Directional-correlation results for 134Ba and 110Cd using a megachannel gamma- gamma coincidence system
作者： Wayne D. Ruhter , David C. Camp
DOI: 10.1016/0029-554X(80)90905-2
关键词:
摘要: Abstract The development of high-resolution Ge(Li) detectors has created a need for gamma-ray coincidence analysis systems able to process and store the large quantities data generated. We describe megachannel pulse-height system that can sort these on line. This is accomplished using 32K-word PDP-8/E minicomputer two moving-head disks provide storage capacity 2 18 events at any 20 locations. An X -or Y -pulse-height spectrum, in with one four arithmetically combined peak background windows, be assembled CRT display spectral within 2–20 s. rapid recovery allows convenient set-up monitoring experiments anlyysis accumulated data. To test performance system, we made directional-correlation measurements cascades 134 Ba 110 Cd. Analyses gave E2/M1 mixing ratios most transitions agreed well published results. Using this its improved energy resolution processing capabilities, obtained new ratio results 13.3 ± 2.1 563 keV transition −1.24 0.20 1505
elsevier.com
sci-hub.se 参考文章(16)
P.D. Johnston, N.J. Stone, Nuclear orientation of 110mAg in iron and nickel Nuclear Physics A. ,vol. 206, pp. 273- 287 ,(1973) , 10.1016/0375-9474(73)90532-0
S.M. Brahmavar, J.H. Hamilton, A.V. Ramayya, E.F. Zganjar, C.E. Bemis, The decay of 110mAg: Gamma-ray energy and intensity standardization Nuclear Physics A. ,vol. 125, pp. 217- 226 ,(1969) , 10.1016/0375-9474(69)90840-9
E. L. Church, J. J. Kraushaar, The Geometrical Correction in Angular Correlation Measurements Physical Review. ,vol. 88, pp. 419- 420 ,(1952) , 10.1103/PHYSREV.88.419
B. Singh, H.W. Taylor, M1/E2 multipole mixing of the 563 and 569 keV transitions in 134Ba Nuclear Physics A. ,vol. 145, pp. 561- 568 ,(1970) , 10.1016/0375-9474(70)90441-0
James H. McQuaid, A High-Rate Direct-Coupled Preamplifier for High Energy Ge Detector Systems IEEE Transactions on Nuclear Science. ,vol. 19, pp. 396- 402 ,(1972) , 10.1109/TNS.1972.4326540
R.A. Brown, G.T. Ewan, Study of the decay of Cs134 with a high resolution Ge(Li) γ-ray spectrometer Nuclear Physics. ,vol. 68, pp. 325- 336 ,(1965) , 10.1016/0029-5582(65)90650-4
J.P. Gonidec, Réalisation d'une chaîne d'analyse bidimensionnelle 512 000 canaux à l'aide d'un ordinateur IBM 1800 Nuclear Instruments and Methods. ,vol. 88, pp. 125- 135 ,(1970) , 10.1016/0029-554X(70)90870-0
M. Behart, R.M. Steffen, C. Telescq, The spin of the 1643 keV state and multipole mixing ratios of γ-transitions in 134Ba Nuclear Physics A. ,vol. 192, pp. 218- 224 ,(1972) , 10.1016/0375-9474(72)90016-4
F. M�nnich, K. Fricke, J. Koch, Untersuchung des Zerfalls von Ag 110m durch γ-γ-Richtungskorrelationsmessungen European Physical Journal. ,vol. 181, pp. 301- 316 ,(1964) , 10.1007/BF01418538
J.W.D. Sinclair, J.W. Smith, C.M. Rozsa, S.L. Blatt, A real-time 448 000-channel multiparameter pulse-height analysis system Nuclear Instruments and Methods. ,vol. 111, pp. 61- 65 ,(1973) , 10.1016/0029-554X(73)90097-9