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META

Construction and test of a proton detector

Kranefeld, G.
Bonn Univ. (Germany, F.R.). Physikalisches Inst.; Bonn Univ. (Germany, F.R.). Mathematisch-Naturwissenschaftliche Fakultaet1990

AbstractAbstract

[en] Nonmagnetic proton detectors will be used in future at the ELAN experiment. For this purpose a prototype of a proton telescope has being designed. The detector consists of three scintillation counters which are used as dE/dx counter, energy (stopping) counter and veto counter. This telescope was calibrated by using elastic electron proton scattering and tested with quasielastic electrodisintegration of the deuteron. These are no principal problems to identify the protons. In the electrodisintegration of the deuteron a missing mass resolution of ± 5.1 MeV was achieved. It has been shown, that such detectors are well suited for proton detection. (orig.)

[de]

Mit dem Protonendetektor wurden Protonen in einem elastischen und in einem inelastischen Prozess nachgewiesen. Die Identifikation macht in den zweidimensionalen Darstellungen keine Probleme. Mit der Impulseichung ueber die Flugzeit bei der elastischen Messung fuer 400 MeV-Protonen konnte eine Aufloesung von ± 6 MeV (corresponds to 3% ΔP/P) ereicht werden. Bei der d(e,e'p)n-Messung betraegt die Aufloesung in der Missing Mass σ = 5,1 MeV. Die gemessene und die berechnete Zaehlrate stimmen innerhalb der Fehlergrenzen bei der elastischen Messung ueberein. Bei der inelastischen Messung betraegt die Abweichung zwischen gemessener und berechneter Zaehlrate trotz der apparativen Schwierigkeiten und der Unsicherheit der theoretischen Wirkungsquerschnitte nur 8%. Die Schwierigkeiten bei der Zaehlratenbestimmung bei der quasielastischen Messung zeigen, dass die Protonen durch hoehere Diskriminatorschwellen und kleinere ADC-Gate- und Koinzidenzbreiten schaerfer eingegrenzt werden muessen. (orig.)

Original Title

Bau und Test eines Protonendetektors

Primary Subject

INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY (E4120)

Source

Aug 1990; 57 p; Diploma Thesis.

Record Type

Report

Literature Type

Thesis/Dissertation; Numerical Data

Report Number

BONN-IR--90-34

Country of publication

Germany

LanguageLanguage

German

Reference NumberReference Number

22032132

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

Electrodisintegration of the deuteron in the Δ-resonance region

AbstractAbstract

[en] A study of deuteron electrodisintergration has been performed as the first experiment at the new Bonn 3.5 GeV electron stretcher and accelerator ELSA. This process was measured at an average four-momentum transfer Q² = 0.122 (GeV/c)² in the invariant hadron mass range of 2.02-2.30 GeV. The outgoing proton was detected in coincidence with the scattered electron at three different adjustments of the spectrometer (Θ^lab_p = 44deg, 56deg, 68deg). The measured differential cross sections show the influence of the excitation of the Δ(1232) resonance in the deuteron. The experimental results are compared to theoretical calculations which include meson exchange currents, final-state interactions and isobar currents. (orig.)

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3420)

Secondary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3510)

Record Type

Journal Article

Literature Type

Numerical Data

Journal

Nuclear Physics. A; ISSN 0375-9474;

; CODEN NUPABL; v. 549(4); p. 471-484

Country of publication

Netherlands

LanguageLanguage

English

Reference NumberReference Number

24031316

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

L/T-structure of the electrodisintegration of the deuteron

AbstractAbstract

[en] Published in summary form only

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3420)

Secondary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3510)

Source

Spring meeting of nuclear physics sections; Fruehjahrstagung des Fachverbandes Physik der Hadronen und Kerne der Deutschen Physikalischen Gesellschaft e.V. (DPG) Gemeinsam mit der Oesterreichischen Physikalischen Gesellschaft (OePG); Salzburg (Austria); 24-28 Feb 1992

Record Type

Journal Article

Literature Type

Conference

Journal

Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195;

; CODEN VDPEA; v. 27(1); p. 69

Country of publication

Germany

Descriptors (DEI)

ANGULAR DISTRIBUTION, BREAKUP REACTIONS, DEUTERIUM TARGET, ELECTRON REACTIONS, ELECTRONS, INTERFERENCE, NEUTRONS, PROTONS, QUASI-ELASTIC SCATTERING, STRUCTURE FUNCTIONS

Descriptors (DEC)

BARYONS, CATIONS, CHARGED PARTICLES, DISTRIBUTION, ELEMENTARY PARTICLES, FERMIONS, FUNCTIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, IONS, LEPTON REACTIONS, LEPTONS, NUCLEAR REACTIONS, NUCLEONS, SCATTERING, TARGETS

