Tuesday 24 November 2015

Preparation of Gold Target through Electron Vapor Deposition and 'Paras' the Rutherford Back Scattering Experimental setup @ IUAC

International Journal For Scientific Research & Development :: IJSRD

Author(s):
Sarvesh Kumar , Inter University Accelerator Center, Aruna Asaf Ali Marg, New Delhi.; Tulika Sharmay, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.); Pranav Bhardwaj, Department of Physics and Astrophysics, University of Delhi, New Delhi; Avnee Chauhan, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.); Shruti Kapoor, Amity Institute of Applied Sciences, Amity University, Noida, (U. P.)

Keywords:
Rutherford Back Scattering, Electron Vapor Deposition

Abstract:
Rutherford Backscattering Spectrometry (RBS) is a widely used method for the surface layer analysis of solids. Lord Ernest Rutherford first used the backscattering of alpha particles from a gold film in 1911 to determine the fine structure of the atom, resulting in the discovery of the atomic nucleus. RBS includes all types of elastic ion scattering with incident ion energies in the range 500 keV ¬ several MeV. Usually protons, 4He, and sometimes lithium ions are used as projectiles at backscattering angles of typically 150¬ 170¦. Different angles or different projectiles are used in special cases. Rutherford backscattering spectroscopy is employed to detect the impurity present in target material and to test the amount and type of impurity present in any target sample to be used in any experiment of atomic physics/ nuclear physics or of material science. The detection of these impurities before conduction of any experiment is essential as the presence of impurity in target sample may hamper the results of the experiments. Thus, although being a traditional concept the use of Rutherford backscattering spectroscopy still prevails. One requires a target material to learn the working principle of Rutherford backscattering spectroscopy. INTER UNIVERSITY ACCELERATOR CENTER (IUAC) provides the facility for fabrication of the target and its analysis. This paper includes the fabrication of gold target of thickness 300mm and its analysis using Rutherford backscattering spectroscopy.

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Monday 16 November 2015

All Color Detector Sensor AR001

IJSRD : International Journal for Scientific Research & Development

Author(s):

Aditya Kumar , DIT University Dehradun; Vivek Kumar, DIT University Dehradun; Sandeep Sharma, DIT University Dehradun; Vimal Kant Pandey, DIT University Dehradun

Keywords:

Color Detector Sensor, Color sensing, AR001

Abstract

The objective of the present paper is to explore an approach of constructing a simple, low cost colour sensor using filter model which defines all colours as an additive combination of the primary colours Red, Green and Blue. The sensor consists of low pass filter surrounded by all color and light source. The low pass filter and the amplifier are mounted in such a way so that the color intensity from the source get absorbed by low pass filter and its passes through amplifier circuits. Therefore the voltage drop across the amplifier is varied whenever the light of different intensities from the low pass filter falls upon it. According to the voltage drop we decide the color identity because we know that every color has own intensity that why its produce specific voltage drop. The experimental results show that the variation of the color intensity gives the color identity.

Preview:

1.INTRODUCTION:

Color sensing is one of the important subjects of optical sensors. Color sensors have a variety of applications including detection of environmental, biological, and chemical parameters and in future its also use in robot as a eye. Color detectionbased chemical sensing is mostly implemented with particular emphasis on colorimetric sensors because many parameters, like pH, concentration, and chemical gases can cause direct or indirect color changes in biological and chemical species.

Optical sensors usually have a non-linear relationship between the sensor’s response and the effect to be sensed or the measured. Due to the fact that optical sensors have highly sensitive and non-linear nature, an unexpected change in the measured may cause considerably changes and measurement errors in the sensor’s responses. Furthermore, it is expected that in modern sensor technology, a sensor has to adapt itself to the changing or unexpected conditions. In order to meet the expectations and to predict the sensor’s response more accurately, filter techniques become a useful tool for the design of intelligent color sensors.

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Monday 9 November 2015

IJSRD: Conference : “NATIONAL CONFERENCE ON ICT”

NATIONAL CONFERENCE ON ICT

Transforming ICT to IoT


In association with


IJSRD– International Journal for Scientific Research & Development

SAL Institute of Technology & Engineering Research, affiliated to the Gujarat Technological University, Ahmedabad., is organizing 1-day event named National Conference on ICT”  on 20th January 2016 in association with IJSRD.
The conference aims to provide an opportunity to teachers/mentors/ educators and students to acknowledge, celebrate and showcase research being carried out by students by enabling them to engage with the wider communities to exchange ideas and share intellectual activity through paper presentations sessions. The event shall feature research papers presentations by eminent educators and students from all over India in the field of ICT (Information and Communication Technologies) & IoT (Internet of Things).


Organised by

SAL Institute of Technology & Engineering Research
Opp, Science city, Sola Bhadaj Road,
Ahmedabad, Gujarat 380060
Website : www.sal.edu.in


Publication Partner

IJSRDInternational Journal  for Scientific Research & Development
Website: ijsrd.com