THE GROUND-LEVEL COSMIC-RAY EVENT OF SEPTEMBER 29, 1989 AS RECORDED BY THE ROME DETECTORS

被引：7

作者：

ALESSIO, M

ALLEGRI, L

FARGION, D

IMPROTA, S

IUCCI, N

PARISI, M

VILLORESI, G

ZANGRILLI, NL

机构：

[1] Dipartimento di Fisica dell'Università La Sapienza, Roma, 00185

[2] Istituto di Fisica Spazio Interplanetario del C.N.R., Frascati

[3] Dipartimento di Fisica dell'Università La Sapienza, Roma, 00185

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS | 1991年 / 14卷 / 01期

关键词：

Cosmic rays; Energetic solar particles and photons;

D O I：

10.1007/BF02509257

中图分类号：

学科分类号：

摘要：

An extraordinary increase in cosmic-ray intensity has been recorded on September 29, 1989 by the Rome detectors (rigidity threshold approximately 6.2 GV). We show the time evolution of the event as recorded at Rome in the nucleonic component and in the total ionizing and muon components; as well as at Campo Imperatore (2300 m a.s.l. near Rome) in the nucleonic component by a special monitor designed for the detection of solar-neutron events. The one-minute time resolution of the Campo Imperatore data offers the possibility to follow in detail the development of the event for most of the time. The possible contribution of solar neutrons to the early phase of the Campo Imperatore event has been not clarified so far, further results may be obtained by the analysis of the multiplicity data registered in the event.

引用

页码：53 / 60

页数：8