نتایج جستجو برای: nuclear density distributions

تعداد نتایج: 757009  

Journal: :Iraqi Journal of Physics (IJP) 2019

Journal: :Progress of Theoretical Physics Supplement 2012

Journal: :International Journal of Modern Physics E 1998

1998
T. Rauscher R. Bieber H. Oberhummer K. - L. Kratz J. Dobaczewski P. Möller M. M. Sharma

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We calculate direct neutron capture on the even-even isotopes 124−145 Sn and 208−238 Pb with energy levels, masses, and nuclear density distributions taken from different nuclear-structure models. The utilized structure models are a Hartree-Fock-Bogoliubov model, a rela-tivistic mean f...

ژورنال: اندیشه آماری 2018

The normal distribution plays an important role in statistical analysis‎. ‎However‎, ‎a researcher may also wish to construct another symmetric distributions which fit the data better than the normal distribution‎. ‎For this purpose‎, ‎more flexible distributions have been introduced‎. ‎In this thesis‎, ‎we introduce some of such distributions‎. ‎We first introduce the slash distribution as a f...

1998
T. Rauscher R. Bieber H. Oberhummer K.-L. Kratz J. Dobaczewski P. Möller

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We calculate direct neutron capture on the even-even isotopes 124−145Sn and 208−238Pb with energy levels, masses, and nuclear density distributions taken from different nuclear-structure models. The utilized structure models are a Hartree-Fock-Bogoliubov model, a relativistic mean fiel...

Journal: :iranian journal of radiation research 0
s.m.j. mortazavi department of radiology, school of paramedical sciences, shiraz university of medical sciences, shiraz, iran m.a. mosleh-shirazi radiotherapy physics unit, radiotherapy department, namazee hospital, shiraz university of medical sciences, shiraz, iran m.r. maheri civil engineering department, school of engineering, shiraz university, shiraz, iran h. yousefnia department of nuclear engineering, school of engineering, shiraz university of medical sciences, shiraz, iran s. zolghadri department of nuclear engineering, school of engineering, shiraz university of medical sciences, shiraz, iran a. haji-pour civil engineering department, school of engineering, shiraz university, shiraz, iran

background: in megavoltage radiotherapy rooms, ordinary concrete is usually used due to its low construction costs, although higher density concrete are sometimes used, as well. the use of high-density concrete decreases the required thickness of the concrete barrier hence, its disadvantage is its high cost. in a nuclear reactor, neutron radiation is the most difficult to shield. a method for p...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید