Scintillators and photomultipliers. Some tests for EPICS tune-up. [Time and pulse height resolution]

Different scintillators and photomultipliers have been tested with respect to time and pulse height characteristics and their variation over the area of a large scintillator (60 x 15 x 0.64 cm). Using minimum ionizing particles we achieved a time resolution of 0.8 ns, a spatial resolution of 5.5 cm, and a pulse height resolution of about 15 percent (FWHM). Viewed from one end, the pulse height varied exponentially vs distance with a break at about 15 cm from the end. The pulse height variation across the scintillator was 10 percent for source positions closest to the viewed end

Performance of multilayer dispersion elements from 80 to 500 eV

We have measured the reflectivity of several multilayer dispersion elements between 80 and 500 eV. Two samples of ReW-C and one of Ni-C with 2d spacing of approximately 70 A and 150 A were tested at angles of incidence between 10/sup 0/ to 80/sup 0/. Measurements were made by fixing the incident and reflected angles (Bragg) and scanning the photon energy. Theoretical analyses of these multilayers have also been made and the results are compared with the experimental measurements

Calculation of the classical triton burn-up in JET deuterium plasmas

SIGLEAvailable from British Library Document Supply Centre- DSC:4672.262(JET-P--87/35) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Determination of the deuterium plasma density ratio nd/ne through neutron measurements

SIGLEAvailable from British Library Document Supply Centre- DSC:4672.262(JET-P--87/08) / BLDSC - British Library Document Supply CentreGBUnited Kingdo