S. Tonwar: search on Z-Library

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1

New results from ooty eas array for cosmic sources at PeV energies: CYGNUS X-3, Crab pulsar and Sco X-1

S.C. Tonwar, S.K. Gupta, N.V. Gopalakrishnan, M.R. Rajeev, R. Srivatsan, B.V. Sreekantan

Journal:

Nuclear Physics B - Proceedings Supplements

Year:

1990

Language:

english

File:

PDF, 829 KB

english, 1990

2

Studies of the energy spectrum and composition of the primary cosmic rays at 100–1000 TeV from the GRAPES-3 experiment

Tanaka, H, Dugad, S R, Gupta, S K, Jain, A, Mohanty, P K, Rao, B S, Ravindran, K C, Sivaprasad, K, Tonwar, S C, Hayashi, Y, Ito, N, Kawakami, S, Minamino, M, Nonaka, T, Oshima, A

Journal:

Journal of Physics G Nuclear and Particle Physics

Year:

2012

Language:

english

File:

PDF, 2.05 MB

english, 2012

3

Detection of ultrahigh-energy radiation from Scorpius X-1: Ooty observations during 1984–1987

Tonwar, S., Gopalakrishnan, N., Gupta, S., Rajeev, M., Sreekantan, B., Srivatsan, R.

Journal:

Physical Review Letters

Year:

1991

Language:

english

File:

PDF, 769 KB

english, 1991

4

Observations on muon multiplicity distribution with the GRAPES-2 experiment at Ooty for studies on the mass composition of cosmic rays at PeV energies

Gupta, S. K., Gopalakrishnan, N. V., John, A. V., Mohanty, D. K., Morris, S. D., Ravindran, K. C., Sivaprasad, K., Sreekantan, B. V., Srivatsan, R., Tonwar, S. C.

Journal:

Physical Review D

Year:

2003

Language:

english

File:

PDF, 555 KB

english, 2003

5

Search for bursts of gamma rays of energies > 1 GeV

Bhat, P. N., Gopalakrishnan, N. V., Gupta, S. K., Ramana Murthy, P. V., Sreekantan, B. V., Tonwar, S. C., Viswanath, P. R.

Journal:

Monthly Notices of the Royal Astronomical Society

Year:

1982

Language:

english

File:

PDF, 198 KB

english, 1982

6

AIP Conference Proceedings [AIP CENTENARY SYMPOSIUM 2012: DISCOVERY OF COSMIC RAYS - Denver, Colorado, USA (26–28 June 2012)] - Cosmic ray research in India: 1912-2012

Tonwar, Suresh C.

Year:

2013

Language:

english

File:

PDF, 1.58 MB

english, 2013

7

Transition effect between iron and liquid scintillator

F. Siohan, R.W. Ellsworth, A.S. Ito, J.R. MacFall, R.E. Streitmatter, S.C. Tonwar, G.B. Yodh

Journal:

Nuclear Instruments and Methods

Year:

1978

Language:

english

File:

PDF, 429 KB

english, 1978

8

Hadronic cascade curves in iron between 20 and 8000 GeV

F. Siohan, R.W. Ellsworth, A.S. Ito, J.R. MacFall, R.E. Streitmatter, S.C. Tonwar, P.R. Viswanath, G.B. Yodh

Journal:

Nuclear Instruments and Methods

Year:

1979

Language:

english

File:

PDF, 621 KB

english, 1979

9

An experimental system for detection of high energy cosmic gamma ray bursts

N.V. Gopalakrishnan, S.K. Gupta, P.V. Ramana Murthy, S.C. Tonwar

Journal:

Nuclear Instruments and Methods

Year:

1980

Language:

english

File:

PDF, 312 KB

english, 1980

10

On the distribution of inelasticity in high energy (20–100 GeV) nuclear collisions in carbon and brass

S. Lal, A. Subramanian, S.C. Tonwar, R.H. Vatcha

Journal:

Physics Letters

Year:

1965

Language:

english

File:

PDF, 185 KB

english, 1965

11

A study of albedo from hadronic calorimeter for energies ≈100–2000 GeV

R.W. Ellsworth, J.A. Goodman, A.S. Ito, J.R. Macfall, F. Siohan, R.E. Streitmatter, S.C. Tonwar, P.R. Viswanath, G.B. Yodh

Journal:

Nuclear Instruments and Methods in Physics Research

Year:

1982

Language:

english

File:

PDF, 628 KB

english, 1982

12

Measurements of the response of a hadronic calorimeter to beams of pions and protons of 1–10 GeV/c momenta

