Journal ArticleDOI
A new imaging device based on UV scintillators and a large area gas photomultiplier
Hiroyuki Sekiya,C. Ida,Hidetoshi Kubo,Shunsuke Kurosawa,Kentaro Miuchi,Toru Tanimori,Kojiro Taniue,Akira Yoshikawa,Takayuki Yanagida,Yuui Yokota,Kentaro Fukuda,Sumuto Ishizu,Noriaki Kawaguchi,Toshihisa Suyama +13 more
TLDR
In this paper, a new type high spatial resolution radiation detector based on a UV scintillator+a UV imaging gas photomultiplier is presented, which consists of a 10 cm×10 cm μPIC, 2 GEMs and a semitransparent CsI photocathode deposited on a MgF2 window.Abstract:
A new type high spatial resolution radiation detector based on a UV scintillator+a UV imaging gas photomultiplier is presented. The prototype UV detector consists of a 10 cm×10 cm μPIC, 2 GEMs and a semitransparent CsI photocathode deposited on a MgF2 window. The effective photo-sensitive area is ϕ34 mm and the readouts are 400 μm pitch strips. A newly developed 20 mm size LaF3(Nd) crystal which emits 172 nm photons is coupled to the detector for the first step. The detector was tested in pulse mode operation with 5.5 MeV α particles from 241Am. The single photoelectrons were successfully detected and the images of the crystal shape were clearly obtained.read more
Citations
More filters
Journal ArticleDOI
Study of rare-earth-doped scintillators
TL;DR: In this article, the characteristics of these inorganic materials and their advantages and disadvantages for scintillators are discussed, as well as the advantages of using these materials in radiation detection applications.
Journal ArticleDOI
Narrowband Ultraviolet Photodetectors Based on Nanocomposite Thin Films with High Gain and Low Driving Voltage
TL;DR: This method offers a pathway to design and fabricate narrowband UV photodetectors with high gain and low driving voltage by adopting a symmetric device structure, controlling the active layer composition and microstructure, and manipulating the light penetration depth in theactive layer.
Journal ArticleDOI
Optical and scintillation properties of Nd-doped SrAl2O4 crystals
TL;DR: In this paper, a floating zone (FZ) method with different dopant concentrations was used for the preparation of Nd-doped SrAl2O4 (Nd:SrAl 2O4) crystals.
Journal ArticleDOI
Scintillation properties of Nd3+, Tm3+, and Er3+ doped LuF3 scintillators in the vacuum ultra violet region
Takayuki Yanagida,Noriaki Kawaguchi,Noriaki Kawaguchi,Kentaro Fukuda,Shunsuke Kurosawa,Yutaka Fujimoto,Yoshisuke Futami,Yuui Yokota,Kojiro Taniue,Hiroyuki Sekiya,Hidetoshi Kubo,Akira Yoshikawa,Toru Tanimori +12 more
TL;DR: In this article, the authors developed novel vacuum ultra violet (VUV) emitting scintillators by the μ-pulling down method, and they measured their transmittance and X-ray induced radioluminescence in these three samples using their original spectrometer made by Bunkou-Keiki company.
Journal ArticleDOI
Optical and scintillation properties of Nd differently doped YLiF4 from VUV to NIR wavelengths
TL;DR: In this article, the optical and scintillation properties from vacuum ultraviolet (VUV) to near infrared (NIR) wavelengths were investigated and the decay times of VUV emission were 40-80ns while that of 4f-4f ones at visible wavelength were around 12-15μs.
References
More filters
Journal ArticleDOI
GEM: A new concept for electron amplification in gas detectors
TL;DR: The gas electrons multiplier (GEM) as discussed by the authors is a composite grid consisting of two metal layers separated by a thin insulator, etched with a regular matrix of open channels, inserted in a gas detector on the path of drifting electrons.
Journal ArticleDOI
MICROMEGAS: a high-granularity position-sensitive gaseous detector for high particle-flux environments
TL;DR: In this paper, a two-stage parallet-plate avalanche chamber of small amplification gap (100 μm) combined with a conversion-drift space is proposed for a gaseous detector.
Journal ArticleDOI
Advances in gaseous photomultipliers
Rachel Chechik,Amos Breskin +1 more
TL;DR: In this article, the authors review the latest progress in gaseous photomultipliers (GPMs) combining solid photocathodes and various types of novel electron multipliers.
Journal ArticleDOI
Performance of triple GEM tracking detectors in the COMPASS experiment
TL;DR: In this paper, a set of twenty large-area micropattern gas detectors based on the Gas Electron Multiplier (GEM) was used to track charged particles in the near-beam area.
Journal ArticleDOI
Sealed GEM photomultiplier with a CsI photocathode: ion feedback and ageing
Amos Breskin,A. Buzulutskov,A. Buzulutskov,Rachel Chechik,Bhartendu K. Singh,A. Bondar,Lev Shekhtman +6 more
TL;DR: In this paper, the performance of a sealed gaseous photomultiplier consisting of a cascade of 3 or 4 Gas Electron Multiplier (GEM) elements coupled to a semitransparent CsI photocathode, in Ar/CH 4 (95/5), was presented.