SEM Analysis of Wire from Aging Test #7 at Duke University

Slides:



Advertisements
Similar presentations
The Periodic Table Dmitri Mendeleev –designed periodic table in which the elements were arranged in order of increasing atomic mass Henry Moseley –designed.
Advertisements

1 Adhesion and Etching of Nickel-Chromium Tiecoat on Adhesiveless Flexible Laminate by Bergstresser, T., Hilburn, R. and Wang, J. Gould Electronics Gould.
Focused ion beam (FIB) 1.Overview. 2.Ion source and optics. 3.Ion-solid interaction, damage. 4.Scanning ion beam imaging. ECE 730: Fabrication in the nanoscale:
FSC-5178 FIGURE 1. PHOTOGRAPHS OF FRONT AND BACK OF SUB-PANEL AFTER SOLDER PASTED WITH SAC305 AND REFLOWED a). Front side of sub-panel b). Back side of.
26 September 2000 High Voltage Plates and Capacitors Jack Fowler.
299 Analysis For data: 299step.xlsx, 299.pxp. Summary of Nb (15nm)/Al 2 O 3 (15nm Pad;4-0nm wedge)/Co(30nm) 2.Try to etch Nb with CF 4 3.Nb etch.
Study of sputtering on thin films due to ionic implantations F. C. Ceoni, M. A. Rizzutto, M. H. Tabacniks, N. Added, M. A. P. Carmignotto, C.C.P. Nunes,
Y. Ueda, M. Fukumoto, H. Kashiwagi, Y. Ohtsuka (Osaka University)
X Ray Flouresence Analysis (XRF). XRF X-Ray Fluorescence is used to identify and measure the concentration of elements in a sample X-Ray Fluorescence.
University of Illinois Optical and Discharge Physics ETCH PROFILES IN SOLID AND POROUS SiO 2  Solid  Porosity = 45 % Pore radius = 10 nm  Porous SiO.
TEM Prep using FIB and Kleindiek Micro-Manipulator General Reminders, Tips and Tricks When in FIB view, work quickly to do what is needed and then freeze.
26 September 2000 Wire Procurement and Wire Joint Production Jack Fowler.
May’02, TRT Workshop Jack Fowler – Duke University SEM Analysis of Radiation Test Samples at Duke University Jack Fowler.
Chiho Wang ATLAS TRT Duke University CERN, Feb TRT Barrel assembly status & schedule Feb. 9, 2005.
 Electricity is caused by the flow (or net movement) of Electrons  Electric Current – the rate that positive charges flow in a circuit › Actually a.
First results of an aging test of a full scale MWPC prototype for the LHCb muon system Workshop on “Aging Phenomena in Gaseous Detectors”, October 2-5.
MICROSCOPES As tools for the biologist. How are microscopes useful? They are used to extend human vision by making enlarged images of objects. They are.
May 2001, Istanbul Workshop High Voltage Plates and Capacitor Status Jack Fowler.
NANO 225 Micro/NanoFabrication Electron Microscopes 1.
31 May 2006Update ageing measurements at NIKHEF - LHCb week - Niels Tuning 1/37 Update ageing measurements at NIKHEF 31 May 2006 Niels Tuning, Gras van.
Building A Co-Cure Cable Thomas Johnson
Control of Carbon Nanotube Nucleation Rate with a Hydrogen Beam Plasma Paolo Santos 1, Dorothée Alsentzer 3, Thomas B. Clegg 2,3, Sergio Lemaitre 2,3,
Feb ’02, TRT Meetings Jack Fowler – Duke University SEM Analysis of Wire from Aging Test #5 Jack Fowler.
May’02, TRT Workshop Jack Fowler – Duke University SEM Analysis of Wire from Aging Test #7 at Duke University Jack Fowler.
Seog Oh/ Duke University/Oct, 2002 TRT/ ATLAS week at CERN Test of the cleaning gas mixtures.
30 October 2003V.Souvorov / B.Schmidt - MWPC PRR CERN site1 MWPC Aging Studies Outline: Overview of aging tests done Results in terms of gain variations.
Thin Oxides The new frontier. Volume 43, No Special Issue on Ultrathin Oxides.
1 of 13 Mark Tillack, John Pulsifer, Sam Yuspeh, Matt Aralis HAPL Project Meeting October 2008 Madison, WI Progress on GIMM mirror development and.
Centrifugal Barrel Polishing at Fermilab (Tuesday, December 6th at 10:20) Tesla Technology Collaboration IHEP, Beijing December 5 th -8 th, 2011.
Date of download: 6/28/2016 Copyright © 2016 SPIE. All rights reserved. (a) General concept of the colorimetric sensor of ammonia: 1—light emitter, 2—input.
Agenda 4/16/2013 Turn in Test Corrections Part 1 – Rates of Reaction Slip Quiz part 1 Objectives Study Guide – switch and grade – to turn in. Related Released.
Ohm’s Law Electronic Training Course Slide# 1. Slide# 2 Ohm’s Law Review of Current, Voltage and Resistance An electric current is the flow of electrons.
Wire Procurement and Wire Joint Production
(Chapter 7) CHEM–E5225 Electron microscopy
Neutral Current Interactions in MINOS Alexandre Sousa, University of Oxford for the MINOS Collaboration Neutrino Events in MINOS Neutrino interactions.
Topic 9 Oxidation and Reduction.
Electricity and Magnetism
Preparation Stationary Sample Holders
Wire Quality Jack Fowler.
Equipotential Lines Are Topographical Maps
AP BIOLOGY Cell Structure INTRO
An extensive aging study of bakelite RPC
The Refraction of Light 1
O.R.KAVITHA/ CE 312/ DSS WELDING
Performance Indicator 8.E.4B.6
Jack Fowler Duke University Spain Workshop
METALLURGICAL MICROSCOPE
Long irradiation at the side
Volume B Chapter 18 Electricity.
WARM UP Write configurations for the following elements, using noble gas notation: S Co Au Cs.
大強度
Chapter 3 Section 2.
Module Production and Testing at Duke
Charge Coupled Device Advantages
Palladium Coated Shells
VLSI System Design LEC3.1 CMOS FABRICATION REVIEW
Section 1 – Wind Erosion Wind contains energy. It an turn a wind turbine or move a sailboat. It can also erode the land. Sand vs. Dust Sand is loose.
Aprismatic Enamel The outer surface layer of enamel (20-100m primary teeth and 20-70m secondary teeth) is aprismatic. The crystallites are aligned at.
When this happens... We see this... 12/6/2018 Steve Wotton.
VISUAL AIDS for instruction in VACUUM TECHNOLOGY AND APPLICATIONS
by Lidong Qin, Sungho Park, Ling Huang, and Chad A. Mirkin
Rates of Reaction Aim: To revise the 4 factors that affect rates
B.Satyanarayana, TIFR, Mumbai For INO Collaboration
STATIC CHARGES I OR C? BATTERIES CURRENT CIRCUITS SCIENTISTS.
Test of the cleaning gas mixtures.
University of Rome II “Tor Vergata”
The Refraction of Light 1
Electric Circuits Ch 17, section 4.
MICROSCOPES.
Nuclear invaginations observed in thin sections are 3D tunnels and crevices, as shown by FIB-SEM and STORM. (A) In thin section TEM, large nuclear invaginations.
Presentation transcript:

