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Full-Text Articles in Physical Sciences and Mathematics
An Investigation Of The Collision Lengths Of Penetrating-Shower-Producing Radiation In Various Materials, James Francis Kenney
An Investigation Of The Collision Lengths Of Penetrating-Shower-Producing Radiation In Various Materials, James Francis Kenney
Physics & Astronomy ETDs
The purpose of this paper is to compile and tabulate some of the experimental data that have been obtained on penetrating showers, and to compare these data with the results that should be expected from the various theories that have been advanced.
On Air Density Measurements Using The Alpha-Particle Range Method, Gus Tom Zorn
On Air Density Measurements Using The Alpha-Particle Range Method, Gus Tom Zorn
Physics & Astronomy ETDs
The density of the air is in general determined from a knowledge of the pressure and temperature by applying the ideal gas law. This law may be stated in the following for; p=MP/TR, where p is the density of the air in gm/cm3, M is the gram molecular weight, P is the pressure in dynes/cm2, T is the temperature in degrees kelvin and R is the universal gas constant in ergs per degree absolute for one mole. This method is also used in the determination of the air density as a function of the height in …
Experiments On The Life Of Self-Quenching Geiger Mueller Counters, Raymond C. Opperman
Experiments On The Life Of Self-Quenching Geiger Mueller Counters, Raymond C. Opperman
Physics & Astronomy ETDs
Because of the several superior properties of counters containing organic vapor as a quenching agent, it is desirable to extend the life of such counters. It is, therefore, of interest to determine the relative importance of factors which limit their useful life. It is also worthwhile to further the investigation of counters containing an inorganic gas as a quenching agent.
An Azimuth-Stabililzed Balloon Platform, Alfred H. Spano
An Azimuth-Stabililzed Balloon Platform, Alfred H. Spano
Physics & Astronomy ETDs
In the study of Zodiacal Light, an interesting task is the determination of the intensity and the position of this glow on the celestial sphere. The problem of photographing this phenomenon from the earth’s surface has been hampered generally by the inevitable presence of the atmosphere between the camera and the object. However, it is expected that at the height of some thirty kilometers above the earth, the atmospheric haze will be reduced enough so that pictures of the zodiacal region may be obtained without significant absorption. To accomplish this, it is necessary to keep the balloon-borne camera pointed in …