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  • July 6, 2007 Neutron Capture in lead
    ...ss 10 cm on sides of HpGe detector. The source was Cf-252 without and with lead container of 60μCi activity.<br> ...ver, 388 kev and 333 kev, energy lines of Cf-249 are more dominant without lead.<br>
    867 bytes (135 words) - 14:20, 26 July 2007
  • Some notes about shielding materials
    =Lead Pb= ...204Pb regarded as completely primordial lead [http://en.wikipedia.org/wiki/Lead Wikipedia]
    797 bytes (127 words) - 03:16, 7 April 2012
  • Shielding Materials
    =Lead Pb= ...204Pb regarded as completely primordial lead [http://en.wikipedia.org/wiki/Lead Wikipedia]
    808 bytes (127 words) - 19:04, 24 May 2012
  • NaI Attenuation Measurements
    ...block photons and borated poly to block signal to NaI detector -> now have lead sheets Then remove lead to see effect of photons
    589 bytes (104 words) - 18:05, 18 May 2021
  • PAS Experiment Lead Shielding
    == Lead Bricks == Painted half size lead bricks (1"x2"x4") with red epoxy based paint for safer handling when buildi
    1 KB (231 words) - 23:44, 1 June 2021
  • Tri-MeV Shot Images
    From left to right there is varying thicknesses of Lead in front of the image plate. Starting with no Lead, then increasing by 1/8" to a maximum of 7/8", then decreasing at the same
    453 bytes (75 words) - 14:02, 14 July 2016
  • Finding the Space Between Lead Shots
    [[Image:lead shot labeled.jpg|thumb|Lead Shot|400 px]] 2 - Box filled with Lead, m <sub>2</sub>
    3 KB (435 words) - 06:26, 5 February 2009
  • July 11, 2007 Experimental setup
    ...or and Cf-252. As a shielding from cosmic rays for HPGe detector were used lead of thickness 10 cm and for neutrons paraffin wax of 12.6 cm thickness<br> Below is presented Cf-252 source of 60 microCi activity and lead pig for the same source<br>
    450 bytes (69 words) - 00:54, 23 October 2007
  • Spectra of neutrons and gamma-rays from Cf-252 source
    ...spectrum on 1.11 cm plate of lead (the thickness is like the thickness of lead container for Cf-252 source):
    741 bytes (112 words) - 16:56, 15 July 2007
  • PhotoFiss 3-7-11
    | 3/7/11 || 1912 || 1" lead brick as physics target | 3/7/11 || 1914 || Radiator in, bending beam down, lead target
    3 KB (348 words) - 16:52, 1 April 2011
  • June 25,2007 Cf-252 measurements of total gamma-spectrum using HpGe ungated
    ...of thickness 12.6 cm was used as a neutron attenuator and for cosmic rays lead of thickness 10 cm on sides of <br>HpGe detector. Total time of the run was ==Lead-214 line==
    1,005 bytes (149 words) - 00:50, 23 October 2007
  • Jule 3,2007 Cf-252 without lead container measurements with HpGe & fast plastic scintillators in coincidence
    ...t 9 hours. Total number of counts: 658, 012. The source was Cf-252 without lead container of 60μCi activity.<br>
    901 bytes (129 words) - 16:57, 6 July 2007
  • LB Photon Flux Sim Feb 2017
    ...aced varying distances away from the radiator and the positions within the lead where the photons hit are plotted.
