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Nijalingappa Umakantha began his research activity in 1956 in the field of neutron physics at the Atomic Energy Establishment, Trombay
(now Bhabha Atomic Research Centre), India.
He was one of delegates from India
to Second United Nations International Conference on Peaceful Uses of Atomic Energy held at Geneva in the year 1959.
He did research in the field of neutron physics at Atomic Energy Research
Establishment, Harwell, U.K. From 1962 to his retirement in 1991 he was at the
Department of Physics Karnatak University, Dharwad, India.
His fields of
research were: interaction of radiation with matter, liquid scintillation,
development of new student laboratory experiments in nuclear physics, and
conceptual foundations of quantum mechanics and probability theory.
List
of Papers published by N.Umakantha
A) On foundations of Quantum Mechanics (without co-authors).
1) A Quantum Potential Approach to Wheeler Delayed-Choice Experiment, Nature, 319,699 (1986).
2) A Modified Young’s
Double-Slit Experiment and Einstein’s Einweg Point of View, Phys. Essays (Canada) 10,551-557
(1997)
3) Represental Approach to Quantum Mechanics. Phys. Essays,11,96-122 (1998)
4) Represental Analysis of
the Views of Einstein, Podolsky and Rosen on Quantum Mechanics, Phys. Essays, 13,97-108
(2000)
5) Represental Approach of
Bell’s Inequalities, Phys. Essays, 13, 640-644
(2000)
6) Einstein’s
Statistical Quantum Mechanics Il Nuovo Cimento, 124B, N, 135-154 (2009) [ Referee’s comment: “this interpretation would have
pleased Einstein”]
7) Experimental Evidence,
Satisfying the Einstein-Podolsky-Rosen Criterion for Physical Reality, for Einstein’s Einweg Point of View, Il Nuovo Cimento 124B, N, 1191-1196 (2009)
8) A New Approach to Quantum Statistical
Thermodynamics, Il Nuovo Cimento, 125B , N, 395-406 (2010)
9) A New Approach to
Classical Statistical Mechanics Jour. of Mod. Phys. 2, 1235-1241 (2011)
10) A New Approach to
Probability Theory with Reference to Statistics and Statistical Physics, Jour. of Mod. Phys., 7, 989-1003 (2016)
11) Three Levels of
Cognition: Particulars, Universals, and Representals, Open Journal of Philosophy, 6, 335-345 (2016)
B) Other Publications (Experimental
12 - 19 with co-authors; 20-43 with Ph.D. students)
Neutron
Physics
12) Slowing Down and Diffusion of Neutrons in Beryllium Oxide, Proc. Indian Acad. Sci. XLV, 214
(1957)
13) Temperature
Dependence of the Slowing Down and Diffusion Constants of Neutrons in Beryllium Oxide,ibid, XLV, 224 (1957)
14) Neutron Studies at Apsara, Proc. Second United Nations
International Conf. On Peaceful Uses of Atomic Energy, 13, 120 (1958)
15) Number of Neutrons Emitted per Fission
from Fast Fission of Uranium –238, ibid, 15, 364 (1958)
16) The Slowing Down of Neutrons in the Region
of 0.09 to 0.0388 ev in various
Moderators using Monochromatic Beam, ibid, 16, 319 (1958)
17) On the Design of Rotors for Neutron Velocity
Selection, A.E.R.E. Report R 2992, Harwell, England
(1959)
18) Neutron Small-Angle Scattering by Spin Waves
in Iron, Phys. Rev. Lett., 4, 452 (1960)
19) Inelastic Scattering
of Cold Neutron by Polycrystalline Beryllium Oxide in the Temperature Range
from 1000K to 10000K, Jour. Phys. Chem. Solids, 23,
1747 (1962)
Interaction
of Radiation with Matter
