Universität zu Köln

Rudigier, M., Podolyak, Zs, Regan, P. H., Bruce, A. M., Lalkovski, S., Canavan, R. L., Gamba, E. R., Roberts, O., Burrows, I, Cullen, D. M., Fraile, L. M., Gerhard, L., Gerl, J., Gorska, M., Grant, A., Jolie, J., Karayonchev, V, Kurz, N., Korten, W., Lazarus, I. H., Nita, C. R., Pucknell, V. F. E., Regis, J-M, Schaffner, H., Simpson, J., Singh, P., Townsley, C. M., Smith, J. F. and Vesic, J. (2020). FATIMA - FAst TIMing Array for DESPEC at FAIR. Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 969. AMSTERDAM: ELSEVIER. ISSN 1872-9576

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Abstract

The components, working principle and characteristics of FATIMA (FAst TIMing Array), a fast-timing detector system for DESPEC at FAIR, are described. The core system includes 36 LaBr3(Ce) scintillator detectors, a mounting frame for the DESPEC station and a VME-based fast-timing data acquisition system. The current electronic timing circuit is based on V812 constant fraction discriminators and V1290 time-to-digital converters. Gamma-ray energies are measured using V1751 digitisers. Characteristics of the core FATIMA system including efficiency, energy, and coincidence resolving time, as well as limitations, are discussed on the basis of test measurements performed in the S4 cave at GSI, Germany. The coincidence gamma-gamma time resolution for the prompt Co-60 cascade is determined to be similar to 320 ps full width at half maximum. The total full energy peak efficiency at 1 MeV for the 36 detector array in the DESPEC setup is 2.9%. The energy-dependent prompt response centroid curve with the current CFD/TDC combination is shown to be smooth; the centroid shift method can be applied for the measurement of half-lives below 200 ps. An overview of applications of the FATIMA detectors as an ancilliary system in combination with other detector arrays during recent years is given. Data on the operation of the detectors in the presence of magnetic fields are presented.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Rudigier, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Podolyak, Zs UNSPECIFIED UNSPECIFIED UNSPECIFIED Regan, P. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bruce, A. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lalkovski, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Canavan, R. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gamba, E. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Roberts, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Burrows, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Cullen, D. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fraile, L. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gerhard, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gerl, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gorska, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grant, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jolie, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Karayonchev, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Kurz, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Korten, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lazarus, I. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nita, C. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pucknell, V. F. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Regis, J-M UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaffner, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Simpson, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Singh, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Townsley, C. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Smith, J. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vesic, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-326049
DOI:	10.1016/j.nima.2020.163967
Journal or Publication Title:	Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
Volume:	969
Date:	2020
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1872-9576
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language LIFETIME MEASUREMENTS; DETECTOR ARRAY; NUSTAR; STATES; SPECTROSCOPY; PERFORMANCE; PROJECT; NUCLEI; ZR-100 Multiple languages Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/32604