نتایج جستجو برای: delayed neutron

تعداد نتایج: 146806  

Journal: :Physical review letters 2010
A N Andreyev J Elseviers M Huyse P Van Duppen S Antalic A Barzakh N Bree T E Cocolios V F Comas J Diriken D Fedorov V Fedosseev S Franchoo J A Heredia O Ivanov U Köster B A Marsh K Nishio R D Page N Patronis M Seliverstov I Tsekhanovich P Van den Bergh J Van De Walle M Venhart S Vermote M Veselsky C Wagemans T Ichikawa A Iwamoto P Möller A J Sierk

A very exotic process of β-delayed fission of 180Tl is studied in detail by using resonant laser ionization with subsequent mass separation at ISOLDE (CERN). In contrast to common expectations, the fission-fragment mass distribution of the post-β-decay daughter nucleus 180Hg (N/Z=1.25) is asymmetric. This asymmetry is more surprising since a mass-symmetric split of this extremely neutron-defici...

صالحی, روح اله, طاهری, محمد, عبداله زاده, مسعود, قاسمی, عباس,

  Background : Performing successful BNCT experiments needs a suitable neutron source. Important factors of the neutron beam are flux and energy that are very important in the selection of neutron source. In most centers that use this method for treatment, reactor is a neutron source, which according to characteristics of the reactor appropriated neutrons are very high. High cost of constructin...

Journal: :medical journal of islamic republic of iran 0
m. ayubian iran university of medical sciences.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) k. kamali moghadam atomic energy organizationسازمان اصلی تایید شده: سازمان انرژی اتمی (atomic energy organization) t. taheri atomic energy organizationسازمان اصلی تایید شده: سازمان انرژی اتمی (atomic energy organization)

abstract background: with respect to the difference in the interaction of thermal neutron and x rays with matter, using two radiography systems of thermal neutron and x rays will yield highly valuable information for studying the inner structure of biologic samples. methods: the high sensitivity of thermal neutron to hydrogen, in particular, has led to recognizing this system as a useful tool i...

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