is a fundamental problem in BNCT. Prompt gamma rays emitted by boron capture reaction can be used to address the issue. Materials and Methods: The general-purpose Monte Carlo toolkits Geant4 and MCNP were used for the simu...

Journal: :Chemical and Biological Technologies in Agriculture 2021

Abstract Background Previous literatures revealed that gamma rays have an increasing effect on salt tolerance in different plants. In vitro experiment was conducted to study the of (20 Gray) four potato cultivars (Lady Rosetta, Diamante, Gold, and Santana). Results Gamma-treated Santana plantlets were more tolerant salinity as compared other cultivars. It showed a significant increment fresh we...

Journal: :journal of plant molecular breeding 2013
mehdi arefrad ghorbanali nematzadeh nadali babaian jelodar seyyed kamal kazemitabar

gamma irradiation was used at different doses (80, 160 and 240 gy) on glycine max (l.) merrill cv. hill homogenous seeds. a single suitable m2 plant was selected and evaluated at m3 and m4 along with its parent and three other varieties as control in rcbd experiment in sari agricultural sciences and natural resources university’s experimental field. m-80-709 and m-160-3429 mutant lines were sig...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید