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035 _a(RuTPU)RU\TPU\network\21414
090 _a655334
100 _a20170830a2017 k y0engy50 ba
101 0 _aeng
_deng
102 _aNL
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aFirst beam test of a liquid Cherenkov detector prototype for a future TOF measurements at the Super-FRS
_fN. A. Kuzminchuk-Feuerstein [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 212 (28 tit.)]
330 _aIn order to separate and identify fragmentation products with the Super-Fragment Separator (SuperFRS) at FAIR a high resolving power detector system is required for position and Time-Of-Flight (TOF) measurements. The TOF detector is used to measure the velocity of the particles and hence, in conjunction with their momentum or energy, to determine their mass and hence their identity. Aiming to develop a system with a precision down to about 50 ps in time and resistant to a high radiation rate of relativistic heavy ions of up to 107 per spill (at the second focal plane), we have shown a conceptual design for a Cherenkov detector envisioned for the future TOF measurements employing Iodine Naphthalene (C10H7I) as a fluid radiator. The application of a liquid radiator allows the circulation of the active material and therefore to greatly reduce the effects of the degradation of the optical performance expected after exposure to the high ion rates at the Super-FRS. The prototype of a TOF-Cherenkov detector was designed, constructed and its key-properties have been investigated in measurements with heavy ions at CaveC at GSI. These measurements were performed with nickel ions at 300-1500 MeV/u and ion-beam intensities of up to 4×106 ions/spill of 8 s. As a first result a maximum detection efficiency of 70% and a timing resolution of 267 ps (σ) was achieved. We report the first attempt of time measurements with a Cherenkov detector based on a liquid radiator. Further optimization is required.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
463 _tVol. 866
_v[P. 207-212]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aчеренковские детекторы
610 1 _aтяжелые ионы
610 1 _aвремя
610 1 _aпролетные электроны
701 1 _aKuzminchuk-Feuerstein
_bN. A.
_gNatalia Aleksandrovna
701 1 _aFerber
_bN.
_gNadine
701 1 _aFiks
_bE. I.
_cphysicist
_cengineer-researcher of Tomsk Polytechnic University, candidate of physico-mathematical Sciences
_f1988-
_gElena Ivanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33634
701 1 _aKaufeld
_bI.
_gIngo
701 1 _aVoss
_bB.
_gBernd
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра экспериментальной физики (ЭФ)
_h7596
_2stltpush
_3(RuTPU)RU\TPU\col\21255
801 2 _aRU
_b63413507
_c20170830
_gRCR
856 4 _uhttps://doi.org/10.1016/j.nima.2017.06.010
942 _cCF