Impact Parameter Dependent X Ray Investigations in Heavy Ion Heavy Atom Collisions

Author(s):
Sarvesh Kumar , Inter University Accelerator Center, Aruna Asaf Ali Marg, New Delhi; Kajol Chakraborty, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.); Lakshmi Dagar, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.); Punita Verma, Kalindi College, University of Delhi, New Delhi

Keywords:
Heavy Atom Collisions, X Ray Investigations

Abstract:
The discovery of x-rays in 1895 marked the beginning of quantitative studies of atomic collisions. These investigations have made important contributions in formulation of modern concepts and theory of atomic physics. It is well known that x-rays emitted during heavy-ion collisions stem from the innermost shells of a quasi-molecule formed during the collision. These x-rays and impact parameter dependence of their emission probability holds crucial information about molecular orbital x-ray emission or charge exchange during interaction with solid targets. These super heavy quasi-molecules can be approached in relatively slow heavy ion-atom collisions which are slow compared to the orbital velocity of innermost electrons of concern. In order to probe the inner shell levels, vacancies have to be provided there. Since the vacancy production probability is primarily determined by electron emission into final states at the Fermi surface of the united atom, the energy transfer is essentially given by the binding energy of the bound state considered. In our investigations it has been calculated that to achieve the above desired system, an impact parameter range of (0.016-0-.023) a.u. is required. The experimental work has been planned to be done at Inter University Accelerator Center, India. 127 I-ions will be bombarded on heavy solid targets of 53I, 79Au and 83Bi. Targets of different thickness will be used to extrapolate to near “zero target thickness”‚(thinnest to 250 ¼g/ cm2) which are approximately the conditions under single collision conditions. The characteristic x-rays from the collision partners as well as MO x-rays will be detected by available x-ray detectors (a Si (Li) and a low energy Ge detector) to cover the entire energy range of K and L x-rays of the collision partners. For measurement of recoils at backward angles SBD/ (gas or annular) proportional counter will be used. A coincidence will be set up between the backward angle particle detectors and the x-ray to extract the impact parameter dependency of x-ray emission. Experimental data will then be compared with the data from correlation diagrams drawn on the basis of Self Consistent Field-Dirac Fock Slater (SCF-DFS) calculations for these systems for interpretation. Such a type of comparison will give a concrete idea about the couplings of the inner shells during such a slow ion-atom collision. A part of the investigations were presented as M.Sc. dissertation work of the second author.

I. AIM OF THE EXPERIMENT
The purpose of planning an impact parameter dependent ion atom collision experiment was to study the dependency of impact parameter on x-rays emitted during heavy ion heavy atom collision. This dependency holds crucial information about the inner shell couplings and hence vacancy transfer in a quasi-molecule (atomic energy levels of projectile and target overlap and hence the system behaves as a united atomic system) during a slow ion-atom collision. A detailed literature survey of similar experiments done in the past across the globe showed that for studying the above mentioned collisions, an impact parameter range of (0.016-0.023) atomic units was required. Thus a suitable experimental set up has been planned keeping the desired impact parameter range in mind at Inter University Accelerator Centre (IUAC). To examine the impact parameter of scattered projectile and emitted x-rays in coincidence (observing the scattered projectile and x-rays emitted from the target simultaneously) a particle detector (parallel plate avalanche counter available at IUAC) will be used to detect the scatteredprojectile and Low energy germanium detectors (LeGe) will be used to detect the x-rays. As a part of pre-experimental preparations a detailed theoretical analysis was done for the planned experimental set up. Correlation diagrams for the chosen projectile target combinations have been drawn which will be used to analyze the results after performing the experiment.
After performing the experiment we would be able to get a concrete idea about how superheavy systems (combined atomic number of target and projectile should be greater than 130) behave under the conditions of single ion-atom collisions.

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Enrichment of CNG in Gasoline Blends- A Technical Review #ijsrd

IJSRD Leading E-Journal of India Found Good Research Article.

