Radial and Longitudinal Dependence of Solar 4–13 MeV and 27–37 MeV Proton Peak Intensities and Fluences:HeliosandIMP 8Observations

2006 ◽  
Vol 653 (2) ◽  
pp. 1531-1544 ◽  
Author(s):  
D. Lario ◽  
M.‐B. Kallenrode ◽  
R. B. Decker ◽  
E. C. Roelof ◽  
S. M. Krimigis ◽  
...  
Keyword(s):  
Proton Peak

Prediction of Solar Proton Peak Fluxes from Solar Electromagnetic Signatures

1993 ◽  
Author(s):  
Stuart L. Huston ◽  
George A. Kuck
Keyword(s):  
Solar Proton ◽  
Proton Peak

scholarly journals Early skin reaction following 250MeV proton peak irradiation.

1987 ◽  
Vol 28 (2) ◽  
pp. 150-155 ◽  
Author(s):  
HIDEO TATSUZAKI ◽  
TETSUO INADA ◽  
TAKESHI SHIMIZU ◽  
TAKURO ARIMOTO ◽  
SHINICHIRO SATOH ◽  
...  
Keyword(s):  
Skin Reaction ◽  
Proton Peak

Multi-energy analysis of SPREAdFAST proton events

2021 ◽  
Author(s):  
Rositsa Miteva ◽  
Kamen Kozarev ◽  
Mohamed Nedal
Keyword(s):  
Comparative Analysis ◽  
Energy Analysis ◽  
Historical Event ◽  
Energy Bands ◽  
Event Selection ◽  
Available Energy ◽  
Solar Cycle 24 ◽  
Proton Peak ◽  
Cycle 24 ◽  
Project Data

<p>We present the procedure of event selection, data analysis and interpretation of solar energetic protons during the last solar cycle 24 for the needs of the SPREAdFAST project. Data from SOHO/ERNE and ACE/EPAM instruments have been analysed for nearly 100 proton events in the available energy bands. The energy dependence of the proton peak intensities and background spectra is completed. The energy range from a few to 130 MeV has been covered. Protons from the SPREAdFAST historical event list have been selected for a detailed comparative analysis. The validation between the observed and simulated proton events is presented and discussed.</p>

Response Functions of a Cs2LiYCl6 Scintillator to Neutron and Gamma Radiation

2013 ◽  
Author(s):  
Nafisah Khan ◽  
Rachid Machrafi ◽  
Vitali Kovaltchouk
Keyword(s):  
Gamma Rays ◽  
Neutron Detection ◽  
Fast Neutrons ◽  
Incident Neutron ◽  
Neutron Spectrometry ◽  
Extended Code ◽  
Fast Neutron Detection ◽  
Proton Peak ◽  
No Sensor ◽  
Thermal And Fast Neutrons

A new scintillator, CLYC, has been investigated for possible use in neutron spectrometry. This sensor provides neutron detection for both thermal and fast neutrons from the reactions 6Li(n,α) and 35Cl(n,p), respectively. This work primarily focuses on the detection of fast neutrons since there is currently no sensor that can accurately and efficiently provide information about their incident neutron energy. Conventional methods of fast neutron detection have been based on utilizing materials that use the elastic scattering process of neutrons on 1H to create recoil protons or by thermalizing and capturing these neutrons at thermal energies. Both approaches have drawbacks and are complex in deriving the energy spectrum through the unfolding process. The CLYC scintillator uses a distinct proton peak, whereby the position on the spectrum is proportional to the energy of the incident neutron. The response function of this detector has been simulated using Monte Carlo N-Particle eXtended code (MCNPX) for gamma-rays and neutrons of different energies. The obtained data has been discussed and analyzed.

Nuclear magnetic resonance and ultraviolet studies of the effect of p2H on reduced nicotinamide–adenine dinucleotide

1970 ◽  
Vol 48 (9) ◽  
pp. 947-952 ◽  
Author(s):  
P. R. Griffith ◽  
M. J. Nye ◽  
J. C. Alexander
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Spectrum ◽  
Nicotinamide Adenine Dinucleotide ◽  
Resonance Spectrum ◽  
Chemical Shifts ◽  
Ultraviolet Spectra ◽  
Proton Peak ◽  
Reduced Nicotinamide Adenine Dinucleotide ◽  
Nuclear Magnetic

The effect of p2H on the chemical shifts of two adenine protons and one reduced nicotinamide proton of β-NADH have been examined. The adenine protons had a single pK at a p2H 3.85. The reduced nicotinamide proton showed no pK in the range p2H 3.00 to p2H 7.00. At low p2H values a new peak appeared in the nuclear magnetic resonance spectrum 0.31 p.p.m. downfield from the nicotinamide C-2 proton of β-NADH, and the nicotinamide C-2 proton peak gradually disappeared. It is suggested that this new peak is responsible for some of the anomalies in published results. The alterations in the ultraviolet spectra also indicate a change in the structure within the reduced nicotinamide moiety of β-NADH at low p2H values.

Nuclear Magnetic Resonance Spectroscopic Analysis of Gossypol and Its Analogs in Cotton Flower Buds (Gossypium)

1978 ◽  
Vol 61 (1) ◽  
pp. 146-149
Author(s):  
Anthony C Waiss ◽  
Bock G Chan ◽  
Mabry Benson ◽  
Maurice J Lukefahr
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Spectroscopic Analysis ◽  
Internal Standard ◽  
Aromatic Proton ◽  
Flower Bud ◽  
Chemical Structures ◽  
Magnetic Resonance Spectroscopic Analysis ◽  
Proton Peak ◽  
Nuclear Magnetic

Abstract A specific nuclear magnetic resonance (NMR) method has been developed for determining gossypol and its analogs in the cotton flower bud. Gossypol and its related analogs, some of whose chemical structures have not yet been determined, can be identified by the distinctive NMR absorption of the aldehydic protons between 10.0 and 11.3 ppm. These compounds are quantitatively estimated by comparing the areas of the aldehydic proton absorptions with the aromatic proton peak (6.82 ppm) from p-dimethoxybenzene internal standard.

Sign in / Sign up

Export Citation Format

Share Document