Development of pulsed MeV positron beam line
نویسندگان
چکیده
منابع مشابه
Development of a high-efficiency pulsed slow positron beam for measurements with orthopositronium in vacuum
We have developed a high-efficiency pulsed slow positron beam for experiments with orthopositronium in vacuum. The new pulsing scheme is based on a double-gap coaxial buncher powered by an RF pulse of appropriate shape. The modulation of the positron velocity in the two gaps is used to adjust their time-of-flight to a target. This pulsing scheme allows to minimize non-linear aberrations in the ...
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Sub-picosecond electron pulses are desirable for generating femtosecond X-ray pulses. By numerical simulation, it has become clear that racetrack microtron (RTM) has unique features to produce very short electron bunches by itself. In addition, it has proved experimentally that RTM has beneficial characteristics to accelerate only an excellent quality beam in both emittance and energy spread. T...
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Shanghai Laser Electron Gamma Source, a γ-ray beam line of 10MeV order was proposed recently. The beam line is expected to generate γ-ray with maximum energy of 22MeV by backward Compton scattering between CO2 laser and electron in the 3.5GeV storage ring of future Shanghai Synchrotron Radiation Facility. The flux of non-collimated γ-ray can be 10 ∼ 10 s if a commercial CO2 laser of 100W order ...
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A pulsed, 20 kv electron beam is focussed upon a vapor-deposited thermocouple, and the resulting temperature vs. time response is studied. The experimental data show much scatter, but are consistent with the theoretical prediction that the characteristic thermal response time T is proportional to d , where d is the beam diameter at the thermocouple. From these data, for the soft-glass substrate...
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ژورنال
عنوان ژورنال: Radiation Physics and Chemistry
سال: 2001
ISSN: 0969-806X
DOI: 10.1016/s0969-806x(00)00399-6