SEM Analysis of Wire from Aging Test #7 at Duke University Jack Fowler

Module Test Layout Jack Fowler, Duke HEP

Duke Wire Samples Analyzed Xe-CO2 gas volume Wire 14 – Production wire with glass joint Xe-CF4-CO2 gas volume Wire 19 - Production wire with glass encapsulated joint Wire 20 - Production wire with polyimide joint Wire 22 - Production wire with no joint Wire 23 - Production wire with PEEK joint Wire 31 – Pre-series wire with no wire joint None of the wires shown were cleaned prior to installation into chamber Wire analysis Performed at Analytical Instrumentation Facility at North Carolina State University Jack Fowler, Duke HEP

Wire 14 Glass Wire Joint Gas Volume - Xe-CO2 Current - 14.8 A Charge ~ 2.5 to 3.0 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Light deposits of Na and Cl Jack Fowler, Duke HEP

Wire 19 Glass Encapsulated Wire joint Gas Volume - Xe-CO2 -CF4 Current - 16.6 A Charge ~ 2.4 to 2.9 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Few deposits Jack Fowler, Duke HEP

Wire 20 Polyimide Wire Joint Gas Volume - Xe-CO2 -CF4 Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr No visible change Jack Fowler, Duke HEP

Wire 14 Segment 4 Gas Volume - Xe-CO2 Glass Wire Joint Current - 14.8 A Charge ~ 2.5 to 3.0 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr No deposits Jack Fowler, Duke HEP

