Zobrazeno 1 - 10
of 160
pro vyhledávání: '"I.E. Qureshi"'
Autor:
M. Giorgini, A. Zanini, G. Mandrioli, M. Errico, Shahid Manzoor, G. Giacomelli, J. McDonald, L. Patrizii, Fabrizio Fabbri, Annarita Margiotta, V. Popa, Ashavani Kumar, R. Giacomelli, O. Saavedra, M. Cozzi, Antonio Velarde, James Pinfold, Z. Sahnoun, G. Sirri, C. Valieri, I.E. Qureshi, S. Cecchini, V. Togo, D. Di Ferdinando, Maurizio Spurio, E. Medinaceli
Publikováno v:
The European Physical Journal C. 57:525-533
The SLIM experiment at the Chacaltaya high altitude laboratory was sensitive to nuclearites and Q-balls, which could be present in the cosmic radiation as possible Dark Matter components. It was sensitive also to strangelets, i.e. small lumps of Stra
Autor:
J. McDonald, Antonio Velarde, V. Popa, R. Ticona, E. Medinaceli, J. Nogales, James Pinfold, L. Patrizii, M. Cozzi, I.E. Qureshi, V. Togo, Maurizio Spurio, Muhammad Shahzad, G. Sher, M. Frutti, G. Giacomelli, Ashavani Kumar, S. Cecchini, D. Di Ferdinando, Shahid Manzoor, O. Saavedra, Tommaso Chiarusi
Publikováno v:
Radiation Measurements. 40:405-409
SLIM is a large area experiment (440 m2) installed at the Chacaltaya cosmic ray laboratory since 2001, and about 100 m2 at Koksil, Himalaya, since 2003. It is devoted to the search for intermediate mass magnetic monopoles (107-1013 GeV/c2) and nuclea
Autor:
Muhammad Shahzad, Muhammad Sajid, I.E. Qureshi, Tabassum Nasir, Ehsan Ullah Khan, J.J. Baluch
Publikováno v:
Radiation Measurements. 43:S274-S278
Two different projectiles 208Pb and 197Au at the same energy ( 11.67 MeV / u ) have been bombarded on 197Au target to study heavy ion interactions using mica as a passive detector. In this paper we present results on the study of energy damping and t
Publikováno v:
Radiation Measurements. 43:S571-S577
The solid state nuclear track detection (SSNTD) technique is now a well-established tool for the detection of charged particles with stopping power greater than a certain threshold value. Being a passive detection system, it existed in the form of pr
Autor:
Muhammad Shahzad, Ehsan Ullah Khan, J.J. Baluch, Muhammad Sajid, I.E. Qureshi, Tabassum Nasir, Hameed A. Khan
Publikováno v:
Radiation Measurements. 43:S279-S282
The technique of solid state nuclear track detection was employed to collect data of elastic scattering as well as inelastic reaction channel. The elastic data of the reactions U 238 + Bi 209 , U 238 + Au 197 , Pb 208 + Au 197 and Au 197 + Au 197 wer
Autor:
Shahid Manzoor, Muhammad Shahzad, G. Sher, Mukhtar Ahmed Rana, I.E. Qureshi, Ehsan Ullah Khan
Publikováno v:
Radiation Measurements. 42:125-129
CR-39 detectors were exposed to 5.9 MeV antiprotons at CERN. After exposure, the detectors were etched in 6N NaOH solution at 70 ∘ C . Antiproton tracks were revealed after 135 min of etching and their further growth was studied as a function of et
Publikováno v:
Nuclear Physics A. 765:390-400
Fission induced by energetic negative pions in gold and bismuth has been studied experimentally and theoretically. CR-39 dielectric track detectors in 4π-geometry were used to determine experimental cross sections, and the computer code CEM95 has be
Publikováno v:
Radiation Measurements. 41:217-221
Using mica as a passive detector and employing the 2 π -geometry technique (14.0 MeV/u) 208 Pb + 238 U heavy-ion nuclear interaction has been studied. The particle tracks were converted into their actual lengths and polar angles through simple geome
Publikováno v:
Radiation Measurements. 40:464-469
The kinematical analysis of nuclear reactions between (16.7 MeV/u) 238U and nat.Au ions has been performed by using mica solid-state track detectors (SSNTD). The reaction products emanating from each isolated collision vertex were registered in the f
Publikováno v:
Radiation Measurements. 40:583-586
Measurement of the correct neutron fluence in various energy intervals in and around the neutron sources is important for the purpose of personnel and environmental neutron dosimetry. In the present paper we present a method for the measurement of ne