Lab-Wide Instrumentation Poster Session

Contribution List

10. A GEANT4 Simulation Framework for the Optimization of a CCD-based Diagnostics for Next Generation MeV Photon Sources

poster

Laser plasma accelerators generate GeV electrons with acceleration distances of a few centimeters. This technology enables compact Thomson scattering photon sources at energies of 1-10 MeV, which have applications in radiography, photo-fission and nuclear resonance fluorescence for nuclear nonproliferation and homeland security. Knowledge of the energy-angle distribution of the photon bunch is...

20. A Micromanufactured Diode Beamstop

poster

Many experimental techniques utilize highly concentrated beams of x-rays directed at samples of materials of different types. When x-rays interact with these samples, a portion of them are deflected by the sample materials. These deflected x-rays then travel to a detector, and experimenters use the patterns of deflected x-rays captured by the detector to obtain information about the...

16. A Novel approach to fiber connections for the Dark Energy Spectroscopic Instrument

poster

The Dark Energy Spectroscopic Instrument (DESI), which will be in- stalled on the Mayall telescope at Kitt Peak in 2018, plans to measure the spectra of more than 30 million galaxies and quasars to map the large scale structure of the universe to study Baryon Acoustic Oscillations (BAO). DESI simultaneously collects spectra from 5,000 objects using robotically-actuated fibers which enable the...

15. Acoustic Diagnostics for Superconducting Accelerator Magnets

poster

Over the past few decades, acoustic measurement technology has emerged as a versatile & non-invasive tool for structural analysis, failure detection, and process control. We present acoustic emission sensing and data analysis techniques developed by the Superconducting Magnet group for monitoring mechanical disturbances in high-field superconducting accelerator magnets. Localized movements and...

7. Analyzing Organic Liquid for use in TPCs to Detect Antineutrinos

poster

The measurement of ionization electrons in organic liquids has the potential to allow detection of antineutrinos with unprecedented energy and spatial resolution. Previous experience with the ionization of organic liquids suggested the performance of these organic liquids was highly sensitive to trace impurities. We developed a purification process and test chamber to assess these concerns. ...

2. Anion fragment momentum imaging

poster

Electron attachment involves a resonant collision of a low energy (typically 0-15 eV) electron with a molecule, resulting in a metastable anion that dissociates or decays by autodetachment. Both of these processes drive a system away from it's equilibrium state and the former process, dissociative electron attachment results in energetic anionic and neutral fragment molecules. The anionic...

22. Autonomous mm-Scale RFID Sensors for High Density In-Situ Soil Monitoring

Better understanding of plant and microbial communities would be dramatically enabled by an ability to monitor their behavior in-situ, dynamically and in a variety of environments. To address this need, we are designing a mm-scale autonomous sensor platform that can incorporate on-chip and post-processed sensors to be deployed in order to monitor complex soil systems. The sensors are powered...

30. Characterization of Single Event Latchup Cross-Section for ALPIDE

We investigated the probability of latchup in a prototype of ALPIDE (ALICE PIxel DEtector), a silicon pixel detector proposed for use in the ALICE inner tracking system. This sensor uses MAPS (Monolithic Active Pixel Sensors) technology and features integrated electronics. Single Event Latchups (SELs) are a common problem with CMOS technology. When a heavy ion travels through the...

8. Committing SINS at the ALS: Broadband Synchrotron Infrared Nano-Spectroscopy

poster

By combining scattering-type-scanning near-field optical microscopy (s-SNOM) with infrared light from a synchrotron source, synchrotron infrared nano-spectroscopy (SINS) enables sensitive molecular and phonon vibrational chemical imaging, spanning the mid- and far-infrared regions (300-5000 cm-1) with <25 nm spatial resolution. This highly powerful combination provides access to a...

25. Data Intensive Super Computing at NERSC

poster

The Data and Analytics Group at NERSC (National Energy Research Scientific Computing Center) offers a wide range of services intended to facilitate scientific data analysis. We have tools and expertise in data management, analysis, transfer, visualization, as well as sharing data via scientific web portals and workflow tools. An overview of the data-focused services at NERSC will be presented.

