State-of-The-Art Photomultipliers for Anger Cameras

Persyk, D.E.; Moi, T. E.

doi:10.1109/tns.1978.4329382

Cited by 19 publications

(2 citation statements)

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“…This -ray detector may operate with high resolution over a wide energy range, with an energy threshold of about 10 keV at room temperature and of about 4 keV at 0 C. At 662 keV, the current resolution is 4.4% FWHM, while the best results obtained in the past at this energy were, to our knowledge: 5.6% FWHM using a PMT [3], 5.5% FWHM employing a Silicon Drift Photodiode Array as photodetector [14], 4.58% FWHM obtained with a CsI(Tl) crystal coupled to a mercuric iodide (HgI ) device [15]. This later value was, however, obtained by a 13-mm-diameter photodetector, with a sensitive area much larger than that of our SDC.…”

Section: Discussionmentioning

confidence: 83%

“…The maximum quantum efficiency of a PMT is less than 25% and, at the wavelength of the maximum emission of the CsI(Tl) around 565 nm, this value decreases to about 15%, using an S20 photocathode which gives the maximum quantum efficiency at this wavelength. The best energy resolution that may be obtained using a PMT is of Manuscript the order of 5.6% full-width at half-maximum (FWHM) at 662 keV [3], with a threshold of a few keV. Silicon photodiodes (PD) coupled to scintillators offer considerable advantages compared with PMT's.…”

Section: Introductionmentioning

confidence: 99%

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Gamma ray spectroscopy with CsI(Tl) scintillator coupled to silicon drift chamber

Fiorini

Longoni

Perotti

et al. 1997

IEEE Trans. Nucl. Sci.

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A -ray detector, designed around a silicon drift chamber having a diameter of 3 mm and coupled to a CsI(Tl) scintillator of the same diameter and 10 mm thick, has been realized and extensively tested. This detector may operate over a wide energy band with a minimum energy threshold that may be set around 10 keV at room temperature or at around 4 keV at 0 C. At the typical energy of 662 keV used to characterize a -ray spectrometer, an energy resolution of 4.4% full-width at halfmaximum has been measured at room temperature. This detector shows high energy resolution over the full energy range explored, 6 keV-1.27 MeV, and to our knowledge the results reported are the best ever obtained with a scintillator.

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Section: Discussionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%