The Folding Deuteron Optical Model Potentials

For 52 target nuclei with deuteron as projectile, we calculate the reaction cross sections and elastic scattering angular distributions, as well as the $\chi^2$ values for 11 kinds of deuteron optical model potentials: our global deuteron optical potentials and 10 folding optical potentials calculated with 2 phenomenological global nucleon optical potentials given by Koning \textit{et al}(KD) and by Varner\textit{et al}(CH89), and 8 microscopic nucleon optical potentials with the generalized Skyrme force parameters(GS1-6) and modified Skyrme force parameters(SKa, SKb). We find that for constructing the folding deuteron optical potential, both SKa and SKb are the best Skyrme force parameters of the microscopic nucleon optical potential proposed by Q. Shen \textit{et al}.Comment: 23 pages, 6 figure

The cross sections and energy spectra of the particle emission in proton induced reaction on

All cross sections of proton induced reactions, angular distributions, energy spectra and double differential cross sections of neutron, proton, deuteron, triton, helium and alpha-particle emissions for p+ 204,206,207,208Pb, 209Bi reactions are consistently calculated and analyzed at incident proton energies below 200 MeV. The optical model, the distorted wave Born approximation theory, the unified Hauser-Feshbach and exciton model which includes the improved Iwamoto-Harada model are used. Theoretically calculated results are compared with the existing experimental data

The calculation and evaluation for n+

All cross sections of neutron-induced reactions, angular distributions, double differential cross sections, angle-integrated spectra, γ-ray production cross sections and energy spectra for 54,56,57,58Fe are calculated by using theoretical models at incident neutron energies from 0.1 to 200 MeV. The present consistent theoretical calculated results are in good agreement with recent experimental data. The present evaluated data are compared with the existing experimental data and evaluated results from ENDF/B-VII, JENDL-4, JEFF-3, and the results are given in ENDF/B format

Review of daytime radiative cooling technologies and control methods

Cooling demand in buildings accounts for a significant portion of global energy consumption and is estimated to increase tenfold by 2050. Daytime radiative cooling shows great potential for reducing surface temperatures and cooling energy consumption of buildings by dissipating heat into cosmic space without consuming any energy. However, further commercial application of radiative cooling technologies requires improvements in their cooling efficiency, reduction of manufacturing costs, and optimisation of their seasonal suitability. Meanwhile, typical daytime radiative coolers with constant solar spectral reflective and mid-infrared emissivity cannot automatically switch off in cold winter and would lead to an energy penalty for heating. To overcome the above limitations, this paper reviews the types of daytime radiative coolers in terms of their structure and related temperature-adaptive control methods. The literature is also analysed to compare and evaluate the performance indicators, design methods, numerical simulation methods and manufacturing processes of daytime radiative coolers. Furthermore, the insulation and convection shielding methods during daytime radiative cooling experiments are also critically reviewed. The study also summarises recently developed temperature-adaptive daytime radiative coolers that utilize a daytime radiative cooler with a switching accessory or temperature-switching material. This paper critically reviews the switching control technologies, switching accessories and materials for the temperature-adaptive daytime radiative cooler to analyze their characteristics and their effect on the heat transfer of daytime radiative coolers. Finally, the potential temperature-adaptive switching materials that can be used for temperature-adaptive daytime radiative coolers are presented. The review demonstrated that the higher the solar reflectance and mid-infrared emissivity of the daytime radiative cooler, the larger the cooling temperature drop during daylight. Mie theory, Maxwell\u27s equations and finite difference time domain are commonly used for the design and simulation of daytime radiative coolers with commercial software. Daytime radiative cooler structures of nanoparticles in polymers, porous and random nanofibers structures are technically mature, less costly and suitable for mass production. The mechanical switching control system for daytime radiative cooling is sensitive, and the switching temperature can be set flexibly, but its limitations are complexity, durability and high cost. Temperature-adaptive switching materials (i.e. phase change materials and thermo-chromic materials) have the advantages of adaptive passive control and easy integration into daytime radiative coolers. Overall, this review contributes to guiding the development of radiative cooling technologies through the comparison of the cooling effect, manufacturing process, manufacturing cost, advantages and disadvantages of current control methods and materials for DRCers

The evaluated nuclear data library for ADS in China

The neutron and proton reaction data up to 200 MeV are calculated and evaluated using both nuclear model calculations and experimental data for Accelerator Driven System (ADS). The evaluated methods and results of neutron and proton reaction data and present status of evaluated nuclear data library in China are introduced

The calculation and evaluation for n+ 54,56,57,58

All cross sections of neutron-induced reactions, angular distributions, double differential cross sections, angle-integrated spectra, γ-ray production cross sections and energy spectra for 54,56,57,58Fe are calculated by using theoretical models at incident neutron energies from 0.1 to 200 MeV. The present consistent theoretical calculated results are in good agreement with recent experimental data. The present evaluated data are compared with the existing experimental data and evaluated results from ENDF/B-VII, JENDL-4, JEFF-3, and the results are given in ENDF/B format