5. Electronic Noise in High Purity Germanium Radiation Detectors

poster

A unique class of physics experiments requires the detection of low energy depositions in large volume radiation detectors. The high purity germanium (HPGe) detector remains the leader in energy resolution achievable from kg-scale detectors. This poster will present the fundamental sources of electronic noise which limit the low energy threshold in HPGe detectors. Improvements will be...

13. Exploring the boundaries of low-energy, real-time, data-intensive processing with neuromorphic computing

poster

Neuromorphic architectures like IBM TrueNorth promise to deliver massively data parallel computing combined with unprecedented energy efficiency, potentially offering an avenue for next generation high-performance systems in the post-Moore’s law era. To better understand the range of problems to which neuromorphic computing is advantageous, we have assembled a diverse portfolio of real-time,...

29. Fast Beam Chopper

A fast beam chopper is designed and commissioned for the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory. The Cyclotron accelerates protons through uranium with frequency of operation from 5.5 MHz to 16.5 MHz. The new chopper uses a fast square wave pulser from BEHLKE and is connected to two parallel electrostatic deflector plates that can be biased to +/- 1000V. The new chopper is...

0. FE65_P2: Prototype Pixel Readout Chip in 65nm for HL-LHC Upgrades

poster

FE65_P2: a mixed-signal ASIC test chip produced in 65nm CMOS as part of an R&D effort by the RD53 collaboration is presented here. RD53 was established to design the next generation of readout chips for hybrid pixel detectors to cope with the demanding conditions in the HL-LHC at CERN and implementations of its findings will be used in the ATLAS and CMS detector upgrades. The FE65_P2...

27. Gas Cell For In Situ Soft X-ray Absorption Spectroscopy of Materials

A simple, portable gas cell design for soft X-ray absorption spectroscopy of materials during gas interaction is presented. The cell can be attached to the rear port of any suitable beamline, and is designed to be loaded and sealed within a glove box to enable the study of air- or moisture-sensitive materials. The cell operates in transmission-absorption mode and can handle gas pressures of...

21. HIPSTER: A 24-channel low-noise digitizer ASIC with multi-Gb/s serial data interface

HIPSTER (High-Speed Image Processing System Targeted for Electron Readout) is a noise-optimized digitizer ASIC primarily intended for reading out low-noise, high-speed detectors while reducing physical interconnect. The front end of the ASIC comprises 24 analog channels each with programmable gain and a 12-bit, 75 MS/s ADC. The back end of the ASIC comprises six 4.5 Gb/s serial transmitters...

9. In situ environmental cells for Hard X-ray micro- Tomography on ALS-beamline 8.3.2

poster

Hard x-rays can penetrate several mm of material allowing the imaging of sample interiors. The microtomograpy instrument at beamline 8.3.2 allows for 3D imaging of material samples up to several mm in diameter in a variety of in-situ sample cells that mimic application specific- often extreme - conditions for the material. 3D imaging in realistic and extreme environments elucidates the details...

4. Instrumentation and Diagnostics for Bi-Alkali Photocathode Production

poster

Bi-Alkali photocathodes have been widely used in photomultiplier tubes and night vision equipment. They have high quantum efficiency (QE) and low thermal emittance in the visible light spectrum and are of crucial importance to Free Electron Laser (FEL) based light sources. But the photocathode production process has not been well defined, and performance of cathodes can vary wildly when...

14. Instrumentation of high-density sensors and electronics for brain recordings

poster

Our goal is to demonstrate a high spatio-temporal resolution system to record neural activity >1000 channels that could be translatable to humans, and directly scaled to >10000 channels. Current state-of-the-art systems have electrodes with many mm spacing, and discrete electronics, or integrated circuits with ≲100 channels per chip. Microfabrication techniques allow very high-density...

31. Intense pulsed ion beams with NDCX

Recent experiments and capabilities with the Neutralized Drift Compression Experiment will be described.

19. Magnet Test Facility Upgrades at LBNL

poster

The Magnet Test Facility (MTF) at LBNL belongs to the Superconducting Magnet Group, and serves a core mission of testing performance characteristics of high field superconducting accelerator magnets. Several magnet parameters, such as maximum quench current, training behavior, and field quality are tested and characterized at MTF. The facility is currently being upgraded to expand the magnet...

