The future of balloons in cosmic-ray research

1972 ◽  
Vol 13 (2) ◽  
Author(s):  
B. Peters
Keyword(s):  

We shall discuss some of the main features of particle production in nucleon-nucleon collisions in the energy region from 30 to 10 6 GeV. The cosmic radiation provides us with a source of particles a small fraction of which have an energy far greater than any now available in the laboratory— or even projected in the future. The cosmic ray fluxes are such that one can hope to make a direct study of the interactions of particles whose energy is as high as 10 6 GeV. One can obtain the coarse features of these interactions, for example, the number, energy and angular distribution of mesons produced. Such information is of great interest in its own right; it also can be of great value in making decisions about the energy and nature of new accelerators.


2011 ◽  
Vol 01 ◽  
pp. 163-170
Author(s):  
CHIA-CHUN LU ◽  
GUEY-LIN LIN

Motivated by Pierre Auger results on the energy spectrum and the anisotropy of ultrahigh energy cosmic rays (UHECR), we study the spatial distributions of UHECR sources by fitting to the measured UHECR spectrum. We consider possible energy calibration effects in the Pierre Auger data for our analysis. We propose a local overdensity of UHECR sources which is testable in the future cosmic ray astronomy.


Author(s):  
Ralf Kaiser

Cosmic-ray muography uses high-energy particles for imaging applications that are produced by cosmic rays in particle showers in the Earth's atmosphere. This technology has developed rapidly over the last 15 years, and it is currently branching out into many different applications and moving from academic research to commercial application. As in any new sub-field of research and technology, the nomenclature of the field itself is still developing and has not settled yet as new aspects of the field are appearing and with them the terms to describe them. This overview of the field of muography is not going to focus on the physics, on the reconstruction algorithms or on the involved detector technology. Detailed papers on these aspects are included in this issue of Philosophical Transactions A and I will refer to them. Instead, I will give an overview of the field as it is now, in 2018, and try to give an idea of the future directions in this field as I see them. This article is part of the Theo Murphy meeting issue ‘Cosmic-ray muography’.


2019 ◽  
Vol 209 ◽  
pp. 01040
Author(s):  
Chiara Perrina

The High Energy cosmic-Radiation Detection (HERD) facility will be one of the space astronomy payloads on board the future Chinese space station. The ambitious aim of HERD is the direct detection of cosmic rays towards the “knee” region (~ 1 PeV), with a detector able to measure electrons, photons and nuclei with an excellent energy resolution (1% for electrons and photons at 200 GeV and 20% for nuclei at 100 GeV - PeV), an acceptance 10 times the one of present generation missions (~ 1 m2 sr), and long life-time (> 10 years). The primary objectives of HERD are the indirect search for dark matter particles and the precise measurement of energy distribution and composition of cosmic rays from 30 GeV up to a few PeV, determining the origin of the “knee” structure of the spectrum. Furthermore, HERD will monitor the high energy gamma-ray sky from 500 MeV, observing gamma-ray bursts, active galactic nuclei, galactic microquasars, etc. HERD will be composed of a homogeneous calorimeter, surrounded by a particle tracker and a plastic scintillator detector. Two possible trackers are under study: a 5-side tracker made of silicon strip detectors and a 4-side scintillating fiber tracker with a silicon strip top tracker. The total volume of HERD will be (2.3 × 2.3 × 2.6) m3 with a weight of about 4 t. The HERD design, perspectives, expected performances in terms of energy sensitivity and acceptance will be presented in this contribution.


1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).


1978 ◽  
Vol 48 ◽  
pp. 387-388
Author(s):  
A. R. Klemola
Keyword(s):  

Second-epoch photographs have now been obtained for nearly 850 of the 1246 fields of the proper motion program with centers at declination -20° and northwards. For the sky at 0° and northward only 130 fields remain to be taken in the next year or two. The 270 southern fields with centers at -5° to -20° remain for the future.


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