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physics.ins-det2006
The measurement of scintillation emission spectra by a coincident photon counting technique
J E McMillan, C J Martoff
In the evaluation of novel scintillators, it is important to ensure that the spectrum of the light emitted by the scintillator is well matched to the response of the photomultiplie…
physics.ins-det2004
Negative Ion Drift and Diffusion in a TPC near 1 Bar
C. J. Martoff, R. Ayad, M. Katz-Hyman +2
Drift velocity and longitudinal diffusion measurements are reported for a Negative Ion TPC (NITPC) operating with Helium + carbon disulfide gas mixtures at total pressures from 160…
physics.ins-det2003
GEM Operation in Negative Ion Drift Gas Mixtures
J. Miyamoto, I. Shipsey, C. J. Martoff +4
The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in carbon disulfide vapor a…