    427 bytes (74 words) - 23:56, 12 February 2017
  • PhotoFiss 3-2-11
    | 3/2/11 || 1797 || 1/4" lead sheet target first ToF attempt | 3/3/11 || 1815 || Lead Target ToF attempt, good looking gamma peak, need more stats
    2 KB (308 words) - 16:51, 1 April 2011
  • PhotoFiss 3-1-11
    | 3/2/11 || 1797 || 1/4" lead sheet target first ToF attempt | 3/3/11 || 1815 || Lead Target ToF attempt, good looking gamma peak, need more stats
    2 KB (308 words) - 16:49, 1 April 2011
  • July 3,2007 Cf-252 without lead container measurements with HpGe & fast plastic scintillators in coincidence
    ...t 9 hours. Total number of counts: 658, 012. The source was Cf-252 without lead container of 60μCi activity.<br>
    919 bytes (132 words) - 00:51, 23 October 2007
  • PhotoFiss 3-3-11
    | 3/3/11 || 1815 || Lead Target ToF attempt, good looking gamma peak, need more stats | 3/3/11 || 1816 || Lead Target ToF attempt, cancelled due to multiple start pulse problem
    2 KB (277 words) - 16:51, 1 April 2011
  • June, 11, 2007 Cosmic Ray measurements using HpGe Detector
    ...the lead shielding plate and the Red cure is what happens when a 1" thick lead plate is placed on top of the Ge detector to shield cosmics. The integrate
    802 bytes (128 words) - 22:09, 19 June 2007
  • PAS Shielding
    ='''Lead'''= =='''Lead Bricks'''==
    2 KB (381 words) - 19:33, 20 December 2022
  • Shot 84 Image
    [[File:SHOT 84.jpg|400px|thumb|left|1/8 inch lead steps]]
    57 bytes (9 words) - 22:58, 12 July 2016
  • GEMS
    Part # P103535VAR = $50 portable bottle of 65% Ar 35% Ethane (10 day lead time) ...put one lead from the HV power supply onto the DVM and then the other DVM lead onto the GEM foil). Set the DVM to mV scale and don't set it to measure cu
    2 KB (296 words) - 03:18, 8 December 2012
  • Position/Timing resolution study with CO-60
    ...ept for right below the source, where there was small pin hole through the lead. Placed directly above the source is a finger detector that is in hardware
    721 bytes (111 words) - 00:14, 20 May 2016
  • June, 21, Cosmic background BC408 on top of HpGe
    ...the both sides, front layer was 20.4 cm and bottom one 5 cm. There was not lead on top of HpGe detector<br>
    878 bytes (132 words) - 01:10, 24 June 2007
  • 2-Neutron Correlation Setup Stuff
    ==Neutron and Photon Flux Through Lead== ...sults illustrate how much of the initial beam actually made it through the lead.
    4 KB (566 words) - 15:42, 11 July 2012
  • Cosmic Ray Shielding Test
    |Layers of lead
    300 bytes (42 words) - 06:22, 5 February 2009
  • PAS Lead Tunnel
    Made lead brick tube 6/4/2021 ...le:PAS_Lead_Tunnel_2.jpg|300px|thumb|center|Looking down the center of the lead tunnel. Detector will be mounted at the far end ]]
    1 KB (172 words) - 03:15, 5 June 2021
  • TF Simul PhotField IAC 2n
    A 30 cm radius lead collimator is position within the wall. Lead Collimator is 15 cm in radius with a 1/4" diameter hole.
    2 KB (381 words) - 22:44, 1 July 2014
  • 09-08-2016
    ...et, poly, and stand,Installed 3rd collimator wall, D30 has one 1/16" thick lead curtain [[File:Rate2nC_5302.png|40px]][[File:Run5302_ToF_Histograms.png|40p ...r magnet, poly, and stand,Installed 3rd collimator wall, D30 has '''NO''' lead curtain [[File:Rate2nC_5303.png|40px]][[File:Run5303_ToF_Histograms.png|40p
    13 KB (1,995 words) - 20:58, 27 September 2016
  • Double Peak Analysis
    The lead in front of the neutron detectors was removed. Run 1930 shows the results ...collimation hole was blocked on the accelerator hall side with 8 inches of lead. Run 1923 is with a no physics target.
    3 KB (577 words) - 21:39, 27 April 2011
  • PhotoFissionOctoberAnalysis
    Black lead shot collimator increased neutron flux by factor 2? Black lead shot collimator increased neutron flux by factor 2?