A.I. Mincer, H.T. Freudenreich, J.A. Goodman, S.C. Tonwar, G.B. Yodh, D. Berley, R.W. Ellsworth, T.A. Gabriel, B.L. Bishop

Journal:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Year:

1985

Language:

english

File:

PDF, 600 KB

english, 1985

13

Use of plexiglas sheets coated with wavelength-shifter dyes for detection of atmospheric Cherenkov radiation: A new technique for gamma ray astronomy at energies of ∼ 1013–1014 eV

A.R. Apte, S.G. Bhargavi, N.V. Gopalakrishnan, M.R. Rajeev, T. Selvankumaran, B.V. Sreekantan, S.C. Tonwar

Journal:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Year:

1988

Language:

english

File:

PDF, 592 KB

english, 1988

14

A new study on the energy spectrum and composition of primary cosmic rays at energies ∼ 1014–1016 eV using the GRAPES-3 array at Ooty

Journal:

Nuclear Physics B - Proceedings Supplements

Year:

2006

Language:

english

File:

PDF, 923 KB

english, 2006

15

Multi-pixel hybrid photodiode tubes for the CMS hadron calorimeter

P. Cushman, A. Heering, J. Nelson, C. Timmermans, S.R. Dugad, S. Katta, S. Tonwar

Journal:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Year:

1997

Language:

english

File:

PDF, 637 KB

english, 1997

16

On the high energy proton spectrum measurements

R. W. Ellsworth, A. Ito, J. Macfall, F. Siohan, R. E. Streitmatter, S. C. Tonwar, P. R. Vishwanath, G. B. Yodh, V. K. Balasubrahmanyan

Journal:

Astrophysics and Space Science

Year:

1977

Language:

english

File:

PDF, 660 KB

english, 1977

17

A high-performance, low-cost, leading edge discriminator

S. K. Gupta, Y. Hayashi, A. Jain, S. Karthikeyan, S. Kawakami, K. C. Ravindran, S. C. Tonwar

Journal:

Year:

2005

Language:

english

File:

PDF, 260 KB

english, 2005

18

A Monte Carlo simulation of the response of a hadronic calorimeter to protons of momentum 3.5 to 200 GeV/c

A.I. Mincer, T.A. Gabriel, B.L. Bishop, D. Berley, R.W. Ellsworth, H.T. Freudenreich, J.A. Goodman, S.C. Tonwar, G.B. Yodh

Journal:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Year:

1985

Language:

english

File:

PDF, 451 KB

english, 1985

19

Sporadic emission of ultra high energy gamma rays from crab pulsar

P.N. Bhat, S.K. Gupta, P.V.Ramana Murthy, B.V. Sreekantan, S.C. Tonwar, P.R. Vishwanath

Journal:

Advances in Space Research

Year:

1984

Language:

english

File:

PDF, 180 KB

english, 1984

20

EAS results and interpretation

Journal:

Nuclear Physics B - Proceedings Supplements

Year:

2003

Language:

english

File:

PDF, 1.49 MB

english, 2003

21

Search for High Energy Gamma Rays from Four Pulsars

CHATTERJEE, B. K., MURTHY, G. T., RAMANA MURTHY, P. V., SKEEKANTAN, B. V., TONWAR, S. C.

Journal:

Year:

1970

File:

PDF, 236 KB

1970

22

A search for ultra high-energy γ-ray bursts from celestial sources

Bhat, P. N., Gopalakrishnan, N. V., Gupta, S. K., Ramana Murthy, P. V., Sreekantan, B. V., Tonwar, S. C.

Journal:

Year:

1980

File:

PDF, 231 KB

1980

23

Nucleon-antinucleon production in high-energy (>1012eV) hadron collisions

S. C. Tonwar, S. Naranan, B. V. Sreekantan

Journal:

Lettere Al Nuovo Cimento Series 2

Year:

1971

File:

PDF, 18 KB

1971

24

Nucleon-antinucleon production in high-energy (> 1012eV) hadron collisions

S. C. Tonwar, S. Naranan, B. V. Sreekantan

Journal:

Lettere Al Nuovo Cimento Series 2

Year:

1969

Language:

english

File:

PDF, 393 KB

english, 1969

25

Search for heavy mass particles in extensive air showers

S C Tonwar, B V Sreekantan, R H Vatcha

Journal:

Year:

1977

Language:

english

File:

PDF, 388 KB

english, 1977

26

Observations on the nuclear interactions of cosmic ray pions and nucleons at energies ≳ 20 GeV

S. Lal, R. Raghavan, T. N. Rangaswamy, B. V. Sreekantan, A. Subramanian, S. D. Verma, S. C. Tonwar, R. H. Vatcha

Journal:

