Focal plane instrumentation: A very high resolution MWPC system for inclined tracks

Bertozzi, W.; Hynes, M. V.; Sargent, C. P.; Creswell, C.; Dunn, P.C.; Hirsch, A.; Leitch, M. J.; Norum, B.; Rad, F. N.; Sasanuma, T.

doi:10.1016/0029-554x(77)90639-5

Cited by 149 publications

(20 citation statements)

References 16 publications

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“…A complete and detailed description of the high-resolution magnetic spectrometer and the electron detection system was already made [8,9]. A short presentation of the major parameters relevant to these data will be made here.…”

Section: Experimental Procedures and Data Analysismentioning

confidence: 99%

“…1. The major scattered electron sensor is a multiple wire proportional counter (MWPC) with 99 cells, which detects electrons through an electrical discharge signal recorded by detectors assembled at two extreme ends of the sensor [8]. Identification of at least three cells and the three respective drift times is enough to position precisely the track of the scattered electron at the focal plane of the spectrometer [8].…”

Section: Experimental Procedures and Data Analysismentioning

confidence: 99%

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Inelastic transverse electron scattering onMg25

Marinelli¹,

Moreira²

1992

Phys. Rev. C

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Measurements of inelastic electron cross sections from 'Mg at a backward angle and in the energy range 120 to 260 MeV are analyzed, and transverse form-factors results for the two lowest excited levels of the fundamental band were extracted. This new information is compared with rotational model calculations, in which the collective current contributions are included in phenomenological ways and on more microscopic theoretical grounds. For the energy levels considered the overall agreement is good, although no clear distinction between the various approximations for the rotational current could be made with the presently available data.PACS number(s): 25.30.Dh, 21.60.Ev, 27.30.+ t

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Section: Experimental Procedures and Data Analysismentioning

confidence: 99%

Section: Experimental Procedures and Data Analysismentioning

confidence: 99%

Inelastic transverse electron scattering onMg25

Marinelli¹,

Moreira²

1992

Phys. Rev. C

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“…The quadrupole polarities were configured for maximum angular acceptance in the bend (vertical) plane, a nonstandard configuration. Above the dipole was the vertical drift chamber (VDCX) [14] consisting of two planes of wires at 45" to the horizontal. The wires were read out using a delay-line system which allowed a maximum of four wires to be read from each plane; the drift times to those wires were measured.…”

Section: Methodsmentioning

confidence: 99%

Proton propagation in nuclei studied in the (e,e’p) reaction

et al. 1992

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Proton propagation in nuclei was studied using the (e,elp ) reaction in the quasifree region. The coincidence (e,elp) cross sections were measured at an electron angle of 50.4" and proton angles of 50. lo, 58.2", 67.9", and 72.9" for I2C, "~1 , 58Ni, and I8'Ta targets at a beam energy of 779.5 MeV. The average outgoing proton energy was 180 MeV. The ratio of the ( e , e l p ) yield to the simultaneously measured (e, e') yield was compared to that calculated in the plane-wave impulse approximation and an experimental transmission defined. These experimental transmissions are considerably larger (a factor of -2 for 1 8 '~a ) than those one would calculate from the free N-N cross sections folded into the nuclear density distribution. A new calculation that includes medium effects (N-N correlations, density dependence of the N-N cross sections and Pauli suppression) accounts for this increase.

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“…where to is the arrival time of the particle in the drift-cell, and t is the time at which the pulse appears at the anode [Ber77]. The quantity~is a measure of the spatial distributions of events in the drift-cell.…”

Section: Determining Focal-plane Positionmentioning

confidence: 99%

Nuclear Medium Effects on Analyzing Power Investigated With a Proton Knockout Reaction

Neveling

2004

Quarks, Hadrons, and Nuclei

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DeclarationI, the undersigned, hereby declare that the work contained in this dissertation is my own original work and that I have not previously in its entirety or in part submitted it at any university for a degree. Signature DateStellenbosch University http://scholar.sun.ac.za Abstract Nuclear medium effects on analyzing power investigated with a proton knockout reactionQuasi-free proton scattering provides a direct mechanism to study modifications of the free nucleon-nucleon interaction in the nuclear medium. It is known that due to the density dependence of the nucleon-nucleon interaction, quasi-free proton scattering from light targets ( Eksperimentele kansvlakke toon uitstekende ooreenstemming met VGIB berekeninge, en lewer spektroskopiese faktore op wat goed ooreenstem met resultate van (e, e'p)

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Focal plane instrumentation: A very high resolution MWPC system for inclined tracks

Cited by 149 publications

References 16 publications

Inelastic transverse electron scattering onMg25

Inelastic transverse electron scattering onMg25

Proton propagation in nuclei studied in the (e,e’p) reaction

Nuclear Medium Effects on Analyzing Power Investigated With a Proton Knockout Reaction

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