TY - JOUR
T1 - Synchronization of femtosecond UV-IR laser with electron beam for pulse radiolysis studies
AU - Saeki, Akinori
AU - Kozawa, Takahiro
AU - Kashiwagi, Shigeru
AU - Okamoto, Kazumasa
AU - Isoyama, Goro
AU - Yoshida, Yoichi
AU - Tagawa, Seiichi
PY - 2005/7/11
Y1 - 2005/7/11
N2 - A picosecond stroboscopic pulse radiolysis system which consists of a femtosecond laser and a picosecond L-band linear accelerator (linac) is demonstrated. A newly installed femtosecond laser system operated at 960 Hz can cover a wide region of wavelength ranging from <300 nm to 10 μm, although the upper limit is 1.7 μm to date because of the sensitivity of photodetectors. In order to achieve a high accuracy of synchronization between the laser and the linac, a new timing and synchronization circuit was developed. A double pulse detection method was applied for the new system, resulting in doubling of the improvement in signal-to-noise ratio. The time resolution and time jitter were estimated from the rise time of hydrated electrons at 600 nm, and the transient absorption kinetics of electrons in n-dodecane was measured at 1300 nm.
AB - A picosecond stroboscopic pulse radiolysis system which consists of a femtosecond laser and a picosecond L-band linear accelerator (linac) is demonstrated. A newly installed femtosecond laser system operated at 960 Hz can cover a wide region of wavelength ranging from <300 nm to 10 μm, although the upper limit is 1.7 μm to date because of the sensitivity of photodetectors. In order to achieve a high accuracy of synchronization between the laser and the linac, a new timing and synchronization circuit was developed. A double pulse detection method was applied for the new system, resulting in doubling of the improvement in signal-to-noise ratio. The time resolution and time jitter were estimated from the rise time of hydrated electrons at 600 nm, and the transient absorption kinetics of electrons in n-dodecane was measured at 1300 nm.
KW - Femtosecond laser
KW - Linear accelerator
KW - Radiation chemistry
KW - Stroboscopic pulse radiolysis
KW - Synchronization
KW - Transient absorption spectroscopy in infrared
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U2 - 10.1016/j.nima.2005.03.123
DO - 10.1016/j.nima.2005.03.123
M3 - Article
AN - SCOPUS:20744449929
SN - 0168-9002
VL - 546
SP - 627
EP - 633
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 3
ER -