
Introduction
The Israel Cosmic Ray Center has indeed been
established, with affiliations to Tel Aviv University, to the
Technion (Israel Institute of Technology) and to the Israel Space
Agency (under the aegis of the Ministry of Science). The staff of
the Israel Cosmic Ray Center is as follows:
Prof.
L.I. DORMAN - principal investigator, head of the Center and
Observatory;
Dr.
L.A. PUSTIL'NIK - researcher,
Dr.
I.G. ZUKERMAN - researcher.
The aims of the Project "Israel
Cosmic Ray Center" for the first three years, starting in
November 1997, are as follows:
- 1. to establish the Israel Cosmic Ray Center, including a
Cosmic Ray Observatory, based on a collaboration
with the Italian Cosmic Ray Group, who graciously
put at our disposal the neutron monitor previously
utilized at their Antarctic and other expedidions;
2. to establish a World Data Center for Cosmic
Rays, based on an archive graciously put at our disposal
by the Swedish Cosmic Ray Group;
3. to enact a research program in Cosmic Ray
Astrophysics and in Geophysics;
4. in collaboration with other Cosmic Ray
Observatories, to develop analytical methods of
forecasting anomalous Cosmic Radiation events,
representing changes in the Interplanetary and Near-Earth
environment. Such events could possibly be harmful to
space-probes, to earth orbiting equipment, to air-travel,
to electromagnetic communications and perhaps even to
living beings on Earth. Phenomena which might indicate
such developments include, for example, large solar
flares, the impacting of energetic particles and Forbush-decreases
connected with large geomagnetic disturbances. The
network of observatories providing such early-warning
services will form the International Cosmic Ray
Service.
ORGANIZATION AND
EXPERIMENT
The Israel Cosmic Ray Center has indeed been
established, with affiliations to Tel Aviv University, to
the Technion (Israel Institute of Technology) and to the
Israel Space Agency (under the aegis of the Ministry of
Science). The staff of the Israel Cosmic Ray Center is as
follows:
1. Prof. L.I. DORMAN - principal investigator, head of
the Center and Observatory;
2. Dr. L.A. PUSTILNIK - researcher,
3. Dr. I.G. ZUKERMAN - researcher,
4. Dr. A.G. ZUSMANOVICH researcher.
The following necessary facilities were put at its
disposal:
- The Mobile Cosmic Ray Neutron Monitor,
supplied by the Italian group, as above
mentioned, was prepared for reutilization, in
collaboration with scientists of the Italian
group in Rome, and transferred in June 1998 to
the site selected for the Emilio Segre
Observatory (33deg18.3minN, 35deg47.2minE, 2020 m
above sea level, cut-off rigidity for vertical
direction Rc=10.8 GV).
- Measurements of general cosmic ray
intensity, of air pressure, and of the specific
intensities for neutron multiplicities >=1,
>=2,>=3, >=4, >=5, >=6, >=7 and
>=8 were performed at sea level in the port of
Haifa and for the Emilio Segre Observatory site,
at the ski lifts both lower and upper
stations. With these data, the cosmic ray
barometric coefficients for Israel were
determined, using information on primary cosmic
ray variations as set by the Rome and other
cosmic ray observatories neutron monitor data.
- The (Israel-Italy) Emilio Segre
Cosmic Ray Observatory has been operational since
June 1998 in a continuous (24 hours per day) mode.
- The results of measurements
data taken at one minute intervals -- of cosmic
ray neutron intensities at two separate sites,
as well as similar one-minute data about the
intensities relating to neutron multiplicities
>=1, >=2, >=3, >=4, >=5, >=6,
>=7 and >=8 all of this data has
been computer-stored.. Similar one-minute data
relating to air pressure, as well as temperature
and humidity -- inside the Cosmic Ray Observatory
have also been recorded.
- The archive of the World Data Center
for Cosmic Rays was transferred from the MIGAL
Research Center in Qiryat Shmona (where it had
been stored since its arrival from Sweden)
to the Cosmic Ray Centers temporary offices
at Qatzrin and made available for research
utilization.