A theory of sonoluminescence (SL) proposed asserts bubbles collapse in a pancake shape almost isothermally at constant volume. SL induced hot fusion at ~107°C is most likely impossible. By the proposed theory, the bubbles are treated as miniature IRasers with the dimension between pancake faces equal to the half wavelength of the standing wave in resonance with the IRaser cavity dimensions. Before collapse, the IRasers are filled with 5~10eV of IR radiation from the Planck energy in the ambient surroundings. During collapse, the IR radiation is trapped within the IRaser by the high IR reflectivity of the bubble wall water molecules. As the IRaser cavity dimension decreases, the cavity resonant frequency increases. The bubble wall molecules undergo a continuous population inversion by always being pumped to higher energy states that favor stimulated emission instead of absorption. IRaser resonant intensification produces 5~10 MeV, i.e., ~106UV photons with 5~10 eV. On average, SL induced cold fusion does not occur although a few X-ray photons are produced. If the IR thermal energy before collapse is enhanced to a total energy of 10 keV, say by exciting the vibration modes of the water molecules at 2.73 µm with a HF laser, collapse produces an average X-ray energy of about 10 keV. Unlike hot fusion, SL induced cold fusion is not impossible.
Vol.07, No.01
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696
Research article 01 Feb 1996
T V Prevenslik
keyword：Sonoluminescence；Maser；Cold fusion；Theory；Infrared；X-rays；
Research article 01 Feb 1996
Wang Shao-Shun
The two particle azimuthal correlations are observed but the azimuthal structure seems to be of stochastic nature, no jet-like structure was observed. And a new method is used to study the azimuthal substructure.
keyword：Azimuthal correlations；Ring-like structure；Jet-like structure；pp collisions；Mechanism of multiparticle production；Secondary particles；
Research article 01 Feb 1996
Xu Lei，Wu Xiao-Hua，Liu Wang-Yi，Li Min-Qian
It is tried to compare the effects of sample preparation on shapes and sizes of ribosomes deposited on mica. The apparent sizes of ribosomes in the atomic force microscopy (AFM) images are about 60 nm in most cases. The height appears to be indifferent to the sample preparation method and image conditions. It is found that the dehydration may greatly affect the topography of ribosomes. The volumes of ribosomes are estimated after considering the convolution effects of AFM tip on the appearance of ribosomes.
keyword：Atomic froce microscopoy；Eucaryotic ribosome；Topography；Size；Volume；Rat liver；Ambient condition；
Research article 01 Feb 1996
Li Qiang，Wei Zeng-Quan，Ma Shou-Wu
Progress in theoretical research into track structure and energy deposition distribution of heavy ions is introduced, and some research results are given, such as a Monte Carlo model of heavy ion track structure calculation, frequency distribution of energy deposition inside a electron track and radial dose distribution around a heavy ion path. Moreover, research direction in future is also analysed.
keyword：Heavy ions；Energy deposition；Monte Carlo calculation；Track structure；Radiation biological effect；
Research article 01 Feb 1996
Zhang Jia-Hua
The production of derived nuclides by the reaction of 238U with constant nuclear reactor neutron flux for long time is theoretically described. The concentration of each derived nuclide is zero at the beginning, then increases gradually and approaches a saturated value at a certain irradiation time. The whole system (including the parent nuclide 238U and all its derived nuclides) will be in a state of equilibrium. Upon the reaction with neutron flux, the whole system decreases its concentration at the same rate as 238U. It constitutes actually a new type of unstable nuclide series which is in work only in the presence of reactor neutron flux. It has been found that the amount of materials consumed by neutron flux reaction is almost converted entirely to fission product. This peculiar property is quite different from the well known four radioactive series, so that it is named the fifth unstable nuclide series.
keyword：238U；fission product；232Th；Unstable nuclide series；Derived nuclides；
Research article 01 Feb 1996
冯 世祥，宗 红石
The quadrupole angular-momentum radiation of gravity is obtained from the recently obtained covariant conservation law of angular-momentum. The result agrees with that derived from the Landau-Lifshitz energy-momentum pseudo-tensor.
keyword：General covariance；Conservation law；Radiation of angular momentum；
Research article 01 Feb 1996
Chen You-Hong，Zhu Jie-Qing，Wu Xian-Kang，Gu Ying-Mei，Zhang Qi，Xu Ping，Li Xiu-Yun
The proton microprobe and the quantitative micro-PIXE analysis technique are used to determine trace element composition and distribution in minerals of mantle peridotite, therefore, additional useful information is provided on the study of upper mantle mineral phase transformation. An example reported here is the study on the geochemical behavior of trace elements in minerals of Suoluoshu mantle peridotite from Shandong province, which was in the process of mineral phase transformation from spinel to garnet. The study shows that trace element composition and distribution display obvious change in minerals while the mineral phase is transformed from spinel to garnet. Most of the trace elements analyzed reside in clinopyroxene and spinel. However, garnet is nearly poor in all of these elements. This phenomenon is associated with the infiltration of solution and the existence of micrograined inclusions in minerals in the process of mantle metasomatism.
