Characterization of a turbomolecular-pumped magnetic sector mass spectrometer

A Perkin Elmer MGA-1200, turbomolecular-pumped, magnetic sector, multiple gas analyzer mass spectrometer with modified inlet for fast response was characterized for the analysis of hydrogen, helium, oxygen and argon in nitrogen and helium background gases. This instrument was specially modified for the Vanderberg AFB SLC-6 Hydrogen Disposal Test Program, as a part of the Hydrogen Sampling System (H2S2). Linearity, precision, drift, detection limits and accuracy among other analytical parameters for each of the background gas were studied to evaluate the performance of the instrument. The result demonstrates that H2S2 mass spectrometer is a stable instrument and can be utilized for the quantitative analytical determination of hydrogen, helium, oxygen and argon in nitrogen and helium background gases

Duality of Illusion and Reality in Desai\u27s In Custody

In his article Duality of Illusion and Reality in Desai\u27s In Custody, Narinder K. Sharma analyses Anita Desai\u27s internal confrontation of choices. In the novel, Desai\u27s narration offers various options at every step and the author suggests that it becomes difficult to decide what actually should be done. The attempt is to personalize impersonal time and space thereby brings it into the domain of conflicting choices signifying an existential desire to manifest freedom. Going a step further, it can be deciphered that the individual desires to make an ideal choice to experience authenticity ; however, the desire of making an ideal choice results in the creation of psychic tension. Thus, for Desai, the subject often feels a psychic pull which signifies a lack, a void, or a possibility of something ideal left out or missed. In Sharma\u27s analysis of In Custody the contradiction that splits an individual apart as subjective reflection takes place with relation to making an existential choice