Spectral Lines of Curium from 3100 A to 4200 A (open access)

Spectral Lines of Curium from 3100 A to 4200 A

Fifty-four spectral lines of curium are listed together with estimated intensities. A brief description of the manner of taking the spectra and of measuring the lines is given. Three separate samples of curium, in all seven micrograms, were submitted for spectrochemical analysis. The samples in acidic solution (HCl) were evaporated on copper electrodes and analyzed as outlined for the copper spark method. An Applied Research Laboratories spark source was used. The spectra were taken on a Baird Associates spectrograph of the modified Eagle type which has a dispersion of 5.6 A/mm in the first order. Spectrum Analysis photographic plates were used and were processed according to the manufacturer's recommendations. The plates were placed in the projection comparator (also an Applied Research Laboratories Unit) and the lines measured using the scale associated with the projection screen. The copper lines of the spectra were used as a wavelength standard. In all 54 lines which we feel can be attributed to curium were found. These, together with an estimated intensity based on an arbitrary 1 to 10 scale, are listed in Table 1. Due to the high alpha-activity of curium special care had to be exercised in handling the samples. In this case …
Date: April 7, 1948
Creator: Conway, John G. & Moore, Milton F.
Object Type: Report
System: The UNT Digital Library
Spectral Lines of Curium from 3100 A to 4200 A (open access)

Spectral Lines of Curium from 3100 A to 4200 A

Abstract: Fifty-four spectral lines of curium are listed together with estimated intensities. A brief description of the manner of taking the spectra and of measuring the lines are given.
Date: April 7, 1948
Creator: Conway, John G. & Moore, Milton F.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: V-535 (open access)

Texas Attorney General Opinion: V-535

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Authority of Rural High School Districts to employ a delinquent tax collection attorney.
Date: April 7, 1948
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History