Wire 14 Segment 5 Gas Volume - Xe-CO2 Glass Wire Joint Current - 14.8 A Charge ~ 2.5 to 3.0 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Jack Fowler, Duke HEP

Wire 14 Segment 5 Gas Volume - Xe-CO2 Glass Wire Joint Current - 14.8 A Charge ~ 2.5 to 3.0 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Fine Deposits are Na and Cl Jack Fowler, Duke HEP

Wire 19 Segment 4 Gas Volume - Xe-CO2 -CF4 Glass Encap Wire Joint Current - 16.6 A Charge ~ 2.4 to 2.9 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Gold etching and removal Jack Fowler, Duke HEP

Wire 19 Segment 4 Gas Volume - Xe-CO2 -CF4 Glass Encap Wire Joint Current - 16.6 A Charge ~ 2.4 to 2.9 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Gold etching and removal Notice the loss of surface definition and grain boundaries Jack Fowler, Duke HEP

Wire 19 Segment 5 Gas Volume - Xe-CO2 -CF4 Glass Encap Wire Joint Current - 16.6 A Charge ~ 2.4 to 2.9 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Gold etching and removal Jack Fowler, Duke HEP

Wire 19 Segment 5 Gas Volume - Xe-CO2 -CF4 Glass Encap Wire Joint Current - 16.6 A Charge ~ 2.4 to 2.9 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Gold etching and removal Jack Fowler, Duke HEP

Wire 20 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Gold etching and removal Jack Fowler, Duke HEP

Wire 20 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Gold etching and removal Again loss of surface definition Jack Fowler, Duke HEP

Wire 20 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Area show at 2 kV beam energy Jack Fowler, Duke HEP

Wire 20 Segment 5 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Surface is covered with deposits Jack Fowler, Duke HEP

Wire 20 Segment 5 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Pores in surface Faint grain boundaries still present Deposits are mainly Au Jack Fowler, Duke HEP

Wire 20 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Discolored region near wire joint ~700 m Jack Fowler, Duke HEP

Wire 20 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Here is the section where the transition occurs Jack Fowler, Duke HEP

Wire 20 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Very heavy gold damage This affect was seen on both sides of the wire joint. Jack Fowler, Duke HEP

Wire 22 Segment 4 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Notice large regions where it appears that gold surface is uneven, possibly islands removed Jack Fowler, Duke HEP

Wire 22 Segment 4 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores All surfaces appear in the same condition Jack Fowler, Duke HEP

Wire 22 Segment 5 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores and islands Jack Fowler, Duke HEP

Wire 22 Segment 5 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current - 15.4 A Charge ~ 2.3 to 2.7 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Jack Fowler, Duke HEP

Wire 23 Segment 3 Gas Volume - Xe-CO2 -CF4 PEEK Wire Joint Current - 7.4 A Charge ~ 0.8 to 1.0C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Fine deposits Grain definition is reduced Jack Fowler, Duke HEP

Wire 23 Segment 3 Gas Volume - Xe-CO2 -CF4 PEEK Wire Joint Current - 7.4 A Charge ~ 0.8 to 1.0C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Fine deposits Grain definition is reduced Jack Fowler, Duke HEP

Wire 23 Segment 4 Gas Volume - Xe-CO2 -CF4 PEEK Wire Joint Current - 7.4 A Charge ~ 0.8 to 1.0C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Fine deposits Grain definition is reduced Jack Fowler, Duke HEP

Wire 23 Segment 5 Gas Volume - Xe-CO2 -CF4 PEEK Wire Joint Current - 7.4 A Charge ~ 0.8 to 1.0C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Fine deposits Grain definition is reduced Jack Fowler, Duke HEP

Wire 31 Segment 4 Wire - thin plated preseries Gas Volume - Xe-CO2 -CF4 Current - 8.9 A Charge ~ 1.2 to 1.5 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Large pores Heavy gold damage Jack Fowler, Duke HEP

Wire 31 Segment 7 Wire - thin plated preseries This region was visibly darkened during removal Gas Volume - Xe-CO2 -CF4 Current - 8.9 A Charge ~ 1.2 to 1.5 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Small deposits Jack Fowler, Duke HEP

Wire 31 Segment 7 Wire - thin plated preseries This region was visibly darkened during removal Gas Volume - Xe-CO2 -CF4 Current - 8.9 A Charge ~ 1.2 to 1.5 C/cm Exposed Time ~ 1680 hrs Target Flow Rate ~ 15cc/hr Small deposits of F Jack Fowler, Duke HEP