Reference NumberReference Number

23041084

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

Electroproduction of η mesons on the proton and ⁴He

AbstractAbstract

[en] Published in summary form only

Primary Subject

PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2330)

Secondary Subject

PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2420), NUCLEAR PHYSICS AND RADIATION PHYSICS (G3510)

Source

Record Type

Journal Article

Literature Type

Conference

Journal

Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195;

; CODEN VDPEA; v. 27(1); p. 195

Country of publication

Germany

Descriptors (DEI)

ANGULAR DISTRIBUTION, COHERENT PRODUCTION, DIFFERENTIAL CROSS SECTIONS, ELECTRON REACTIONS, ELECTRON-PROTON INTERACTIONS, ELECTRONS, ELECTROPRODUCTION, ETA MESONS, HELIUM 4, HELIUM 4 TARGET, MEV RANGE 100-1000, N-1440 BARYONS, N-1535 BARYONS, PROTONS, QUASI-ELASTIC SCATTERING

Reference NumberReference Number

23050645

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

Bruins et al.Reply:

Bruins, E.E.; Bauer, T.S.; den Bok, H.W.; Duif, C.P.; van Hoek, W.C.; de Lange, D.J.; Misiejuk, A.; Papandreou, Z.; Sichtermann, E.P.; Tjon, J.A.; Willering, H.W.; Yeomans, D.M.; Reike, H.; Schoch, B.; Durek, D.; Frommberger, F.; Gothe, R.; Jakob, D.; Kranefeld, G.; Kunz, C.; Leiendecker, N.; Pfeiffer, G.; Putsch, H.; Reichelt, T.; Wacker, D.; Wehrmeister, D.; Wilhelm, M.; Jans, E.; Konijn, J.; de Vries, R.; Voutier, E.; Arenhoevel, H.1997

AbstractAbstract

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3420)

Secondary Subject

PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2390), PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2410)

Record Type

Journal Article

Journal

Physical Review Letters; ISSN 0031-9007;

; CODEN PRLTAO; v. 79(25); p. 5187

Country of publication

United States

Descriptors (DEI)

CROSS SECTIONS, ELECTROMAGNETIC FORM FACTORS, ELECTRON-NEUTRON INTERACTIONS, ELECTROPRODUCTION, MONTE CARLO METHOD, NEUTRONS, PHOTONS, PIONS

LanguageLanguage

English

Reference NumberReference Number

29021353

INIS VolumeINIS Volume

INIS IssueINIS Issue

META

Measurement of the neutron magnetic form factor

Bruins, E.E.W.; Bauer, T.S.; den Bok, H.W.; Duif, C.P.; van Hoek, W.C.; de Lange, D.J.J.; Misiejuk, A.; Papandreou, Z.; Sichtermann, E.P.; Tjon, J.A.; Willering, H.W.; Yeomans, D.M.; Reike, H.; Durek, D.; Frommberger, F.; Gothe, R.; Jakob, D.; Kranefeld, G.; Kunz, C.; Leiendecker, N.; Pfeiffer, G.; Putsch, H.; Reichelt, T.; Schoch, B.; Wacker, D.; Wehrmeister, D.; Wilhelm, M.; Jans, E.; Konijn, J.; de Vries, R.; Furget, C.; Voutier, E.; Arenhoevel, H.1995

AbstractAbstract

[en] The ratio of neutron and proton yields at quasifree kinematics was measured for the reactions ²H(e,e'n) and ²H(e,e'p) at momentum transfers Q²=0.125, 0.255, 0.417, and 0.605(GeV/c)², detecting the neutron and the proton simultaneously in the same scintillator array. The neutron detection efficiency was measured in situ with the ¹H(γ,π⁺)n reaction. From this the ratio R of ²H(e,e'n) and ²H(e,e'p) cross sections was determined and used to extract the neutron magnetic form factor Gⁿ_M in a model insensitive approach, resulting in an inaccuracy between 2.1% and 3.3% in Gⁿ_M

Primary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (G3420)

Secondary Subject

PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2390), PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (G2410)

Record Type

Journal Article

Journal

Physical Review Letters; ISSN 0031-9007;

; CODEN PRLTAO; v. 75(1); p. 21-24

Country of publication

United States

Descriptors (DEI)

CROSS SECTIONS, DEUTERIUM TARGET, ELECTROMAGNETIC FORM FACTORS, ELECTRON REACTIONS, MOMENTUM TRANSFER, NEUTRONS, PROTONS

Descriptors (DEC)

BARYONS, CATIONS, CHARGED PARTICLES, ELEMENTARY PARTICLES, FERMIONS, FORM FACTORS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, IONS, LEPTON REACTIONS, NUCLEAR REACTIONS, NUCLEONS, PARTICLE PROPERTIES, TARGETS

LanguageLanguage

English

Reference NumberReference Number

26070574

INIS VolumeINIS Volume

INIS IssueINIS Issue

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