1. Multi-Color Gas Phase Spectroscopy and Dynamics

poster

We have recently developed several new experimental approaches to explore sub-picosecond molecular dynamics using synchrotron radiation. Following the manipulation of electronic excited states of a gaseous target using two or more laser pulses, we probe the final states using soft x-ray photons as a function of x-ray energy, laser pulse energy and wavelength, laser-laser time delay and...

12. Next Generation Cosmic Microwave Background Polarimetry Experiment

poster

Cosmic Microwave Background is weakly polarized. A curl component of the polarization, the B-mode, carries wealth of information such as sign of inflation, property of neutrino and evolution of large scale structures. Searches for the B-mode polarization in the CMB are going through an interesting period. Past year, CMB experiments reached sensitivity to make a detection of B-mode from weak...

11. Position Sensitive HPGe Detectors Using Proximity Charge Sensing

poster

Electrode segmentation is a necessity to achieve position sensitivity in semiconductor radiation detectors. Traditional segmentation requires high granularity and increasingly smaller electrode sizes. These electrodes are complicated to fabricate and many electrodes are required in order to instrument large detector areas, each with their own readout electronics. To simplify the fabrication...

32. Quantitative cellular imaging of Soft X-Ray tomography

poster

Soft X-ray tomography (SXT) reveals cellular structures based on the unique organic composition of each structure and, because of the short wavelengths of light used for imaging, achieves nano-scale spatial resolution. The absorption properties of these soft x-rays, which are in the so-called “water window” (284 eV , 4.4 nm to 543 eV, 2.3 nm), enable high contrast images because water doesn’t...

28. Radiological Multi-sensor Analysis Platform

Gamma-ray spectroscopy and imaging are well-established methods of detecting radioactive sources in a variety of scenarios. However, the natural gamma-ray background can significantly reduce detection sensitivity, especially when the source is weak and the background varies substantially. Mobile detection platforms, in particular, must contend with background that is not necessarily known or...

3. Real-Time Volumetric Gamma-Ray Imaging for General Search and Mapping Scenarios

poster

This work explores the coupling of computer vision algorithms for real-time scene reconstruction with mobile gamma-ray imaging platforms. These algorithms, solutions to a class of problem known as simultaneous localization and mapping (SLAM), provide estimates of the location and orientation (i.e. pose) of the system, as well as a point-cloud model of the surrounding scene as the sensor...

23. Status of the STAR Event Plane Detector (EPD)

The first phase of Beam Energy Scan (BES) program of the Relativistic Heavy Ion Collider (RHIC) was an exploration of the QCD phase diagram. The second phase is an exploration for criticality and phase transition signals. For the Solenoidal Tracker at RHIC (STAR) a quantitative understanding of these signals requires an increase in statistics in for 7, 11, 14, and 19GeV AuAu collisions as...

24. The MAJORANA low noise low background front-end electronics

The Majorana Demonstrator will search for the neutrinoless double beta decay (ββ(0ν)) of the isotope 76Ge with a mixed array of enriched and natural germanium detectors. One of its major goals is to demonstrate a path forward to achieving a background rate at or below 1 cnt/(ROI-t-y) in the 4 keV region of interest (ROI) around the 2039-keV Q-value of the 76Ge ββ(0ν)-decay. Such a requirement...

26. The MAPS-based PXL detector for the STAR Experiment

poster

The PiXeL detector (PXL) of the STAR experiment at RHIC is the first application of the state-of-the-art thin Monolithic Active Pixel Sensors (MAPS) technology in a collider environment. The PXL detector was completely designed, fabricated and assembled at LBNL, and the RNC group is still the main responsible for maintenance, operations and data analysis. The PXL, together with the...

6. Towards time-resolved ambient-pressure X-ray photoelectron spectroscopy

poster

Light-induced charge carrier separation, transport, trapping and recombination at semiconductor electrodes are of central importance for the functioning of many photo-electrochemical devices like dye-sensitized solar cells. Here we present a setup that is capable of capturing the dynamics of these processes directly in the time domain, with element specificity and under realistic working...