    4 KB (566 words) - 06:29, 5 February 2009
  • June, 7, 2007 Cf rate measurements using Photonics PMT
    3: Replaced steel wall with 5 cm thick lead shielding brick 4: Replaced lead brick with 6.7 cm thick paraffin block ( Paraffin N.F. , Household wax made
    8 KB (1,249 words) - 18:49, 29 June 2007
  • PbBi NioWave TargetProperties 2015
    Definition of Lead Bismuth
    306 bytes (44 words) - 16:37, 11 February 2016
  • 05-2-2017
    ...width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet || ||[[File:R6275-R6276Overlay.png|200px]] | ...width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet || ||[[File:R6275-R6276Overlay.png|200px]] |
    4 KB (603 words) - 00:12, 16 June 2017
  • D2O photodisintegration simulation
    ...nd the beam line. Scattered photons may produce background neutrons in the lead shielding of neutron detectors. ...ot have many photons which are energetic enough to produce neutrons in the lead.
    3 KB (564 words) - 15:12, 11 April 2011
  • MCNP simulations
    [[Neutron scattering in lead shielding]]
    365 bytes (45 words) - 00:01, 13 October 2016
  • PAS Thermalizing Box Design
    * Red - Lead brick ='''Lead'''=
    2 KB (299 words) - 16:38, 19 July 2021
  • 2-Neutron Correlation
    ==Neutron and Photon Flux Through Lead== ...sults illustrate how much of the initial beam actually made it through the lead.
    6 KB (851 words) - 20:51, 2 October 2012
  • Logbook
    * Lead: Detector surrounded on 4 sides by 1" lead. Front end up to 4" of lead. Back end exposed. * Poly: Up to 40cm of green poly between lead and source (line-of-sight). No poly elsewhere.
    5 KB (674 words) - 18:47, 11 May 2021
  • 11-10-2016
    ...mV, All detectors at -1500 V except D30 which is at HV =-1450, r'''eplaced lead beam dump with Aluminum, 8" center + 4" radially out (ie double brick near ...30 mV, All detectors at -1500 V except D30 which is at HV =-1450, replaced lead beam dump with Aluminum, 8" center + 4" radially out (ie double brick near
    5 KB (731 words) - 16:16, 11 November 2016
  • 2n BKG data
    There was 2" of lead in front of the Det G. Det G was placed on the floor.
    662 bytes (104 words) - 23:12, 7 December 2012
  • CodyMilne G4Proj
    ...eight 55cm. There is a 1mmx1cm hole (made of Argon) from the center of the lead cask to the outside, pointed toward the middle of the Germanium crystal. ...goal of this gun is to simulate decay from a fuel rod on the inside of the lead cylinder. Angular cuts are made on the gun to limit wasteful gammas from be
    5 KB (741 words) - 19:35, 28 May 2016
  • Neutron Production Thresholds
    | Lead || 7.05 || 50 mbarns at <math> E_{\gamma}</math>=8 MeV
    656 bytes (80 words) - 21:02, 20 April 2011
  • X-talk between n-dets
    Behaviour of lead and borated poly under the neutron radiation: 3) borated poly was placed in between two layers of 1" lead layers;
    6 KB (949 words) - 16:09, 8 June 2015
  • June 27,2007 Cf-252 measurements with HpGe detector and BC408
    Paraffin wax of thickness 12.6 cm and lead of 10 cm thickness were used as a shielding from neutrons and cosmic rays<b
    525 bytes (77 words) - 00:50, 23 October 2007
  • Thickness of Lead to block photons
    ...s}</math> <math>\textbf{of}</math> <math>\textbf{the}</math> <math>\textbf{lead = 3.24 cm}</math>
    610 bytes (77 words) - 06:27, 5 February 2009
  • CLAS12 R1 SOW
    | 4 || May 2,2011|| Hire lead stringer send to JLab for training Lead stringer spends < 5 Months initially at JLab stringing 1/2 of a R1 chamber,
    7 KB (903 words) - 04:56, 25 March 2011
  • ISU Policies
    Personal information that, if compromised, could lead to identity theft.
    816 bytes (117 words) - 19:45, 1 August 2011
  • June 19,2007 Cf-252 measurements of gamma-spectrum using HpGe ungated
    ...er of thickness 15 cm was used as a neutron attenuator and for cosmic rays lead of thickness 5 cm in front of <br>HpGe detector. Total time of the run was
    830 bytes (130 words) - 00:46, 23 October 2007
  • 52x48 Steel Table
    *Table is fully assembled and has been holding NaI detector and lead. Should be ready for experimental setup
    449 bytes (71 words) - 00:07, 2 June 2021
  • Submitted parts of the dissertation and their comments
    An introductory paragraph can lay out the contents of Chapter 1 in order to lead into the description contained in Chapter 1.