keyword：China；Mantle peridotite；Proton microprobe；Micro-PIXE analysis；Trace element composition and distribution；Suoluoshu mineral phase transformation from spinel to garnet；
Research article 01 Feb 1996
An Zhu，Li Tai-Hua，Wang Liang-Ming，Luo Zheng-Ming
The influence of substrate of thin targets on ionization cross sections has been corrected by a new method based upon the bipartition model of electron transport. The measured cross sections for Cu element are in good agreement with existing experimental data and those produced by the empirical formula of Green and Cosslett. Cross sections for Co element are measured for the first time.
keyword：K-shell ionization cross section；Electron impact；Thin target with thick substrate；Electron transport；
Research article 01 Feb 1996
Wang Ji-Cheng，Guo Guang-Hui，Zhao Jin-Hua，Yang Yong-Feng
This setup has very good timing response. Its rising time is just 8 ns. By using β-γ coincident technique, the intensities of γ lines following electron capture from neutrondeficient nuclides are strongly suppressed, but the detecting efficiency to the γ lines following 100% β- decay of neutron-rich mercury nuclides arrives highly to 60%.
keyword：4πΔEβ detector；Suppressing parameter η；Coincident detecting efficiency є；Electron capture decay；β decay；
Research article 01 Feb 1996
Wang Guang-Yu
By coupling the radiation transport equations and rate equations of X-ray laser, gain saturation process of several X-ray lasers in Ne-like Ge plasma is studied and simulated results are compared with calculation of the usual saturation equation. The great differences have been found in deep saturation stage. Simulated results also show the "burn-hole" in gain curves and decrease and increase in line width with increasing target length before and after saturation.
keyword：X-ray laser；Ne-like Ge；Radiation transport equation；Rate equation；Gain saturation；Stimulated emission；
Research article 01 Feb 1996
Li Wei-Yi，Cao Guo-Xian，Yu Hui-Xin，Zhang Rong-Jun
Tissue plasminogen activator (tPA), due to its stability in acidic solution, could be conveniently labeled with 99mTc by using stannous chloride method. More than 90% of biochemical activity was remained after the process of labeling and separation. The stability of 99mTc-tPA was studied at different time and different pH values, respectively. The study indicates that 99mTc-tPA would be a potential imaging agent for thrombus and tumor.
keyword：Labeling；99mTc；Tissue plasminogen activator；Imaging agents；Thrombus；Tumors；
Research article 01 Feb 1996
Li Wei-Tang，Li Zheng-Hui，Zhu Shi-Fu，Yin Shu-Jun，Zhao Bei-Jun，Chen Guan-Xiong，Peng Xiu-Feng，He Fu-Qing，Long Xian-Guan
Room temperature radiation detectors are fabricated from large HgI2 single crystals, in which, instead of temperature oscillation method (TOM), a modified vapor growth method is applied to grow the crystals in relatively stable temperature field. The crystals grown by the modified method show lower densities of dislocation (102~104cm-2), and the detectors fabricated from the crystals exhibit good energy resolution and very slight polarization.
keyword：Energy resolution；Polarization；HgI2 detectors；Crystal growth；Dislocation；
Research article 01 Feb 1996
Lu Wei
There is a high incidence of lung cancer in Gejiu area of Yunnan Province. Using method of SSNTD (solid state nuclear track detector), 469 data of radon in the indoor or soil have been obtained. There is 471.9 Bq•m-3 on an average in houses situated in geologic fault zone. None of ore of uranium or thorium has been found here. The migration of radon seems not "diffusion" but "suction effect".
keyword：Lung cancer；Radon；Migration；SSNTD；Fault zone；Suction；Yunnan province；
Research article 01 Feb 1996
Zhao De-Pin
The usual approach to internal conservative charges is used to obtain the conservation laws of angular-momentum in both Einstein gravity and gravitational anyons. The results are in complete agreement with those of references.
keyword：Global transformation；Internal charges；Conservation law of angular-momentum；
Research article 01 Feb 1996
Zhang Kun，Cao Jian-Hua
A 13 MeV deuteron beam from the 1.2 M cyclotron of Sichuan Union University has been used to determine the nitrogen depth distribution in seeds of wheat and rice on the basis of 14N(d, p)15N reaction. The feasibility to use the technique for selection purposes in plant breeding is discussed. For wheat and rice, 10 and 12 seeds (without husk) have been investigated, respectively.
keyword：Nuclear reactions；Nitrogen；Seeds of grain；
Research article 01 Feb 1996
Sha Yin，Shi Jian，Zhang Pei-Qun，Gu Ying-Mei，Zhu Jie-Qing，Li Xiao-Lin，Wang An-Pu，Yang Shu-Lan
Several methods for preparing samples of dispersed single aerosol particles used in scanning proton microprobe (SPM) analysis were tested. Many elements such as Al, Si, S, Cl, Ca, Ti, Cr, Mn, Fe, Ni, Cu and Zn in the groups of different single aerosol particles from the Capital Steel Plant area were analyzed by SPM. The distributions of elemental contents in the group of single particles were mapped with three dimensional contour and the isometric. A new approach to study the group of different single aerosol particles for air pollution is developed in the present work. The results are significant to assessing the environmental impact of the dispersed single aerosol particles.
keyword：Spatial distribution；Single aerosol particle；Air pollution；Scanning proton microprobe；
