scholarly journals Two-pole Caustic Model for High-energy Radiation from Pulsars — Polarization

2004 ◽  
Vol 218 ◽  
pp. 373-374
Author(s):  
Jarosław Dyks ◽  
Alice K. Harding ◽  
Bronisław Rudak
Keyword(s):  
High Energy ◽  
Light Curves ◽  
Optical Data ◽  
Crab Pulsar ◽  
Gap Model ◽  
Polar Cap ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
Cap Model

We present high-energy light curves and polarization properties of pulsars calculated within the recently proposed two-pole caustic model. The results are compared with the optical data for the Crab pulsar and with predictions of other high-energy pulsar models: the polar cap model, and the outer gap model.

HINTS ON PULSAR ELECTROMAGNETIC ENERGY LOSSES FROM COSMIC-RAY POSITRON OBSERVATIONS

2005 ◽  
Vol 20 (29) ◽  
pp. 6735-6738 ◽  
Author(s):  
CATIA GRIMANI
Keyword(s):  
Gamma Ray ◽  
Cosmic Ray ◽  
High Energy ◽  
Electromagnetic Energy ◽  
Energy Losses ◽  
Gap Model ◽  
Polar Cap ◽  
Preliminary Results ◽  
Positron Flux ◽  
Cap Model

We present preliminary results of the estimate of isolated pulsar contribution to the positron and electron interstellar fluxes when a polar cap model is assumed. Pulsars of all ages outside their host remnants have been considered. Cosmic-ray positron observations above a few GeV seem to indicate that an outer gap model is favoured over a polar cap model when the contribution of young pulsars only is taken into account. Here we show that pulsars with ages ranging between 10 kyr and 600 kyr, escaped from their remnants, give a contribution to the interstellar positron flux larger than that proposed in literature for the whole sample of pulsars younger than 10 kyr. Consequently, this result also indicates that outer gap electromagnetic energy losses overcome those at the polar cap. Future, low error e+/(e+ + e-) ratio observations as well as high energy pulsed gamma-ray measurements will allow us to verify this possibility.

scholarly journals Modelling X-ray and Gamma-ray Emission from Pulsars

2003 ◽  
Vol 214 ◽  
pp. 177-180
Author(s):  
B. Rudak ◽  
J. Dyks
Keyword(s):  
Space Charge ◽  
Gamma Ray ◽  
High Energy ◽  
Energy Spectra ◽  
Polar Cap ◽  
Unique Case ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
X Ray ◽  
Γ Ray

Lightcurves and broadband energy spectra of the brightest X/γ-ray sources among the rotation powered pulsars exhibit unexpected richness of features, making each object almost a unique case. This contribution presents how our models of high-energy radiation within the framework of SCLF (space charge limited flow) polar-cap scenarios tackle with some of these challenges.

scholarly journals Challenges and Opportunities for CsPbBr3 Perovskites in Low- and High-Energy Radiation Detection

2021 ◽  
pp. 1290-1314
Author(s):  
Lotte Clinckemalie ◽  
Donato Valli ◽  
Maarten B. J. Roeffaers ◽  
Johan Hofkens ◽  
Bapi Pradhan ◽  
...  
Keyword(s):  
Radiation Detection ◽  
High Energy ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
Challenges And Opportunities

Ultrasmall Gd@Cdots as a Radiosensitizing Agent for Non-Small Cell Lung Cancer

Nanoscale ◽  
2021 ◽  
Author(s):  
Chaebin Lee ◽  
Xiangji Liu ◽  
Weizhong Zhang ◽  
M. A. Duncan ◽  
Fangchao Jiang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cross Section ◽  
Cell Lung Cancer ◽  
High Energy ◽  
Small Cell ◽  
Small Cell Lung ◽  
High Energy Radiation ◽  
Energy Radiation

High-Z nanoparticles (HZNPs) afford high cross-section for high energy radiation and have attracted wide attention as a novel type of radiosensizers. However, conventional HZNPs are often associated with issues such...

scholarly journals Recent advances in radiation detection technologies enabled by metal-halide perovskites

2021 ◽  
Author(s):  
Tiebin Yang ◽  
Feng Li ◽  
Rongkun Zheng
Keyword(s):  
Gamma Rays ◽  
Performance Optimization ◽  
Radiation Detection ◽  
High Energy ◽  
Device Performance ◽  
High Energy Radiation ◽  
Energy Radiation ◽  
Halide Perovskites ◽  
Alpha Beta ◽  
Detection Technologies

Perovskite halides hold great potential for high-energy radiation detection. Recent advancements in detecting alpha-, beta-, X-, and gamma-rays by perovskite halides are reviewed and an outlook on the device performance optimization is provided.

Sign in / Sign up

Export Citation Format

Share Document