Magnetic Field Map of Spinlab

This week I completed the Spinlab Magnetic Field Mapping Report, a 31-page LaTeX document outlining the motivation for mapping the magnetic field of the Spinlab, the process for building the components necessary for completing the mapping, and results from various mappings from 2016. This document will be very important for completing any future B-field mappings, especially once I ...

Righty Tighty, Lefty Loosey

The lab was confronted with a stuck knob on one of our Helium gas regulators. Many of the other lab members attempted to open the outlet valve to the regulator but that proved unsuccessful. I attempted to open the stuck valve as well, even using the strap wrench as shown. I had the thought that ...

HVPlotter in Python

Over the last week, I have developed a program in Python for quickly plotting data made from the exported data from the jhv4 labview program. The program has the user select which file they want to make plots from, and then opens the attached window. The user will then select the x-variable and y-variable they ...

Conditioning of HV Electrodes

This week we successfully approached the point of electrode conditioning with our high voltage system. In previous attempts, we were forced to stop short of reaching a high enough voltage due to cable failure–22 kV was the highest we could get. On Tuesday, we were able to reach 27.9 kV on our 30 kV power supply when our picoammeter ...

CUSTIPEN-IMP-PKU Workshop on Physics of Exotic Nuclei

I was asked to give a talk on “The Search for Electric Dipole Moments Using Octupole-Deformed Nuclei” @ the Workshop on Physics of Exotic Nuclei in Huizhou, Guandong, China. This is the first public talk I’ve given on our concept for a Protactinium-229 EDM search in the FRIB era. While in China, I also had a chance ...

Measuring the Yb Atomic Beam Flux

  On Monday, December 5th the SADiCS team led by Kristen Parzuchowski performed an improved Yb flux measurement. Several improvements were implemented including covering the measurement chamber with a non-reflective black foil to reduce stray light and conducting a more precise scan over wavelengths to find the resonance wavelength of Yb. This measurement took the ...

Fluorescence Spectrum of Impurities in Sapphire

  In the week of Dec. 5th a first analysis of the background of a sapphire substrate was performed. The measurements were performed be Evan Ryan, an undergrad working for the SADiCS project. The graph below shows the scattering and fluorescence response of impurities within the sapphire substrate when illuminated with light at a wavelength ...

Safety Interlock for HV Supply

This week is all about our electrode test station. We’ve made significant safety improvements and improvements in the sensitivity of our high voltage measurements. The first is the installation of our fancy new Interlock Chassis, which allows us to remotely shut down the power supply. It also automatically cuts power to the high voltage power supply in the event that one of ...

Demodulation Analysis of NMR Signals

The “Weekly Win” for the week of Nov. 21 was awarded to Jake Huneau for rewriting the program which uses a demodulation technique of analysis for the HeXe collaboration. The demodulation technique uses trigonometric identities and a digital lowpass filter to extract frequency and amplitude from the dataset. The benefit of this technique is that it creates ...

Emission Spectrum of 375 nm LED

The Weekly Win for the week of Nov. 14 was awarded the SADiCS team. The team led by undergraduate Evan Ryan focused on a detailed characterization of one of the light sources used for the Yb fluorescence measurement. This light source is an LED characterized by a central wavelength of 375nm. This LED is used as a ...

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