20) Comparison of Mass Absorption Coefficients of
Positive and Negative Beta Particles in Aluminium and Lead, Phys. Rev. B1, 1632 (1971)
21) On the Shape of the Photopeak in NaI (Tl)
Detector, Nuclear Instr. Methods, 116, 401
(1974)
22) A Simple Method to Determine the Resolving
Time of a NaI (Tl) Scintillation Detector, Nuclear Instr. Methods, 123, 405
(1975)
23) Anomalous Energy Loss of Electrons in
Ferroelectrics at Curie Temperture, Phys. Rev. Lett. 49, 1431 (1982)
24) External
Bremsstrahlung produced by Beta Particles in the Ferroelectrics and
Paraelectric States of a Barium Titanate Target, Jour. Phys. D. 16, 2537 (1983)
25) Critical Transmission of Beta Particles
through Thick Ferroelectric Targets at Curie Temperture, Phys. Lett. A. 101, 103 (1984)
26) Potential of Ferroelectrics as Radiation
Shields, Nature, 332, 689 (1988) (Scientific correspondence)
27) Internal Bremsstrahlung Spectrum of 35S in the range from 10 to 100 Ke
V, Phys. Rev. C. 39, 216 (1989)
28)
Internal Bremsstrahlung Spectrum of 35S in the Optical Region, Jour. Phys. G. 15, 1621 (1989)
Liquid
Scintillation
29) On a New Method of Determining the Compton
Edge in Liquid Scintillators. Nucl. Instr. Methods, 107, 201
(1973)
30) Comparative Study of Different Experimental
Methods for Measuring the Intensity of a Liquid Scintillator, Nuclear Instr. Methods, 127, 587
(1975)
31)
Effects of Solvents on the Absorption Spectra of Two
New Indoles, Jour. Phys. Soc. Japan, 40, 1145
(1976)
32) On the Mechanism of
Electronic Excitation Energy Migration in Organic Liquids, Phys. Lett. 108A, 167 (1985)
33) Electronic Excitation Energy Transfer in
Organic Liquid Scintillators, Jour. Chem. Phys. 84, 2087 (1986)
34) Effect of Dilution, Temperature and Viscosity
on Intermolecular Energy Transfer in Scintillotors, Jour. Phys. D. 19, 1381 (1986)
35) A Photoabsorption Method of Measuring
Molecular Diffusion Coefficients in Liquid Mixtures, Jour. Chem.. Phys. 84, 2295
(1986)
36) On the Role of Brownian Diffusion in
Electronic Energy Transfer between Aromatic Molecules in Liquids, Physics B+E 138B, 305 (1986)
37) An Experimental
Method of determining Electronic Excitation Energy Migration Coefficient in
Organic Liquids, Chem. Phys. Lett. 124, 31 (1986)
38) On the Mechanism of Intermolecular Energy
Transfer Encounter in Organic Liquids, Phys. Lett. A. 117, 97 (1986)
Student
Laboratory Experiments
39) Z-dependence of External Bremsstrahlung : A
Laboratory Experiment, Amer. Jour. Phys. 40, 591 (1972)
40) Sector Type Beta-Ray Spectrometer: A
Laboratory Experiment, Amer. Jour. Phys. 41, 242 (1973)
41) Conservation of
Mass-Energy and Linear momentum in Electron–Positron Annihilation: A Laboratory
Experiment, Amer. Jour. Phys. 43, 189 (1975)
42) Binding Energy of the Deuteron: A Laboratory Experiment, Amer. Jour. Phys. 43, 104 (1975)
43) Half life of Thorium –
232 : A Laboratory Experiment, Amer. Jour. Phys. 45, 1120 (1977)
44) Determination of the Rest–Mass Energy of the
Electron : A Laboratory Experiment, Amer. Jour. Phys. 45, 1119 (1977)
45) Fluorescence Spectrum of NaI (T1) Crystal : A
Laboratory Experiment, Amer. Jour. Phys. 47, 715 (1979)
Conductivity
46) Electrical Conduction in
Molecular Organic Polycrystalline Substances, Phil.
Mag. B. 44, 615 (1981)
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