    1 KB (162 words) - 20:47, 17 April 2015
  • Doppler Broadening
    [[July 3,2007 Cf-252 without lead container measurements with HpGe & fast plastic scintillators in coincidenc [[July 6, 2007 Neutron Capture in lead]]<br>
    3 KB (469 words) - 07:48, 7 December 2008
  • 09-07-2016
    ...et, poly, and stand,Installed 3rd collimator wall, D30 has one 1/16" thick lead curtain [[File:Rate2nC_5302.png|40px]] ...r magnet, poly, and stand,Installed 3rd collimator wall, D30 has '''NO''' lead curtain [[File:Rate2nC_5303.png|40px]]
    6 KB (886 words) - 22:45, 7 September 2016
  • 40MeV BeamLineInstall 10252013
    3 week lead time on flanges
    935 bytes (110 words) - 21:49, 28 October 2013
  • CH He3 Attenuation Measurements: 3 Different Cf252 Sources
    ==='''Lead Attenuation Measurements'''=== ===='''Lead Open Source'''====
    16 KB (1,820 words) - 18:21, 17 June 2022
  • NaI Detectors
    This cradle will be used in the lead tunnel to hold the NaI detector in the center of the tunnel. The goal was t
    706 bytes (111 words) - 18:29, 24 June 2021
  • CH Task List
    * Move painted lead bricks to clean room (X) * Model cradle for NaI detector for lead tube (X)
    4 KB (587 words) - 00:27, 17 November 2021
  • TF SBIR2012
    ...)probe, measuring the B-field with beam off, and then tuning the beam will lead to long beam tuning times. b.) liklihood work will lead to marketable product
    3 KB (578 words) - 17:51, 5 November 2011
  • Pb Cylinder (AKA "Temp Shield")
    =Creating Lead Cylinder= For a lead cylinder with outer radius of 60mm, to ensure Moller electrons can clear th
    2 KB (300 words) - 19:00, 3 July 2018
  • Determining and Verify Shield Limits
    For the components of FTOff, starting at the cone-tip and running to the lead shield
    1 KB (136 words) - 15:51, 27 October 2018
  • Solenoid Magnet
    Target is 2 mm thick Lead-Bismuth target, which yields most positrons.
    1 KB (140 words) - 06:52, 19 July 2015
  • LBE Paper
    Liquid Lead Bismuth Target for Positron Production ...ents of the system (primarily converter channel windows) are minimal. Both lead and bismuth have high atomic numbers and good conversion efficiency. The eu
    5 KB (677 words) - 13:55, 19 December 2016
  • CHIPS IAC Run 5-30-08
    ...is '''on''' but no electrons, gun pulser unplugged, source was put inside lead doughnut collimator such that we get 2 peaks ...F , Na-22 is back in, free running ADC gate, Tony installs source in front lead brick collimator for a single peak (put source outside collimator)
    10 KB (1,478 words) - 06:06, 7 November 2010
  • September 8, 2011
    *<span style="color:#0000FF">Shield around it with lead as far downstream as possible.</span> (Last time, this helped a lot.) |align="left"|Pair-spectrometer rate measurements w/ collimator blocked w/ lead, 6" upstream, 4" downstream.
    5 KB (759 words) - 16:56, 16 September 2011
  • CHIPS Run May-2008
    5.) minimize background. Add lead shielding around Germanium target and NaI so Tantalum In/out ratio is maxed 8" lead shielding wall
    6 KB (879 words) - 04:04, 31 August 2012
  • HRRL BeamLine 2011
    |3/30/11 || Order Gate Valve (4 week lead time)
    1 KB (162 words) - 02:53, 17 October 2011
  • IAC RFP
    Lead provenance (bullets, Lead in Doggies biscits
    4 KB (475 words) - 18:49, 9 February 2016
  • 03-24-2015
    ...both the accelerator side (4" of lead) and the experimental hall (3.5" of lead) => 1 gamma per 46 pulses (TDC30), 1 gamma in 7 pulses (TDC24) ...both the accelerator side (4" of lead) and the experimental hall (3.5" of lead) => 1 gamma per 29 pulses (TDC30), 1 gamma in 3 pulses (TDC24), positron sc
    5 KB (733 words) - 23:53, 24 March 2015
  • TF EV
    batteries = 18 US Battery US-8VGCHC, 8.00 Volt, Lead-Acid, Flooded = @ $170 each => $3060 batteries = 18 Trojan T 890, 8.00 Volt, Lead-Acid, Flooded = @ $180 each => $3240
    5 KB (816 words) - 00:43, 29 October 2014
  • Rotating Tungsten Target System
    Connect the drive to the motor. Four lead motors can be connected in only one way, as shown in Figure 1. We recommend that eight lead motors be connected in parallel, as shown in Figure 2.