Proceedings Mathematical Sciences

Year:

1971

Language:

english

File:

PDF, 565 KB

english, 1971

27

Observations on the nuclear interaction of cosmic ray pions and nucleons of energies ≳ 20 GeV

S. Lal, R. Raghavan, T. N. Rangaswamy, B. V. Sreekantan, A. Subramanian, S. C. Tonwar, R. H. Vatcha

Journal:

Proceedings Mathematical Sciences

Year:

1971

Language:

english

File:

PDF, 821 KB

english, 1971

28

Time structure of the hadronic component of extensive air showers

S. C. Tonwar, G. T. Murthy, B. V. Sreekantan

Journal:

Proceedings Mathematical Sciences

Year:

1971

Language:

english

File:

PDF, 1.60 MB

english, 1971

29

UHE gamma ray observations with the KGF air shower array

B.S. Acharya, P.N. Bhat, S.G. Khairatkar, M.R. Rajeev, M.V.S. Rao, S. Sinha, K. Sivaprasad, B.V. Sreekantan, S.C. Tonwar, P.R. Vishwanath, K. Viswanathan

Journal:

Nuclear Physics B - Proceedings Supplements

Year:

1990

Language:

english

File:

PDF, 520 KB

english, 1990

30

Inelastic cross section for p-air collisions from air shower experiments and total cross section for p-p collisions up to √s =24 TeV

Honda, M., Nagano, M., Tonwar, S., Kasahara, K., Hara, T., Hayashida, N., Matsubara, Y., Teshima, M., Yoshida, S.

Journal:

Physical Review Letters

Year:

1993

Language:

english

File:

PDF, 226 KB

english, 1993

31

A new measurement of σp-Feinel and σπ-Feinel at high energies

J.R. Macfall, R.W. Ellsworth, A.S. Ito, F. Siohan, R.E. Streitmatter, S.C. Tonwar, P.R. Viswanath, G.B. Yodh

Journal:

Nuclear Physics B

Year:

1979

Language:

english

File:

PDF, 627 KB

english, 1979

32

High-Energy Gamma Rays from Pulsars

S. K. GUPTA, P. V. RAMANA MURTHY, B. V. SREEKANTAN, S. C. TONWAR, P. R. VISWANATH

Journal:

Annals of the New York Academy of Sciences

Year:

1984

Language:

english

File:

PDF, 65 KB

english, 1984

33

Gamma-ray Astronomy || Do γ -ray Bursts Contain γ -rays of Energies above 1 GeV?

P. N. Bhat, N. V. Gopalakrishnan, S. K. Gupta, P. V. Ramana Murthy, B. V. Sreekantan and S. C. Tonwar

Journal:

Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences (1934-1990)

Year:

1981

Language:

english

File:

PDF, 327 KB

english, 1981

34

Calculations of average characteristics of EAS components and Monte Carlo calculations of their fluctuations using different models of nuclear interactions. I. Methodology—Lateral structure and transition curve of electrons

Murthy, G. T., Sivaprasad, K., Rao, M. V. Srinivasa, Tonwar, S. C., Vatcha, R. H., Viswanath, P. R.

Journal:

Canadian Journal of Physics

Year:

1968

Language:

english

File:

PDF, 220 KB

english, 1968

35

Calculations of average characteristics of EAS components and Monte Carlo calculations of their fluctuations using different models of nuclear interactions. III. Nuclear-active particles

Murthy, G. T., Sivaprasad, K., Rao, M. V. Srinivasa, Tonwar, S. C., Vatcha, R. H., Viswanath, P. R.

Journal:

Canadian Journal of Physics

Year:

1968

Language:

english

File:

PDF, 220 KB

english, 1968

36

High-energy N particles in extensive air showers at 800 g/cm 2

Chatterjee, B. K., Murthy, G. T., Naranan, S., Sreekantan, B. V., Rao, M. V. Srinivasa, Tonwar, S. C., Vatcha, R. H.

Journal:

Canadian Journal of Physics

Year:

1968

Language:

english

File:

PDF, 238 KB

english, 1968

37

eV from data on high-energy muons in extensive air showers

Yodh, G. B., Goodman, J. A., Tonwar, S. C., Ellsworth, R. W.

Journal:

Physical Review D

Year:

1984

Language:

english

File:

PDF, 374 KB

english, 1984

38

High-energy hadrons in extensive air showers

Sreekantan, B. V., Tonwar, S. C., Viswanath, P. R.

