Last updated: June 2004

 

 
Anil Kumar Chauhan

Present Occupation

Scientific Officer (Since 1992)

Employment Status

Permanent; Central Govt. Group A Gazetted

Fields of specialization

Crystal Growth, Characterization, Instrumentation and Software

Interest of work

Crystal Growth & Characterization

Office Address

Tech. Physics & Prototype Engg. Division

Bhabha Atomic Research Centre

Trombay Mumbai 400 085 INDIA

Tel. No. (Off.)

+91-22-25590439

E-mail

[email protected]

 

Educational :

Degree/Diploma

University/Institution

 

Subjects

 

B.Sc.

Agra University Agra

 

Phys, Chem, Maths

 

M.Sc.

Agra University Agra

 

Physics

 

BARC Orient. Course

B.A.R.C. Training School

 

Physics

 

M. Phil.

Meerut University Meerut

 

Physics

 

ADCSSA*

Maharashtra Board of Technical Education

 

Computer Softwares

 

Ph.D.

Mumbai University

 

Physics

 

* ADCSSA- Advance Diploma in Computer Software System Analysis and Applications

 

Programming Languages expert: Basic, Fortran, C, C++, Visual C++

OS: Linux, Unix, MS-Windows

 

Professional Achievements

DEVELOPMENT OF THE TECHNOLOGY FOR

1.       Growth of optical quality LiF, CaF2 and BaF2 single crystals upto 2 inch diameter.

2.       Growth of Bismuth Germanate single crystal up-to 40 mm diameter

3.       Growth of large single crystals of PbWO4 , BaWO4 and ZnWO4 scintillators

 

INSTRUMENTATION:

1.       Development of a fully automated diameter controlled Czochralski crystal growth system. All the driver modules, hardware design, fabrication, computer interfacing and software development was done.

2.       Automation of Vacuum Bridgman system for unattended operation.

3.       Design and development of various furnaces.

 

SOFTWARES:

  1. Development of software for fully automated, diameter controlled growth in Czochralski system.
  2. Development of software for auto analysis of activation energies from TSL glow curves

 

AWARDS:

Best research paper award of Indian Science Congress Association, for the paper ?Automation of a Czochralski Crystal Growth System?, at ninth national seminar on crystal growth, held at Anna University Chennai, Feb 2003

 

Experience of working on the following characterization instruments:

1.       Powder x-ray diffractometer

2.       x-ray Fluorescence Spectrometer

3.       Multi channel Analyzer for scintillation measurements

4.       Thermo Gravimetric and Differential Thermal Analysis

5.       Dilatometer

6.       Thermoluminescence Measurement

7.       UV-VIS Optical absorption Spectrophotometer

8.       Fluorescence measurement

 

LIST OF PUBLICATIONS (International Journals & Conferences)

 

1.       A.K. Chauhan, Investigations on the stoichiometry of lead tungstate melt, Crystal Growth & Design, 4/4 (2004) 755

2.       V. Panchal, N. Garg, A.K. Chauhan, Sangeeta, S.M. Sharma, High Pressure Phase transitions in BaWO4, Solid State Communications, 130 (2004) 203

3.       A.K. Chauhan, Development of a PC based automatic diameter controlled Czochralski Crystal growth system using a versatile algorithm, Crystal Growth & Design, 4/1(2004) 135

4.       A.K. Chauhan, Czochralski Growth and Radiation hardness of BaWO4 Crystals, J. Crystal Growth, 254(2003) 418

5.       S.C. Sabharwal, Sangeeta, A.K. Chauhan, Effect of lattice oxygen on optical absorption radiation hardness and thermally stimulated luminescence of BaF2 crystals, J. Crystal Growth 240(2002) 473

6.       S.C. Sabharwal, Sangeeta, D.G. Desai, S.C. Karandikar, A.K. Chauhan, A.K. Sangiri, K.S. Keswani, M.N. Ahuja, Effect of non-stoichiometry on some properties of lead tungstate crystals, J. Crystal Growth 169(1996) 304

7.       Sangeeta, A.K. Chauhan, S.C. Sabharwal, Thermoluminescence from quartz phase GeO2, Phys. Stat. sol. (a) 145(1994) K71

8.       A.K. Chauhan, Automation of a Czochralski Crystal Growth system, Proceedings of 9th National Seminar on Crystal Growth, Anna University, Chennai India (2003) LI-1.

9.       A.K. Chauhan, D.G. Desai, K.S. Keswani, Melt growth of Barium tungstate Crystal, Proc. of 9th National Seminar on Crystal Growth, Anna University, Chennai India (2003) M-1

10.   A.K. Chauhan, Sangeeta, S.C. Sabharwal, Effect of Seed Orientation of the growth of Zinc Tungstate Crystal, Proceedings of 32nd National Seminar on Crystallography, University of Jammu, India, Oct 2003, 154

11.   Babita Tiwari, A.K. Chauhan, Sangeeta, S.C. Sabharwal, Growth of Li2B4O7 crystals under high thermal gradient Proceedings of 32nd National Seminar on Crystallography, University of Jammu, India, Oct 2003, 152

12.   V.M. Panchal, A.K. Chauhan, Nandini Garg, Sangeeta and S.M. Sharma, High pressure phase Transformation in BaWO4 crystals, Proceedings of DAE solid state physics symposium Panjab University Chandigarh (India) 2002, ap24

13.   S.C. Karandikar, Sangeeta, D.G. Desai, A.K. Sangiri, K.S. Keswani, A.K. Chauhan, M.N. Ahuja S.C. Sabharwal, Growth and Characterization of PbWO4 Crystal, Proc. International nuclear physics symposium, BARC Mumbai (1995) I59

14.   Sangeeta, A.K. Sangiri, K.S. Keswani, S.C. Gadkari, D.G. Desai, A.K. Chauhan, S.C. Sabharwal, A new phase transition in BaB2O4, Proc. DAE Solid state physics symposium BARC Mumbai, India, 39C(1996) 356

15.   Sangeeta, S.C. Karandikar, A.K. Sangiri, A.K. Chauhan, D.G. Desai, K.S. Keswani and S.C. Sabharwal, Development of BGO Scintillator, International Nuclear Physics Symposium, BARC Mumbai, India, (1995) I60

16.   Sangeeta, A.K. Chauhan, S.C. Sabharwal, N. Suresh, S.C. Gupta, Shock induced amorphisation of q-GeO2 revealed by thermoluminescence, Proc. DAE Solid State Physics Symposium BARC Mumbai, India, 36C(1993) 454