Lyoluminescence Dosimetry of L-Proline Incorporated of Sensitizer Dependence on the Temperature and pH of Solution

To increase the sensitivity of dosimeter, it has to improve the properties that are required to increase its sensitivity. It was proven that the dependence of lyoluminscence (LL) of irradiated amino acid (L-prolin) incorporated with chemiluminscence reagent (luciginine) on the pH and temperature of the solution. LL means the emission of light from dissolved material in a suitable solvent, which is previously exposed to ionizing radiation. When the incorporated phosphor irradiated to gamma rays an electronically excited species are trapped within the solid matrix, this extra energy will be emitted in the form of light ( 420-500nm), on dissolving the material in water in this test. The LL intensity increases with increasing pH of the solution. The best reproducible and optimum LL intensity is at (pH=8.5-9) of the solution, However, LL intensity will be decreased when the PH is higher than 12. In this value of pH the stability of free radicals is optimum. The same is found for solvent temperature dependence, the optimum LL intensity is at 45-48 oC. LL intensity will increase up to 70 oC,it was found that the total glow increased because of increasing the self-glow of luciginine , but LL intensity will decrease because of dissociation of phisphore structure. In addition to the self-glow of the sanitizer will increase too at temperate up to 70 oC , however, that will cause self-glow to the dosimeter material.

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From free radicals to electronically excited species

Free Radical Biology and Medicine ◽

10.1016/0891-5849(95)00002-f ◽

1995 ◽

Vol 19 (1) ◽

pp. 103-114 ◽

Cited By ~ 64

Author(s):

Giuseppe Cilento ◽

Waldemar Adam

Keyword(s):

Free Radicals ◽

Excited Species ◽

Electronically Excited

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Chemiluminescence of electronically excited species during the self-ignition of acetylene behind reflected shock waves

Acta Astronautica ◽

10.1016/j.actaastro.2020.09.048 ◽

2020 ◽

Author(s):

A.M. Tereza ◽

S.P. Medvedev ◽

V.N. Smirnov

Keyword(s):

Shock Waves ◽

The Self ◽

Reflected Shock ◽

Excited Species ◽

Electronically Excited

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The multiple self-aspects framework: How self-concept representation influences the stability of the self

PsycEXTRA Dataset ◽

10.1037/e634112013-194 ◽

2011 ◽

Author(s):

Allen R. McConnell

Keyword(s):

The Self ◽

Self Concept ◽

Concept Representation ◽

The Stability

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Self-assembling behaviour of a modified aromatic amino acid in competitive medium

Soft Matter ◽

10.1039/d0sm00584c ◽

2020 ◽

Vol 16 (28) ◽

pp. 6599-6607 ◽

Cited By ~ 1

Author(s):

Pijush Singh ◽

Souvik Misra ◽

Nayim Sepay ◽

Sanjoy Mondal ◽

Debes Ray ◽

...

Keyword(s):

Amino Acid ◽

Self Assembly ◽

Aromatic Amino Acid ◽

Photophysical Properties ◽

Solvent Mixture ◽

The Self ◽

Solvent Ratio ◽

Self Assembling

The self-assembly and photophysical properties of 4-nitrophenylalanine (4NP) are changed with the alteration of solvent and final self-assembly state of 4NP in competitive solvent mixture and are dictated by the solvent ratio.

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170. Free radicals and radical stability. Part VIII. The stability of formates and the reduction of triarylcarbinols

Journal of the Chemical Society (Resumed) ◽

10.1039/jr9400000874 ◽

1940 ◽

pp. 874 ◽

Cited By ~ 1

Author(s):

Sydney T. Bowden ◽

D. Leslie Clarke ◽

William E. Harris

Keyword(s):

Free Radicals ◽

The Stability

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On a Possible Origin of the Gamma-ray Excess around the Galactic Center

Symmetry ◽

10.3390/sym13081432 ◽

2021 ◽

Vol 13 (8) ◽

pp. 1432

Author(s):

