Variation of Compton Profiles of N2 with Increasing Pressures

Year 2016, Volume: 1 Issue: 2, 2 - 8, 31.12.2016

Ali Gürol , Erdem Şakar , Osman Yücel

Abstract

In
this study, it has been measured the Compton Profile of the Nitrogen gas at
different pressures by using a Compton Profile Spectrometer with an annular
Am-241 radioactive source, which emits 59.537 keV photons. The inelastic
scattered g-rays from gas molecules in a gas chamber have been measured
using a HPGe detector connected to the a Tennelec 244 Amplifier and MAESTRO MCA
Software.  The gas pressure had been set by
using a manometer before the measurements. The data have been corrected for all
environmental scattering effects, i.e. scattering from gas chamber’s walls,
collimators, and etc. Then, the Compton Profile of Nitrogen gases at five different
pressures have been determined using a Matlab Code. We found that the Compton
Profiles changes with increasing pressures.

Keywords

Compton Profile, Pressure, Nitrogen gas, Electron Momentum Distribution

Artan Basınç ile N2’nin Compton Profilelerinin Değişimi

Abstract

Bu çalışmada, 59.537 keV enerjili g-ışınları yayınlayan
bir Am-241 radyoaktif kaynağa sahip Compton Spektrometresi kullanılarak azot
gazının Compton Profilleri ölçüldü. Bir gaz odasına hapsedilmiş gaz
moleküllerinden inelastic olarak saçılmış g-ışınları Tennelec
244 Yükseltici ve MAESTRO MCA Programına bağlanmış bir HPGe dedektör
kullanılarak ölçüldü. Ölçümlerden önce gaz basıncı bir manometre ile ayarlandı.
Veriler, bütün çevresel saçılma etkileri için, gaz odasının duvarlarından,
kolimatörlerden, vs., saçılmalar gibi, düzeltildi.  Daha sonra, beş farklı basınçta azot gazının
Compton Profileleri Matlab’de yazılmış bir program ile belirlendi. Compton
Profile değerlerinin artan basınçla değiştiği belirlendi.

Keywords

Compton Profile, Basınç, Azot gazı, Elektron Momentum Dağılımı

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