scholarly journals Radially restricted linear energy transfer for high-energy protons: A new analytical approach

1994 ◽  
Vol 33 (3) ◽  
pp. 181-187 ◽  
Author(s):  
J. Chen ◽  
A. M. Kellerer ◽  
H. H. Rossi
1969 ◽  
Vol 24 (12) ◽  
pp. 1633-1640 ◽  
Author(s):  
F. Stähler ◽  
F. Zywietz ◽  
W. Ewert ◽  
H. A. Künkel

The Relative Biological Efficiency (RBE) of 6-GeV-bremsstrahlung on 3-days-old seedlings of Vicia faba was investigated with the Deutsches ElektronenSynchrotron. Dosimetry was carried out by means of the butanol-sensitized FeII/FeIII-reaction. In a Lucite-phantom we observed an increase of the RBE from 0,65 at the surface to values of about 2 at a depth of 40 cm. As changes of that order of magnitude are doubtless beyond the limits of the maximum experimental error we suppose that production of heavy particles by nuclear reactions such as (γ, n) or (γ, p) in deeper layers of matter might cause an increase of the linear energy transfer of the beam.


Author(s):  
А.С. Пузанов ◽  
В.В. Бибикова ◽  
И.Ю. Забавичев ◽  
Е.С. Оболенская ◽  
Е.А. Тарасова ◽  
...  

A theoretical analysis of transient ionization processes occurring in a low-barrier GaAs Mott diode under the influence of space radiation high energy charged particles and simulating pulsed laser radiation is carried out. The diode response to the As+ ion action with an energy of 200 MeV, corresponding to a linear energy transfer of 26 MeV cm2/mg, is compared with the response to the femtosecond pulses optical radiation action of various durations (10-1000 fs) and photon energies exceeding the GaAs band gap.


2020 ◽  
Vol 40 (11) ◽  
pp. 6429-6435
Author(s):  
SHINNOSUKE MATSUMOTO ◽  
SUNG HYUN LEE ◽  
REIKO IMAI ◽  
TAKU INANIWA ◽  
NARUHIRO MATSUFUJI ◽  
...  

2021 ◽  
Vol 7 (9) ◽  
pp. eabe2209
Author(s):  
S. Lamon ◽  
Y. Wu ◽  
Q. Zhang ◽  
X. Liu ◽  
M. Gu

Nanoscale optical writing using far-field super-resolution methods provides an unprecedented approach for high-capacity data storage. However, current nanoscale optical writing methods typically rely on photoinitiation and photoinhibition with high beam intensity, high energy consumption, and short device life span. We demonstrate a simple and broadly applicable method based on resonance energy transfer from lanthanide-doped upconversion nanoparticles to graphene oxide for nanoscale optical writing. The transfer of high-energy quanta from upconversion nanoparticles induces a localized chemical reduction in graphene oxide flakes for optical writing, with a lateral feature size of ~50 nm (1/20th of the wavelength) under an inhibition intensity of 11.25 MW cm−2. Upconversion resonance energy transfer may enable next-generation optical data storage with high capacity and low energy consumption, while offering a powerful tool for energy-efficient nanofabrication of flexible electronic devices.


2011 ◽  
Vol 508 (4-6) ◽  
pp. 224-230 ◽  
Author(s):  
S. Sanguanmith ◽  
Y. Muroya ◽  
J. Meesungnoen ◽  
M. Lin ◽  
Y. Katsumura ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document