Identification of pore size in porous SiO
                    <sub>2</sub>
                    thin film by positron annihilation

A new simple digital positron lifetime spectrometer has been developed. It includes a DRS4 waveform digitizing board and two scintillation detectors based on the XP2020Q photomultiplier tubes and LaBr3 scintillators. The DRS4 waveform digitizing can handle small pulses, down to few tens of millivolts, and its time scale linearity and stability are very good. The new system has reached a 206 ps time resolution, which is better than the conventional analog apparatus using the same detectors. These improvements make this spectrometer more simple and convenient in comparison with other spectrometers, and it can be applied to the other scintillation timing measurements with picosecond accuracy.

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Identification of pore size in porous SiO ₂ thin film by positron annihilation

Abstract: Identification of pore size in porous SiO 2 thin f ilm by positron annihilationWANG Qiao-Zhan( ) 1 MA Yan-Yun( ) 3 WANG Bao-Yi( ) 1;1)

Cited by 2 publications

References 14 publications

Positron age-momentum correlation studies of free volumes in toughened cyanate resin networks

Positron age-momentum correlation studies of free volumes in toughened cyanate resin networks

A new positron annihilation lifetime spectrometer based on DRS4 waveform digitizing board

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Identification of pore size in porous SiO 2 thin film by positron annihilation

Abstract: Identification of pore size in porous SiO 2 thin f ilm by positron annihilationWANG Qiao-Zhan( ) 1 MA Yan-Yun( ) 3 WANG Bao-Yi( ) 1;1)

Cited by 2 publications

References 14 publications

Positron age-momentum correlation studies of free volumes in toughened cyanate resin networks

Positron age-momentum correlation studies of free volumes in toughened cyanate resin networks

A new positron annihilation lifetime spectrometer based on DRS4 waveform digitizing board

Contact Info

Product

Resources

About

Identification of pore size in porous SiO ₂ thin film by positron annihilation