    5 KB (769 words) - 00:03, 29 September 2012
  • PhotoFission with Polarized Photons from HRRL
    [[Thickness of Lead to block photons]] [[Finding the Space Between Lead Shots]]
    4 KB (544 words) - 19:18, 15 March 2015
  • 10-31-08 GEM HRRL Photon Runs
    ...r using a 4" wide lead brick wall with 1 mm thick shims place in between 2 lead bricks in order to produce a horizontal fan of photons. It was also clear
    7 KB (1,023 words) - 07:52, 7 December 2008
  • HRRL CHIPS Logbook
    6.) The Bevatron at LBL may be decomission. see if they will ship lead shielding. Power supplies have a 6 week lead time.
    9 KB (1,427 words) - 22:40, 6 September 2011
  • Niowave 9-2015
    ...ns were performed to predict the efficiency of producing positrons using a Lead-Bismuth target and a 10 MeV incident electron. MCNPX and GEANT4 were used
    2 KB (226 words) - 14:39, 13 April 2016
  • Positrons
    | 3|| enclose HRRL cavity with 1/4" lead 3. chamber: 6 week lead time.
    5 KB (664 words) - 19:41, 16 December 2016
  • 2n Neutron signal attenuation
    ...aced in different positions along the detector surface shielded with 2" of lead and counting rate of the two PMTs was observed via dual counter ORTEC 778.
    3 KB (505 words) - 16:59, 20 November 2012
  • GEM pre-amplification
    ...alue, at some critical value of E and p, the current increases rapidly and lead to a breakdown of the gap in the form of a spark. <ref name="loeb"> L.B.Lo ...med that if the electron energy is greaterthan <math>eV_i </math>, it will lead to ionization, however, the ionization probability does not always increase
    7 KB (1,108 words) - 16:23, 6 September 2013
  • CHIPS IAC Run 5-29-08
    We put in two thin pieces (thickness ~1/4" each) making a ~1/2" of lead angled at ~30 degrees wrt vertical between the NaI detector and the collima
    4 KB (595 words) - 15:11, 30 May 2008
  • CH He3 Attenuation Measurements Revisited
    =='''Lead Attenuation Measurements'''== ==='''Lead Open Source'''===
    38 KB (4,384 words) - 16:34, 28 April 2022
  • CH PAS Master Timeline
    * Put first coat of paint onto lead bricks to be used as shielding in PAS experiment * Sheared a lead sheet into 6 rough 3"x3" squares to be used for attenuation measurements wi
    10 KB (1,505 words) - 22:26, 24 August 2021
  • HRRL Move 2010
    ...is unclear if we can reuse the current stands. We will want a way to add lead sheets around the HRRL and the location of the Tungsten converter target wh
    2 KB (372 words) - 17:02, 2 September 2010
  • Day5, Oct 4,2011
    ..._e^2 m_e c^2 \rho \frac{Z}{A} \left ( \frac{z}{\beta}\right)^2 x </math> = lead term in Bethe Bloch equation
    4 KB (709 words) - 14:32, 4 October 2011
  • HRRL radiation tests
    Beam bear through 1/4 inches diameter collimator with 4 inches lead. Which lead to Dose rate of channel 17 at 10 MeV electron and 20 mA peak current:
    16 KB (1,978 words) - 15:15, 24 August 2010
  • TF Project JeV 1989
    === Lead=== Typically it takes 15-20 lbs of lead to achieve 1 mile in range. A Rule of Thumb is that 1/3 of the EVs weight s
    16 KB (2,271 words) - 04:42, 19 May 2013
  • Niowave Report 11-30-2015
    ...liquid Lead-Bismuth Eutectic (LBE) is chosen with a concentration of 44.5% lead and 55.5% bismuth in order to provide a high atomic number (Z) material to
    9 KB (1,446 words) - 19:10, 4 December 2015
  • 201203 R1ProgressRep
    Our new Lead Stringer advertisement went out last Friday.
