First beam test of a liquid Cherenkov detector prototype for a future TOF measurements at the Super-FRS

First beam test of a liquid Cherenkov detector prototype for a future TOF measurements at the Super-FRS

Bibliografiska uppgifter
Parent link:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Vol. 866.— 2017.— [P. 207-212]
Institutionell upphovsman: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра экспериментальной физики (ЭФ)
Övriga upphovsmän: Kuzminchuk-Feuerstein N. A. Natalia Aleksandrovna, Ferber N. Nadine, Fiks E. I. Elena Ivanovna, Kaufeld I. Ingo, Voss B. Bernd
Sammanfattning:Title screen
In 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.
Режим доступа: по договору с организацией-держателем ресурса
Språk:engelska
Publicerad: 2017
Ämnen:
электронный ресурс
труды учёных ТПУ
черенковские детекторы
тяжелые ионы
время
пролетные электроны
Länkar:https://doi.org/10.1016/j.nima.2017.06.010
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655334

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