Mercuric iodide photodetector-cesium iodide scintillator gamma ray spectrometers

Markakis, J.

doi:10.1109/23.12742

Cited by 32 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The energy resolution performance of the present detector is limited by the statistical nature of the scintillation process and the photon-electron conversion inside the photodetector, the electronics noise, and by several inhomogeneities that could be related to the CsI(Tl) crystal, the reflector surrounding the scintillator and the photodetector area [16]. An estimation of the different contributions to the measured energy resolution consequently may be useful in order to evaluate if the current performances may be substantially enhanced.…”

Section: Discussionmentioning

confidence: 99%

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

Fiorini

Longoni

Perotti

et al. 1997

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

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

Fiorini

Longoni

Perotti

et al. 1997

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

show abstract

“…The device under test was fabricated with a saline contact similar to that reported [5]. The cell was then fabricated from a 10 mm × 10 mm HgI 2 crystal 1.5 mm thick and shown in Figure 1.…”

Section: Photo Response Of Photocellsmentioning

confidence: 99%

“…In addition to HgI 2 , we investigated Si-PiN. The tests were confined to LaBr 3 scintillators except a CsI/HgI 2 measurement, which was made to assess the performance of legacy HgI 2 photocell [4,5]. To provide a basis for comparison, the gamma-ray response of the LaBr 3 scintillator was also measured with a bi-alkali cathode PMT.…”

Section: Brief Summarymentioning

confidence: 99%

Development of High-Resolution Scintillator Systems

Franks¹,

Kernan²

2007

View full text Add to dashboard Cite

Mercuric iodide (HgI 2 ) is a well known material for the direct detection of gamma-rays; however, the largest volume achievable is limited by the thickness of the detector which needs to be a small fraction of the average trapping length for electrons. We report results of using HgI 2 crystals to fabricate photocells used in the readout of scintillators. The optical spectral response and efficiency of these photocells were measured and will be reported. Nuclear response from an HgI 2 photocell that was optically matched to a cerium-activated scintillator is presented and discussed. Further improvements can be expected by optimizing the transparent contact technology.

show abstract

“…Recently, the maximum obtainable diameter of Hgl photodiodes has been increased to 38 mm [27]. In the future these devices might replace photomultipliers when the size, the shape, the magnetic susceptibility or the poor quantum efficiency of the latter is a critical drawback.…”

mentioning

confidence: 99%

“…In combination with silicon photodiodes, CsI(Tl) produces the largest amount for 662 keV photons [27].…”

mentioning

confidence: 99%

A new gamma camera for positron emission tomography

Schotanus

Eijk

Hollander

1989

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

Mercuric iodide photodetector-cesium iodide scintillator gamma ray spectrometers

Cited by 32 publications

References 8 publications

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

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

Development of High-Resolution Scintillator Systems

A new gamma camera for positron emission tomography

Contact Info

Product

Resources

About