Paper Title : Enrichment of CNG in Gasoline Blends- A Technical Review

Author Name : Ritesh Kumar Ranjan, Vikas Rai, Prof. Vipul R Bhatt, Prof. R J Jani

College Name: L. D. College of Engineering

Area of Research: Mechanical Engineering

Abstract — Pollution from the petroleum oil increases day by day in terms of CO2, CO, NOX, PM and many other gases and particles. Price difference and economy leads people toward the use of alternative fuels. To overcome this problem Tri-fuel is the best suitable fuel for the IC engine because of its clean emission characteristics. The present study focused on non-petroleum renewable and nonpolluting fuels to be used for I.C engines. The tri-fuel is assortment of petrol, butanol blend and CNG gas. It is found that power produced by the Tri-fuelled engine is more and lower NOx emissions compare to Gasoline engine because of the high volumetric efficiency, high compression ratio. Key words: CNG Gas, I.C Engines, Gasoline Blend

Key words: CNG Gas, I.C Engines, Gasoline Blend

For More Details about this paper visit http://www.ijsrd.com/Article.php?manuscript=IJSRDV3I2103

#IJSRD IMAGE PROCESSING CALL FOR PAPER : Special Issue

Best 25 papers will be published online.Participate in this special issue and get a chance to win the Best Paper Award for Image Processing. Also other authors will have special prizes to be won.

Submit Special Issue Manuscript Online

Last Date For Paper Submission of Special Issue : 25th August 2015

ijsrd.com

image processing ijsrd call for paper

What is Image Processing?

Image processing is a method to convert an image into digital form and perform some operations on it, in order to get an enhanced image or to extract some useful information from it. It is a type of signal dispensation in which input is image, like video frame or photograph and output may be image or characteristics associated with that image. Usually Image Processing system includes treating images as two dimensional signals while applying already set signal processing methods to them.

It is among rapidly growing technologies today, with its applications in various aspects of a business. Image Processing forms core research area within engineering and computer science disciplines too.Image processing usually refers to digital image processing, but optical and analog image processing also are possible.

Analog or visual techniques of image processing can be used for the hard copies like printouts and photographs. Image analysts use various fundamentals of interpretation while using these visual techniques. The image processing is not just confined to area that has to be studied but on knowledge of analyst. Association is another important tool in image processing through visual techniques. So analysts apply a combination of personal knowledge and collateral data to image processing.
Digital Processing techniques help in manipulation of the digital images by using computers. As raw data from imaging sensors from satellite platform contains deficiencies. To get over such flaws and to get originality of information, it has to undergo various phases of processing. The three general phases that all types of data have to undergo while using digital technique are Pre- processing, enhancement and display, information extraction.
If you have worked on any part of image processing prepare a research paper and submit to us

Image processing basically includes the following three steps.

Importing the image with optical scanner or by digital photography.The acquisition of images (producing the input image in the first place) is referred to as imaging.
Analyzing and manipulating the image which includes data compression and image enhancement and spotting patterns that are not to human eyes like satellite photographs.
Output is the last stage in which result can be altered image or report that is based on image analysis.

Purpose of Image processing

The purpose of image processing is divided into various groups. They are:

Visualization – Observe the objects that are not visible.
Image sharpening and restoration – To create a better image.
Image retrieval – Seek for the image of interest.
Measurement of pattern – Measures various objects in an image.
Image Recognition – Distinguish the objects in an image.

Applications of Image processing

Image processing has been an important stream of Research for various fields. Some of the application areas of Image processing are….

Intelligent Transportation Systems – E.g. Automatic Number Plate Recognition, Traffic Sign Recognition

Remote Sensing –E.g.Imaging of earth surfaces using multi Spectral Scanners/Cameras, Techniques to interpret captured images etc.

Object Tracking – E.g. Automated Guided Vehicles, Motion based Tracking, Object Recognition
Defense surveillance – E.g. Analysis of Spatial Images, Object Distribution Pattern Analysis of Various wings of defense. Earth Imaging using UAV etc.

Biomedical Imaging & Analysis – E.g. Various Imaging using X- ray, Ultrasound, computer aided tomography (CT) etc. Disease Prediction using acquired images, Digital mammograms.etc.

Automatic Visual Inspection System – E.g.Automatic inspection of incandescent lamp filaments, Automatic surface inspection systems, Faulty component identification etc.

And many other applications…..

To contribute your research work in Image processing please prepare an article on it and submit to us.

#ijsrd ‘4D Printing’ Makes Shape-Shifting Structures

4d-printing-141218

Using a new technique known as 4D printing, researchers can print out dynamic 3D structures capable of changing their shapes over time.

Such 4D-printed items could one day be used in everything from medical implants to home appliances, scientists added.

Today’s 3D printing creates items from a wide variety of materials — plastic, ceramic, glass, metal, and even more unusual ingredients such as chocolate and living cells. The machines work by setting down layers of material just like ordinary printers lay down ink, except 3D printers can also deposit flat layers on top of each other to build 3D objects.

see more about :http://www.livescience.com/49185-4d-printing-shape-shifting-structures.html