Author: Robert E. HuffmanPublisher:
ISBN:
Category : Afterglow (Physics)
Languages : en
Pages : 12
Book Description
Helium Continuum Afterglow in the Vacuum Ultraviolet
Author: Robert E. HuffmanPublisher:
ISBN:
Category : Afterglow (Physics)
Languages : en
Pages : 12
Book Description
Helium Continuum Afterglow in the Vacuum Ultraviolet
Author: Robert E. HuffmanPublisher:
ISBN:
Category : Afterglow (Physics)
Languages : en
Pages : 0
Book Description
A Study of the Generation of Vacuum Ultraviolet Radiation from Discharges in Helium
Author: Carl Clifford GarberPublisher:
ISBN:
Category : Helium
Languages : en
Pages : 494
Book Description
New Excitation Unit for the Rare Gas Continua in the Vacuum Ultraviolet
Author: Robert E. HuffmanPublisher:
ISBN:
Category : Far ultraviolet radiation
Languages : en
Pages : 16
Book Description
Information Circular
Author: Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 930
Book Description
Wave Phenomena in Ionized Gases
Author: Cap HaskellPublisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 56
Book Description
A Study of Band Edge Distortion in Heavily Doped Germanium
Author: Freeman D. Shepherd (Jr.)Publisher:
ISBN:
Category : Energy-band theory of solids
Languages : en
Pages : 98
Book Description
Details of the energy band structure of degenerate n-type germanium were determined by analysis of fine structure in the 4.2K volt-ampere characteristic of germanium tunnel diodes. No shift in the relative energy of the conduction band minima was observed. The band edge is found to be exponentially distributed with 1/e energies of the order of 10 MeV. There appears to be an ordering mechanism among the group V impurity atoms used as substrate dopants. (Author).
Ferrous Ammonium Sulfate - Cupric Chloride Solutions for Dosimetry of a Kilocurie Cobalt-60 Source
Author: E. A. BurkePublisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 26
Book Description
Aqueous solutions of ferrous ammonium sulfate with cupric chloride were studied as a means for determining the uniformity of the dose rate around a multikilocurie cylindrical array of cobalt-60. Ferric ion was measured spectrophotometrically at 305 millimicrons. The solution selected to satisfy the requirements for dosimetry contained 0.0005 M ferrous ammonium sulfate and 0.005 M cupric chloride in 0.001 N sulfuric acid. Spectrophotometric measurements of ferric ion were made in solutions brought to 0.15 N acid concentration, instead of the conventional 0.8 N, in order to minimize spurious oxidation. The molar extinction coefficient at this normality proved to be the same as that in 0.8 N solutions. The G value, as compared to the standard ferrous-ferric dosimeter, was 0.65. Using these solutions, no detectable variation in dose rate was found at symmetrically equivalent positions at the center of the cobalt-60 source. The average dose rate at each end of the cylindrical array proved to be 12 percent lower than that at the center. The dose rate was also less uniform at the ends, varying by = 4 percent from point-to-point. At a distance of fifteen inches from the center of the source array, the dose rate decreased as the square of the distance. (Author).
Microwave Measurements of Partially Coherent Fields
Author: J. L. PoirierPublisher:
ISBN:
Category : Chickens
Languages : en
Pages : 20
Book Description
A Method for Estimating Atmospheric Noise Amplitudes and Phase Errors in Quenched High-Q Receiving Circuits
Author: E. A. LewisPublisher:
ISBN:
Category : Atmospheric electricity
Languages : en
Pages : 50
Book Description
Very narrow-band quenched filters used for studying VLF radio signals differ from conventional narrow-band circuits in that both signal and atmospheric noise impulses cause only brief quasi-sinusoidal outputs instead of a prolonged ringing. The random overlapping of these short noise and signal bursts can cause errors in phase measurements. It is shown that the distribution of phase errors can be calculated from the amplitude distribution of the output noise envelope. The properties of the phase distribution are discussed in detail, the computation required in the general case is illustrated by means of a numerical example. A simple 'time-sequential' method for experimentally obtaining typical amplitude distributions is suggested. (Author).