New Scintillators for Photosensitive Gaseous Detectors

Charpak, G.; Peskov, V.; Scigocki, D.; Valbis, J. A.

doi:10.1142/9789812795878_0057

Cited by 7 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first attempt to combine a CsI photocathode with gaseous detector (a parallel-plate chamber) was illustrated in [15]. CsI was deposited on a metallic plate by a vacuum deposition technique.…”

Section: Psgpms Combined With Csi Photocathodesmentioning

confidence: 99%

Position-Sensitive Gaseous Photomultipliers

Martinengo¹,

Nappi²,

Peskov³

2016

Advances in Chemical and Materials Engineering

View full text Add to dashboard Cite

Advances in the technologies associated with position sensitive gaseous detectors especially featuring CsI as reflective photoconverters will be reviewed. These photodetectors represent the most effective solution for what concerns cost and performance in the case of large area Cherenkov imaging applications in relatively low rate (or low occupancy) high energy physics and astrophysics experiments. Moreover, they are the only choice when the Cherenkov detector is embedded in a magnetic field. Recently proposed single-photon MPGDs (Micro-Pattern-Gaseous Detectors) will be also discussed in view of the successful efforts so far made to extend their sensitivity to visible light. With some modifications, photosensitive gaseous detectors can also be used in the imaging of X-rays and particles.

show abstract

Section: Psgpms Combined With Csi Photocathodesmentioning

confidence: 99%

Position-Sensitive Gaseous Photomultipliers

Martinengo¹,

Nappi²,

Peskov³

2016

Advances in Chemical and Materials Engineering

View full text Add to dashboard Cite

show abstract

“…The scintillation emission of LaF 3 (Nd) lies around 172nm through 5d-4f transition, and the quantum efficiency of the R8778 at 172nm is 30%. 1 As a consequence, the photon yield of the LaF 3 (Nd) was found to be about 100 photons/5.5MeV α.…”

Section: Jinst 4 P11006mentioning

confidence: 97%

“…In the last two decades, many gas photomultipliers with CsI photocathodes operated in both flushed gas mode and sealed gas mode have been developed and tested [1][2][3][4]. Moreover, large area micro pattern gaseous detectors with avalanche multiplication structures, such as Micromegas [5], GEM [6,7], and µPIC [8,9] have been developed and successfully operated.…”

Section: Introductionmentioning

confidence: 99%

Developmenst of a large area VUV sensitive gas PMT with GEM/μPIC

et al. 2009

View full text Add to dashboard Cite

A new large area UV photon detector with micro pattern gaseous detectors is developed and evaluated. A semitransparent CsI photocathode deposited on a MgF 2 window was combined with 10cm×10cm GEM and µPIC. Using Ar+C 2 H 6 (10%) gas, we achieved the gas gain of more than 10 5 which is enough to detect single photoelectron. We, then, irradiated vacuum UV photons (VUV, around 172nm) from the newly developed LaF 3 (Nd) scintillator to the detector and the single photoelectrons were successfully detected. We also demonstrated the imaging capability of the detector with µPIC readout systems.

show abstract

“…Gas photomultipliers (gas PMTs) with CsI photocathodes already have been developed to be used as UV detectors in high energy physics consisting of multi wire proportional chambers (MW-PCs) [1]- [4]. Although position-sensitive gas PMTs have been tested, the effective areas are small (< 1 cm 2 ) [5].…”

Section: Introductionmentioning

confidence: 99%

Development of a new imaging device using a VUV scintillator and a gas photomultiplier with a μ-PIC and GEM

et al. 2012

View full text Add to dashboard Cite

We have developed a new imaging device consisting of a VUV scintillator coupled to a gas photomultiplier (gas PMT) with a CsI photocathode, micro pixel chamber (µ-PIC) and gas electron multipliers (GEMs). Generally, the VUV scintillator has a short decay time of less than ∼10 nsec. Thus the new detector could be used under the high rate counting (∼10 MHz) in the hard X-ray to soft-gamma ray region. Our goal in this paper is to obtain a soft gamma-ray image at 0.1 MeV with our gas PMT combined with the VUV scintillator as a high rate counter, and we have optimized electric fields in the gas PMT and developed a new VUV scintillator with a higher light output. In order to obtain a higher collection efficiency of photoelectrons and suppress the ion feedback in the gas PMT, we first optimized the electric field. Then we decided the electric

show abstract

New Scintillators for Photosensitive Gaseous Detectors

Cited by 7 publications

References 0 publications

Position-Sensitive Gaseous Photomultipliers

Position-Sensitive Gaseous Photomultipliers

Developmenst of a large area VUV sensitive gas PMT with GEM/μPIC

Development of a new imaging device using a VUV scintillator and a gas photomultiplier with a μ-PIC and GEM

Contact Info

Product

Resources

About