Dr.Raghu Yuvaraj

• Heading the overall activities- Course coordinator of medical Physics for BSc Optometry- University Member in Students Grievance cell- Member in Board of Studies- ISO, NAAC & IQAC coordinator- SPOC – MYCAMU – Students Mobile app- Head – Alumni cell- Placement coordinator- SPOC – Sulekha Business app, CollegeDheko.com

 Division Head-responsible to coordinate all academic activities

 Curriculum designer- How Stuff Work

 Stock Maintenance for General Physics lab

 Lab curriculum design for Medical Physics lab

 Member in Board of Studies

 Department coordinator-NAAC criterion-VI

 ISO coordinator and Internal Auditor

 Department SPOC – ARMS Web Portal

 Heading the overall activities of Physics

 Lab in Charge and Stock Maintenance for Physics lab and Optics lab

 Member in Board of Studies

 ISO Internal Auditor

 Department NAAC coordinator

 Coordinator for scholarship of SC/ST students

SPOC – Sulekha Business app-CollegeDheko.com

 Member in Research committee Drone design

 Responsible for tutoring under graduate department students of the following subjects:

 Heat and Thermodynamics, Optics, Nuclear Physics, Allied Physics

 Lab in charge and Stock Maintenance for allied physics lab and electronics lab

 Responsible for department library books

 Responsible for tutoring Allied Physics for under graduate allied department students

 Lab in charge and Stock Maintenance for allied physics lab

 Responsible for department library books

Work List:

• Review the phenomenon of quantum tunneling in metal junction when it was both normal and superconducting state.
• Analyze the inelastic tunneling through superconductor-insulator–normal metal junction.
• Study the basic electromagnetic excitations sustained by an insulator.
• Quantum Tunneling in metal junction when it was both normal and superconducting state is reviewed.
• Analysis of inelastic tunneling through superconductor-insulator–normal metal junction is done to study the basic electromagnetic excitations sustained by an insulator.

Work:

• Designing and constructing an Electronic Circuit with a Chaos System
• Measuring and comparing the output of the Chaos System with numerically calculated data
• Producing a Chaos Attractor using the Electronic Circuit and comparing the output with a simulated output from the computer using QBASIC language
• Presenting the corresponding screen layout from the simulated output from the computer using QBASIC language

Impact:

• Produced Chaos Attractor from electronic circuit
• Measured and compared the output of the Chaos System
• Presented simulated output from computer using QBASIC language
• Provided corresponding screen layout

Work List:

• Gather samples of building materials from Tiruvannamalai district, Tamilnadu
• Analyze samples for 226Ra, 232Th and 40K activity concentration using gamma ray spectrometry
• Compute statistical data such as mean, median, and confidence intervals of the results
• Assess radiological hazards due to external exposure in dwellings
• Document and analyze findings

Impact:

• Assessed the activity concentration of 226Ra, 232Th and 40K in commonly used building materials from Tiruvannamalai district, Tamilnadu
• Assessed the radiological hazards due to external exposure in dwellings using gamma ray spectrometry.

 Received a Best paper–II prize award at National seminar on Frontiers of spectro physics, SCSVMV University, Kanchipuram on 19-20 December 2013.

 Received a Best paper award at Nutech-2014, Aravindar Engineering College, Vanur in collaboration with BHAVINI on 4 April 2014.

High efficient and environment friendly one-pot in situ microwave irradiation method was implemented towards the preparation of porous reduced graphene oxide/WO3 (rGOW) nanocomposites for the first time.

Adapting the solution growth method, L-cysteine cadmium chloride (LCC) crystal was synthesized, and by using a single-crystal X-ray diffraction analysis, orthorhombic system was confirmed. From the powder XRD pattern, the crystalline nature of LCC crystal was revealed.

The activity concentration of 226Ra, 232Th and 40K were determined in clay samples collected from Tiruvannamalai district, Tamilnadu using gamma ray spectrometry.

If we want to assess the impact of radiation exposure, it is common practice to present the values of excess lifetime cancer risk in a population exposed to a given dose. The present investigation is involved in calculating such excess lifetime risks and related risk projection methods.

The radionuclide activity data of riverbed sand samples collected from 15 different locations along the banks of Thenpennai River flows within Tiruvannamalai district of Tamilnadu, India were implemented to evaluate the radio- logical safety of the geographical area.

One-hundred-fifty-one samples of six types of building materials were collected from different locations of the Tiruvannamalai District, Tamilnadu, and were analyzed using a gamma ray spectroscopy system.

The activity concentration of Ra, Th and K in brick samples used in Tiruvannamalai District of Tamilnadu has been determined using gamma ray spectrometry. The activity concentration ranges from BDL to 16.02 Bq kg, 17.86 to 120.19 Bq kg, 240.09 to 481.35 Bq kg for Ra, Th, and K, respectively.

Average activity for all the building materials less than world average value

Radioactivity in building materials due to concentration of 226Ra and 232Th

Log normal distribution patterns of radioactive variables are discussed.

Statistical tools applied to radioactive variables

Due to increased global demand for clay, the present work involves the use of gamma ray spectrometry for the measurement of concentrations of natural radionuclides in clay samples.

Using γ spectrometry, the concentration of the naturally occurring radionuclides 226Ra, 232Th and 40K has been measured in soil, sand, cement, clay and bricks, which are used as building materials in Tiruvannamalai, Tamilnadu, India.