Pulse height resolution of organic scintillators for monoenergeticgamma rays

The pulse height resolution of the NE102A and NE230 organic scintillators has been measured for monoenergetic gamma rays. The measurements were carried out the cylindrical NE102A scintillators and the NE230 scintillator using the gamma-gamma coincidence technique over the gamma-ray energy range 0.5-1.3 MeV. The energy resolution of the 125-mm NE102A detector varies from 22.8 to 13.3% over this energy range, while its energy corresponding to the half height of the Compton edge is 20.3 to 13.1% higher than the maximum energy of Compton electrons. Over the same energy range the energy resolution of the 50-mm NE102A detector varies from 19.6 to 11.5%, and its energy corresponding to the half height of the Compton edge is 12.6 to 6.6% higher than the maximum energy of Compton electrons. The energy resolution of the NE230 scintillator varies from 12.9 to 7.1% over this energy range, while its energy corresponding to the half height of the Compton edge is 10.4 to 2.1% higher than the maximum energy of Compton electron

Pulse height resolution of organic scintillators for monoenergeticgamma rays

The pulse height resolution of the NE102A and NE230 organic scintillators has been measured for monoenergetic gamma rays. The measurements were carried out the cylindrical NE102A scintillators and the NE230 scintillator using the gamma-gamma coincidence technique over the gamma-ray energy range 0.5-1.3 MeV. The energy resolution of the 125-mm NE102A detector varies from 22.8 to 13.3% over this energy range, while its energy corresponding to the half height of the Compton edge is 20.3 to 13.1% higher than the maximum energy of Compton electrons. Over the same energy range the energy resolution of the 50-mm NE102A detector varies from 19.6 to 11.5%, and its energy corresponding to the half height of the Compton edge is 12.6 to 6.6% higher than the maximum energy of Compton electrons. The energy resolution of the NE230 scintillator varies from 12.9 to 7.1% over this energy range, while its energy corresponding to the half height of the Compton edge is 10.4 to 2.1% higher than the maximum energy of Compton electron

Measurement of light output of NE213 and NE102A detectors for2.7-14.5 MeV neutrons

The light output of 125-mm-diameter NE213 and NE102A detectors has been measured for neutron energies ranging from 2.7 to 14.5 MeV. For neutron energies below 6.14 MeV, measurements were carried out using the neutron time-of-flight spectrum from an Am-Be neutron source, while for proton energies above 6.14 MeV, measurements were carried out using neutrons produced from the T(d,n) reaction. For the NE102A detector the measured light output is in good agreement with the data of R.A. Cecil et al., (1979) but for the NE213 detector the light output is 2-15% lower than that for a similar detector. The NE213 detector light output agrees with the data of V. Verbinski et al. (1968

Measurement of light output of NE213 and NE102A detectors for2.7-14.5 MeV neutrons

The light output of 125-mm-diameter NE213 and NE102A detectors has been measured for neutron energies ranging from 2.7 to 14.5 MeV. For neutron energies below 6.14 MeV, measurements were carried out using the neutron time-of-flight spectrum from an Am-Be neutron source, while for proton energies above 6.14 MeV, measurements were carried out using neutrons produced from the T(d,n) reaction. For the NE102A detector the measured light output is in good agreement with the data of R.A. Cecil et al., (1979) but for the NE213 detector the light output is 2-15% lower than that for a similar detector. The NE213 detector light output agrees with the data of V. Verbinski et al. (1968

RF Induced Depolarizing Resonanaces, Spin Flip, and Partial Siberian Snakes

This research was sponsored by the National Science Foundation Grant NSF PHY-931478

ANALYZING POWER MEASUREMENTS FOR p-p ELASTIC SCATTERING AT HIGH-P⊥2

Au Laboratoire National de Brookhaven (AGS), la mesure de la puissance d'analyse d'une diffusion élastique p-p de 28 GeV/c a été effectuée à p⊥2 = 5,95 et 6,56 (GeV/c)2 en utilisant une cible de protons polarisée et un faisceau de protons non-polarisé. Les résultats montrent que la puissance d'analyse, A, augmente rapidement avec p⊥2.The analyzing power in 28 GeV/c proton-proton elastic scattering was measured at p⊥2 = 5.95 and 6.56 (GeV/c)2 using a polarized proton target and an unpolarized proton beam at the Brookhaven National Laboratory AGS. Results indicate that the analyzing power, A, is rising sharply with p⊥2