Analysis of digital data from a multichannel pulse height analyzer on gamma ray total absorption peaks in activation analysis

Abstract

Two problems concerning the digital method of examination of gamma-ray spectrograms are discussed in the present paper. A modification of the known Covell's formula improves the precision of determinations based on poor counting statistics and the detection and the evaluation of the systematic error which is caused by the curvilinear character of background under total absorption peaks. Both the problems have been studied assuming that the stability

Y-Spect: A Multi-Method Gamma Spectrometry Analysis Program

“…A different approach in locating the peak position was proposed by Sterlinski [8,9], which is not based on second derivative values, but on the peak area and its standard deviation, as follows: …”

High-sensitivity CRDS absorption spectroscopy of acetylene between 5851 and 6341 cm−1

“…A peak list was constructed for each diode laser recording, using a homemade LabVIEW program based on the method described in Ref. [21]. In the adopted pressure conditions, the line profile is mostly Doppler limited (note that the DFB line width, of about 2 MHz full width at half-maximum (FWHM), is much smaller than the Doppler width, of about 435 MHz FWHM).…”

Determination of ozone in the 5-ppb to 100-ppb range by a modified Saltzman technique

“…Even though a large number of reagents are potentially useful for determination of hafnium, only a few reagents have been studied in detail, such as arsenazo(III) (2), chromeazurol S (3), 6,7-dihydroxy-2,4-diphenylchroman (4), methylthymol blue (5), and xylenol orange (6)(7)(8)(9)(10). 4-(2-Pyridylazo)resorcinol, PAR, was investigated for determination of zirconium(IV) (11) in these laboratories.…”