Dmitry O. Chernyshov ◽

Andrei E. Egorov ◽

Vladimir A. Dogiel ◽

Alexei V. Ivlev

Keyword(s):

Dark Matter ◽

Gamma Rays ◽

Molecular Clouds ◽

Alternative Explanation ◽

Gamma Ray ◽

Galactic Center ◽

The Self ◽

Large Area ◽

Mhd Turbulence ◽

The Standard Model

Recent observations of gamma rays with the Fermi Large Area Telescope (LAT) in the direction of the inner galaxy revealed a mysterious excess of GeV. Its intensity is significantly above predictions of the standard model of cosmic rays (CRs) generation and propagation with a peak in the spectrum around a few GeV. Popular interpretations of this excess are that it is due to either spherically distributed annihilating dark matter (DM) or an abnormal population of millisecond pulsars. We suggest an alternative explanation of the excess through the CR interactions with molecular clouds in the Galactic Center (GC) region. We assumed that the excess could be imitated by the emission of molecular clouds with depleted density of CRs with energies below ∼10 GeV inside. A novelty of our work is in detailed elaboration of the depletion mechanism of CRs with the mentioned energies through the “barrier” near the cloud edge formed by the self-excited MHD turbulence. This depletion of CRs inside the clouds may be a reason for the deficit of gamma rays from the Central Molecular Zone (CMZ) at energies below a few GeV. This in turn changes the ratio between various emission components at those energies and may potentially absorb the GeV excess by a simple renormalization of key components.

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Unimolecular decay paths of electronically excited species. VI. The Ã2E state of NH+3

The Journal of Chemical Physics ◽

10.1063/1.448848 ◽

1985 ◽

Vol 82 (9) ◽

pp. 4073-4075 ◽

Cited By ~ 12

Author(s):

C. Krier ◽

M. Th. Praet ◽

J. C. Lorquet

Keyword(s):

Excited Species ◽

Electronically Excited

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Research on the Performances of Self-Oscillation Linear Actuator and its Compensation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.433-440.7375 ◽

2012 ◽

Vol 433-440 ◽

pp. 7375-7380

Author(s):

Fan Lin ◽

Li Qiao ◽

Yu Wang ◽

Hui Liu

Keyword(s):

Nonlinear Model ◽

Servo System ◽

The Self ◽

Linear Actuator ◽

Phase Lag ◽

Phase Lead ◽

The Stability ◽

Lag Compensation

Base on constitution of the self-oscillation linear actuator which is a servo system for a gun launched missile, a nonlinear model was built. Though the experiment, the model is correct. This paper studied the stability, the self-oscillation's frequency and gain on this kind of servo system. On comparing phase-lead compensation and phase-lag compensation, the later is more suitable for this system. After testing, the lag regulator is designed for the system.

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AN INTERACTIONAL APPROACH TO ATTRIBUTIONAL DIMENSIONS IN DYSPHORIA

Social Behavior and Personality An International Journal ◽

10.2224/sbp.1990.18.2.267 ◽

1990 ◽

Vol 18 (2) ◽

pp. 267-277 ◽

Cited By ~ 1

Author(s):

Janet E. Eschen ◽

David S. Glenwick

Keyword(s):

Attributional Style ◽

The Self ◽

Regression Analyses ◽

Self Blame ◽

Attributional Style Questionnaire ◽

Standard Manner ◽

Stability Dimension ◽

The Stability ◽

The Relationship

To investigate the possible contributions to dysphoria of interactions among attributional dimensions, 105 freshmen and sophomores were administered the Attributional Style Questionnaire and the Beck Depression Inventory. Analyses examined the relationship to dysphoria of (a) the traditional composite score; (b) multiple regression analyses including interactions among the various dimensions; and (c) indices of behavioral self-blame, characterological self-blame, and external blame. The results provided modest support for the specific hypothesized interactional model and, to a large extent, appeared to support the validity of the standard manner in which dysphoric attributional style is viewed. Refinements of the traditional model are suggested, involving the self-blame construct, the possible role of the stability dimension, and the relationship between controllability and positive event attributions.

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