CaGaS Phase II

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CaGaS Phase II is a repeat of capture gamma energy spectroscopy experiments performed during the summer of 2021 in the ISU clean room. The purpose of revisiting the capture gamma experiment is to use a new, higher activity 252Cf source (U2-622) and to investigate different thicknesses of Gadolinium foils and the effect on the high energy photon flux produced. This work is being performed in support of the main conversion process for the In-Situ Positron Annihilation Spectroscopy experiment being designed and performed by INL staff and external collaborators.

I) CaGaS Phase II Physical Parameters



Radioactive Sources

CH Cf252 Sources

CH Calibration Sources

Electronics Chain


II) Neutron Attenuation Measurements

Discriminator Dual Pulsing Investigation

CH Discriminator Dual Pulsing

Initial Measurements

CH He3 Attenuation Measurements

Revisited Measurements

CH He3 Attenuation Measurements: 3 Different Cf252 Sources

III) CaGaS Phase I Expansion

CaGaS Phase I Gadolinium

CaGaS Phase I Cadmium

IV) HPGe Measurements

PAS HPGe Detector

CH HPGe Efficiency

Previous Work

CaGaS Phase I

Useful Resources

CH ROOT Nonuniform Binning




CH NIM Bin Repair

Previous Page

PAS Experiment