IU Wire Samples Analyzed Xe-CO2 gas volume Wire 2 – Production wire with polyimide joint Xe-CF4-CO2 gas volume Wire 18 - Production wire with no joint Wire 19 - Production wire with polyimide joint Wire 39 - Production wire with polyimide joint None of the wires shown were cleaned prior to installation into chamber Wire analysis Performed at Analytical Instrumentation Facility at North Carolina State University Jack Fowler, Duke HEP

IU Wire 2 Segment 1 Gas Volume - Xe-CO2 Polyimide Wire Joint Current – 1.4 A Charge ~ 3.3 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr C deposits Jack Fowler, Duke HEP

IU Wire 2 Segment 1 Gas Volume - Xe-CO2 Polyimide Wire Joint Current – 1.4 A Charge ~ 3.3 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr C deposits and Pores Fine white deposits Jack Fowler, Duke HEP

IU Wire 2 Segment 4 Gas Volume – Xe-CO2 Polyimide Wire Joint Current – 1.4 A Charge ~ 3.3 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr C deposits Jack Fowler, Duke HEP

IU Wire 2 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.4 A Charge ~ 3.3 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr Few pores Good surface grain definition Jack Fowler, Duke HEP

IU Wire 2 Segment 7 Gas Volume - Xe-CO2 Polyimide Wire Joint Current – 1.4 A Charge ~ 3.3 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr More C deposits than in earlier segments Jack Fowler, Duke HEP

IU Wire 2 Segment 7 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.4 A Charge ~ 3.3 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr More C deposits than in earlier segments Loss of grain definition from segment 4 Jack Fowler, Duke HEP

IU Wire 18 Segment 4 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current – 1.7A Charge ~ 2.4 C/cm Exposed Time – 408 hrs Target Flow Rate ~15 cc/hr Large C deposits Jack Fowler, Duke HEP

IU Wire 18 Segment 5 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current – 1.7A Charge ~ 2.4 C/cm Exposed Time – 408 hrs Target Flow Rate ~15 cc/hr Large C deposits Some large pores Jack Fowler, Duke HEP

IU Wire 18 Segment 5 Gas Volume - Xe-CO2 -CF4 No Wire Joint Current – 1.7A Charge ~ 2.4 C/cm Exposed Time – 408 hrs Target Flow Rate ~15 cc/hr Some loss of grain definition Jack Fowler, Duke HEP

IU Wire 19 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.0 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr C deposits Some small pores Surface is smoother than wire 18 Jack Fowler, Duke HEP

IU Wire 19 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.0 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr Slight decrease in grain definition Some small pores Jack Fowler, Duke HEP

IU Wire 19 Segment 5 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~4.0 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr Surface has many small C deposits Some porosity Jack Fowler, Duke HEP

IU Wire 19 Segment 5 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.0 C/cm Exposed Time – 672 hrs Target Flow Rate ~15 cc/hr Small pores around grain boundaries Some porosity Jack Fowler, Duke HEP

IU Wire 39 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.9 C/cm Exposed Time – 816 hrs Target Flow Rate ~15 cc/hr Surface smooth in appearance Many large C deposits Jack Fowler, Duke HEP

IU Wire 39 Segment 4 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.9 C/cm Exposed Time – 816 hrs Target Flow Rate ~15 cc/hr Many C deposits Loss of grain definition Jack Fowler, Duke HEP

IU Wire 39 Segment 5 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.9 C/cm Exposed Time – 816 hrs Target Flow Rate ~15 cc/hr Surface smooth in appearance Large C deposits Jack Fowler, Duke HEP

IU Wire 39 Segment 5 Gas Volume - Xe-CO2 -CF4 Polyimide Wire Joint Current – 1.7A Charge ~ 4.9 C/cm Exposed Time – 816 hrs Target Flow Rate ~15 cc/hr Surface is smoother Less grain definition C deposits Jack Fowler, Duke HEP

Summary It is clear that the wire is damaged in Duke wires and the surface has changed in Indiana wires Wire damage may be more a function of time exposed to gas as opposed to the amount of accumulated charge Duke wires have > double the exposure time IU wires have higher accumulated charge Xe-CO2 wire only exhibit small pores on surface Xe-CF4-CO2 wires show some heavy damage, both Au removal and deposits There is trace fluorine detected on the surface of the wire Jack Fowler, Duke HEP

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.