    4 KB (541 words) - 18:07, 16 October 2012
  • Sadik Log Book
    ...tal photon and electron energy deposited. In simulation, place cylindrical lead (Pb) shield around HRRL, and see the change on the energy, if I change the ...tal photon and electron energy deposited. In simulation, place cylindrical lead (Pb) shield around HRRL, and see the change on the energy, if I change the
    8 KB (1,329 words) - 20:28, 16 May 2011
  • HRRLPos Timeline Summary
    |3/30/11 || ||Order Gate Valve (4 week lead time)
    3 KB (462 words) - 20:45, 3 November 2011
  • Syed LCS G4ModelPaper
    ...S X-rays of ~20 keV and ~98 keV as well as radiographic images of fish and lead samples will be shown.
    3 KB (480 words) - 15:28, 1 May 2009
  • Forest Electronic Instrumentation and Measurement
    ...view of DC and AC analog circuits. Semiconductor physics is introduced to lead into a study of transistors. The use of bipolar transistors for saturated
    4 KB (559 words) - 16:39, 31 March 2015
  • ExN02DetectorConstruction.cc
    //Lead new G4Material("Lead", z=82., a= 207.19*g/mole, density= 11.35*g/cm3);
    14 KB (1,291 words) - 03:06, 23 January 2018
  • IAC 1-7-08
    Configuration: Collimated rear scint+ 2" Aluminum brick + 2" lead brick
    5 KB (800 words) - 02:20, 8 January 2008
  • DV RunGroupC Moller
    =GEANT4 Simulation of Lead Conic Moller Shield= ==[[Lead Shield Cone]]==
    11 KB (1,332 words) - 18:03, 13 January 2019
  • He3Tube Equipment
    ...a 2" layer of lead. The Cf-252 source was placed directly on top of the lead. Below is a measurement recorded in run #6295 taken over a 7 minute period
    11 KB (1,541 words) - 18:41, 26 May 2017
  • 12 10 2012 HRRL DetectorTests
    ...hield Illyusha (when positioned next to the hallway) to determine how much lead to add around T1.
    5 KB (736 words) - 04:04, 22 September 2013
  • Merging background hits
    ...not technically visible to the detector within the time window. This can lead to double counting events/hits, but is also useful in describing where part
    3 KB (460 words) - 20:13, 5 September 2018
  • Fission Fragment Diffusion Through TRISO
    ...DERAL POC – MADELINE FELTUS & TECHNICAL POC – PAUL DEMKOWICZ) (ELIGIBLE TO LEAD: UNIVERSITIES ONLY)
    5 KB (617 words) - 19:09, 7 November 2016
  • AccApp07
    ...d concrete was measured. A step wedge of varying thickness of concrete and lead is placed inside a cargo container in order to evaluate the photon detectio ...oduced by fissionable material capable of posing a nuclear threat than for lead.
    12 KB (1,818 words) - 18:28, 30 August 2007
  • Old CLAS12
    ...re people. Stringers hourly rate ($30-$35/hr with overhead and benefits). Lead stringer is +$5/hr more. = JLab job posting for lead stringer=
    13 KB (2,074 words) - 15:05, 1 November 2013
  • CLAS12 R1
    Time needed to train lead stringer at JLab = 4-6 weeks? | 9/1/10 || 10/29/10 || 6/16/2011 ||Hire and train R1 Lead Stringer
    17 KB (2,282 words) - 22:29, 27 February 2017
  • 2020 NSF Proposal
    ...g his work using parity violation to precisely measure the neutron skin of lead and calcium, E12-12-004 and perform a new measurement of parity violating M
    2 KB (378 words) - 20:57, 19 November 2019

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