002161133 001__ 2161133
002161133 003__ SZGeCERN
002161133 005__ 20220810150536.0
002161133 0247_ $$2DOI$$a10.1016/j.nima.2015.08.029
002161133 0248_ $$aoai:cds.cern.ch:2161133$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pcerncds:CERN
002161133 041__ $$aeng
002161133 100__ $$aRinkel, Jean$$uLNLS, Campinas
002161133 245__ $$aEqualization method for Medipix3RX
002161133 260__ $$c2015
002161133 520__ $$aThis paper describes a new method of threshold equalization for X-ray detectors based on the Medipix3RX ASIC, using electrical pulses to calibrate and correct for the threshold dispersion between pixels. This method involves a coarse threshold tuning, based on two 8 bits global DACs and which sets the range of variation of the threshold values; and a fine-tuning, based on two 5-bits adjustment DACs per pixel. As our fine-tuning approach is based on a state-of-the-art methodology, our coarse tuning relies on an original theoretical model. This model takes into account the noise level of the ASIC, which varies with temperature and received radiation dose. The experimental results using 300 μm Si sensor and Kα fluorescence of Zn show a global energy resolution improvement of 14% compared to previous equalization methods. We compared these results with the best achievable global energy resolution given by the resolution of individual pixels and concluded that the remaining 14% difference was due to the discretization error limited by the number of equalization bits.
002161133 540__ $$3publication$$aCC-BY-4.0$$fCERN Library
002161133 542__ $$3publication$$dCERN$$g2015
002161133 65017 $$2SzGeCERN$$aDetectors and Experimental Techniques
002161133 690C_ $$aARTICLE
002161133 690C_ $$aCERN
002161133 700__ $$aMagalhães, Debora$$uLNLS, Campinas
002161133 700__ $$aWagner, Franz$$uLNLS, Campinas
002161133 700__ $$aFrojdh, Erik$$uCERN
002161133 700__ $$aBallabriga Sune, Rafael$$uCERN
002161133 773__ $$c1-6$$pNucl. Instrum. Methods Phys. Res., A$$v801$$y2015
002161133 8564_ $$81196813$$s519704$$uhttps://cds.cern.ch/record/2161133/files/nima-801-1.pdf$$yElsevier Open Access article
002161133 8564_ $$81196813$$s1735992$$uhttps://cds.cern.ch/record/2161133/files/nima-801-1.pdf?subformat=pdfa$$xpdfa$$yElsevier Open Access article
002161133 916__ $$sh$$w201623
002161133 960__ $$a13
002161133 980__ $$aARTICLE