Journal:

Physical Review D

Year:

1983

Language:

english

File:

PDF, 924 KB

english, 1983

39

Pion-to-proton ratio for unaccompanied high-energy cosmic-ray hadrons at mountain altitude using transition-radiation detector

Ellsworth, R. W., Ito, A. S., MacFall, J. R., Siohan, F., Streitmatter, R. E., Tonwar, S. C., Viswanath, P. R., Yodh, G. B.

Journal:

Physical Review D

Year:

1983

Language:

english

File:

PDF, 658 KB

english, 1983

40

eV

Goodman, J. A., Ellsworth, R. W., Ito, A. S., MacFall, J. R., Siohan, F., Streitmatter, R. E., Tonwar, S. C., Viswanath, P. R., Yodh, G. B.

Journal:

Physical Review D

Year:

1982

Language:

english

File:

PDF, 957 KB

english, 1982

41

Proton-proton cross sections from 1 to 100 TeV

Yodh, G. B., Tonwar, S. C., Gaisser, T. K., Ellsworth, R. W.

Journal:

Physical Review D

Year:

1983

Language:

english

File:

PDF, 140 KB

english, 1983

42

eV from the Study of Time Distributions of Energetic Hadrons Near Air-Shower Cores

Goodman, J. A., Ellsworth, R. W., Ito, A. S., MacFall, J. R., Siohan, F., Streitmatter, R. E., Tonwar, S. C., Vishwanath, P. R., Yodh, G. B.

Journal:

Physical Review Letters

Year:

1979

File:

PDF, 52 KB

1979

43

Search for heavy long-lived particles in high-energy cosmic rays

Mincer, A., Freudenreich, H., Goodman, J. A., Tonwar, S. C., Yodh, G. B., Ellsworth, R. W., Berley, D.

Journal:

Physical Review D

Year:

1985

Language:

english

File:

PDF, 257 KB

english, 1985

44

eV from the Study of Time Distributions of Energetic Hadrons near Air-Shower Cores

Goodman, J. A., Ellsworth, R. W., Ito, A. S., MacFall, J. R., Siohan, F., Streitmatter, R. E., Tonwar, S. C., Vishwanath, P. R., Yodh, G. B.

Journal:

Physical Review Letters

Year:

1979

Language:

english

File:

PDF, 734 KB

english, 1979

45

-ray source Geminga: GRAPES I observations at Ooty during 1984-1987

Gupta, S. K., Sreekantan, B. V., Srivatsan, R., Tonwar, S. C.

Journal:

Physical Review D

Year:

1993

Language:

english

File:

PDF, 114 KB

english, 1993

46

Delayed energetic events in extensive air showers

Bhat, P. N., Gupta, S. K., Murthy, P. V. Ramana, Sreekantan, B. V., Tonwar, S. C., Viswanath, P. R.

Journal:

Physical Review D

Year:

1982

Language:

english

File:

PDF, 797 KB

english, 1982

47

eV

Freudenreich, H. T., Mincer, A. I., Berley, D., Goodman, J. A., Tonwar, S., Wrotniak, A., Yodh, G. B., Ellsworth, R. W.

Journal:

Physical Review D

Year:

1990

Language:

english

File:

PDF, 906 KB

english, 1990

48

Observation of energetic delayed hadrons in air showers—New massive particles?

Goodman, J. A., Ellsworth, R. W., Ito, A. S., MacFall, J. R., Siohan, F., Streitmatter, R. E., Tonwar, S. C., Vishwanath, P. R., Yodh, G. B.

Journal:

Physical Review D

Year:

1979

Language:

english

File:

PDF, 192 KB

english, 1979

49

Low-energy muons in extensive air showers at 800 g cm −2

Chatterjee, B. K., Gopalakrishnan, N. V., Murthy, G. T., Naranan, S., Sreekantan, B. V., Rao, M. V. Srinivasa, Tonwar, S. C., Vatcha, R. H.

Journal:

Canadian Journal of Physics

Year:

1968

Language:

english

File:

PDF, 238 KB

english, 1968

50

A NEW STUDY ON THE ENERGY SPECTRUM AND COMPOSITION OF PRIMARY COSMIC RAY FLUX AT ENERGIES ~ 10 14 – 10 16 EV USING THE GRAPES-3 ARRAY AT OOTY

TONWAR, S. C., GUPTA, S. K., MOHANTY, D. K., MOHANTY, P. K., SIVAPRASAD, K., SREEKANTAN, B. V., HAYASHI, Y., ITO, N., KAWAKAMI, S., NONAKA, T., TANAKA, H., YOSHIKOSHI, T.

Journal:

International Journal of Modern Physics A

Year:

2005

Language:

english

File:

PDF, 214 KB

english, 2005