[en] This is an outline of a large code for computing superthermal electron transport in laser fusion plasmas. The code involves the computations of mass, momentum, electron temperature, ion temperature, photon temperature, numbers of superthermal electrons and thermal electrons, electric field, etc.. But the numerical methods for superthermal electrons are centrally considered in this paper. Especially the mapping from kinetic energy bins into total energy bins is adopted. The figures of numerical simulation conforming with the experimental results are also presented

[en] Notre Dame (ND) and Dual-Kinetic-Balance (DKB) basis sets based on B-spline functions are used respectively to solve Dirac equation of hydrogen-like ions in the Gaussian Charge Distribution Model. The ground state energies are compared with those in the Point Charge Distribution Model and their corresponding experimental values. It is found that the nuclear charge distribution effect plays an important role, and the relative correction is gradually notable as Z increases. When Z is 100, the correction approaches 10^-3. In the near nuclear region, the wavefunctions in the two models are also presented. With the increase of Z, the difference of the wavefunctions is more obvious. Differing from the most of work which apply the B-splines to long-range calculations, in our work, the B-spline functions are successfully extended to study the short-range interaction between electron and nucleus. (authors)

[en] Objective: To investigate the efficiency of transcatheter uterine artery embolization (TUAE) for the treatment of adenomyosis. Methods: Sixteen cases received the treatment willingly. Bilateral uterine arterial embolization with Lipiodol ping yang mycm emulsion and Gel foam panicles was carried out in all patients. 3-6 months later, curative effect was observed after the operation. Results: Complete disappearance of menstrual pain was obtained in 81.25%, and obvious improvement 18.75%. (ultrasonic reexamination) 6 months after TUAE, the uterine volume was decreased by a mean of 45.98% and the volume of the localized lesions was decreased by a mean of 58.83%. The hemoglobin concentration of the patients with hanemia was significantly increased or restored to normal after the surgery. Conclusion: TUAE shows good short term effect in the treatment of adenomyosis. (authors)

[en] Objective: To study the feasibility and the clinical effect of the treatment of tubule pregnancy by using interventional technique through selective uterine artery. Methods: By using seldinger's method, 48 cases received interventional treatment, followed by perfusion of methotrexate (MTX) 100 mg through Tube 4-5 F. The concentration of serum β-HCG, the changes of pelvic cavity, and the open condition of amnion by ultrasonic examination. Results: The cure rate of 47 cases was 97.92%. No serious reaction. After treatment, the mean time that the serum β-HCG concentration returned to normal was 14-28 days and the mean time was 18 days. Conclusion: The treatment of tubule pregnancy by interventional technique proved no harmful effect to reproductive organs and quick recovery. It is worth spreading

[en] For developing a novel high-current, long pulse width electron source, the theoretics and mechanism of the hollow cathode plasma electron-gun are analyzed in detail in this paper, the structure and the physical process of hollow cathode plasma electron-gun are also studied. This gun overcomes the limitations of most high-power microwave tubes, which employ either thermionic cathodes that produce low current-density beams because of the limitation of the space charge, or field-emission cathodes that offer high current density but provide only short pulse width because of plasma closure of the accelerating gap. In the theories studying on hollow cathode plasma electron-gun, the characteristic of the hollow-cathode discharge is introduced, the action during the forming of plasma of the stimulating electrode and the modulating anode are discussed, the movement of electrons and ions and the primary parameters are analyzed, and the formulas of the electric field, beam current density and the stabilization conditions of the beam current are also presented in this paper. The numerical simulation is carried out based on Poisson's equation, and the equations of current continuity and movement. And the optimized result is reported. On this basis, we have designed a hollow-cathode-plasma electron-gun, whose output pulse current is 2 kA, and pulse width is 1 microsecond

[en] A modulator type pulse generator which is based on Blumlein Pulse Forming Net and pulsed transformer, constructed by authors is described. This generator can deliver pulse of 300 kV to a load, and it has an output impedance of 100 Ω and a pulse width of 500 ns. It can operate steadily at pulse repetition rates as high as 100 Hz. Three kinds of cathodes are studies on this pulse generator, and the diode can deliver electron-beam pulse of nearly 300 kV, pulse width 500 ns and repetition frequency 50 Hz

[en] In the present work Ce³⁺-doped germanate glasses containing Gd₂O₃ and BaO or La₂O₃ were developed. The UV and VIS transmission spectra of these glasses were measured before and after irradiation at doses ranging between 3 and 277 Gy. The radiation induced absorption coefficient μ was calculated on the basis of the measured transmission spectra. From these results the cerium ions doping turns out to be effective in improving the radiation hardness of glasses with respect to their undoped matrices

[en] The propagation of laser-driven shock wave in the combined target with gold-layer, the shielding effects of gold-layer on the superthermal electrons and the function of gold-layer to the stability of shock wave are introduced. The designing method of target bases for Al-Cu impedance matching is also given. Targets with and without inserted gold-layer were constructed and tested at Senguang laser facility in 1989. After analyzing the tested data, it is confirmed that the 0.8 TPa high pressure was produced at the Cu sample and the measuring accuracy of shock wave velocity was better than 5%. The Al-Cu impedance matching test was fully success. These results are close to the experimental fitting curves (including the data of underground nuclear explosions) published by Nellis in 1988

[en] Zinc borosilicate glass is studied as a scintillating material. Glass samples with zinc oxide concentrations as high as 60 mol% were prepared successfully without deteriorating the glass-forming ability. Different post-preparation thermal treatments were carried out on the samples in the temperature range of 300-700 deg. C and for 3-8 h duration. A dominant emission band was observed near 400 nm in the luminescence spectra with the excitation peak near 260 nm. Photoluminescence decay kinetics shows dominant decay times of about 7-10 and 170-200 ns with a weak tail down to several tens of microseconds. Thermal treatment was found to enhance the 400 nm emission intensity several times with respect to an as-prepared sample and X-ray diffraction analysis confirmed the presence of ZnO crystallized phase in heavily annealed glass samples

[en] The modulation mechanism and RF extraction of an S-band relativistic klystron oscillator were studied via experiment. It is found that intense relativistic electron beams(IREBs) can generate intense current modulation when the IREBs drift through three pillboxes with high coupling. After bunching in the downstream the modulated IREBs can excite high power micro- wave in the triaxial cavity. The RKO has properties of short oscillating time, compact geometry and high beam-wave conversion efficiency. Using a 1 MV/13 kA/40 ns electron beam and leading magnetic field of 0.9 T, 3.5 GW radiated power was extracted in 20 ns FWHM pulses at 2.86 GHz. The beam-wave transition efficiency is 29%, and the instantaneous bandwidth is 2%. The radiated power is 3.4 GW with the efficiency of 26% when repetitive pulse frequency of IREBs is 20 Hz. The experimental results agree well with the simulation ones. (authors)