Picosecond-pulse radiolysis studies to understand the primary processes in radiolysis
نویسندگان
چکیده
منابع مشابه
The LEAF picosecond pulse radiolysis facility at Brookhaven National Laboratory
The BNL Laser-Electron Accelerator Facility (LEAF) uses a laser-pulsed photocathode, radio-frequency electron gun to generate ù7 ps pulses of 8.7 MeV electrons for pulse radiolysis experiments. The compact and operationally simple accelerator system includes synchronized laser pulses that can be used to probe or excite the electron-pulsed samples to examine the dynamics and reactivity of chemic...
متن کاملIsir Subpicosecond Pulse Radiolysis System
The highest time resolution of the pulse radiolysis had remained about 30 ps since the late 1960’s. To make clear the primary processes in the radiation chemistry and physics within 30 ps, we developed a stroboscopic pulse radiolysis system for the absorption spectroscopy with the time resolution of 2.0 ps (10-90% rise time). The time resolution of 2.0 ps was estimated from the time-dependent b...
متن کاملPulse radiolysis studies on superoxide reductase from Treponema pallidum.
Superoxide reductases (SORs) are small metalloenzymes, which catalyze reduction of O2*- to H2O2. The reaction of the enzyme from Treponema pallidum with superoxide was studied by pulse radiolysis methods. The first step is an extremely fast bi-molecular reaction of the ferrous center with O2, with a rate constant of 6 x 10 (8) M(-1) s(-1). A first intermediate is formed which is converted to a ...
متن کاملPulse radiolysis of aqueous thiocyanate solution.
The pulse radiolysis of N(2)O saturated aqueous solutions of KSCN was studied under neutral pH conditions. The observed optical absorption spectrum of the SCN(*) radical in solution is more complex than previously reported, but it is in good agreement with that measured in the gas phase. Kinetic traces at 330 and 472 nm corresponding to SCN(*) and (SCN)(2)(*-), respectively, were fit using a Mo...
متن کاملDevelopment of a New Picosecond Pulse Radiolysis System by Using Femtosecond Laser Synchronized with Picosecond Electron Beams
A new picosecond pulse radiolysis system for the absorption spectroscopy to observe ultra fast phenomena was developed. The system was composed of a 38 MeV picosecond electron L-band linac for the irradiation source and a femtosecond laser system for the analyzing light. The laser pulse was synchronized with the electron pulse by using the common radio frequency. The timeresolution of the syste...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Radiation Physics and Chemistry (1977)
سال: 1985
ISSN: 0146-5724
DOI: 10.1016/0146-5724(85)90197-9