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Radiogenic Data and Cross Section Working Group

Members:

  • Dongming Mei
  • Chao Zhang
  • Wenzhao Wei
  • Chris Chiller
  • Angela Chiller
  • Silvia Scorza
  • Hang Qiu
  • Kimberly Palladino
  • Jodi Cooley
  • Alan Robinson

Goals

  • Calculate more (alpha,n) neutron yields and energy spectra for the materials used in ultra-low background experiments
    • Priority will be given to include alphas from U-228 and radon decay chain

  • Validate the calculations with other simulation packages (webpage with results)
    • SORCES4 code validation pdf

    • Compare cross sections from EMPIRE vs TALYS (EMPIRE provides the excited states and x-sections for SOURCES)

    • Dongming's website at USD (neutronyield.usd.edu) using TALYS to do his calculations

    • Want to compare for common materials such as Cu, poly, Pb, norite and PMT glass

    • Kimberly Palladino (MIT) to visit SMU in January to work with Silvia and Hang

    • Priority will be given to verify neutron energy spectrum in different materials

  • Convert the calculated (alpha,n) cross-sections into GEANT4 data format
  • Create physics links in GEANT4 for (alpha,n) reaction
  • Make GEANT4 package available for (alpha,n) simulation
  • Compile the measured radioactive background data at the Homestake Mine to be useful for large community
    • Gamma-ray flux and radon level from rock

  • Generate the Mine background data files for large community
  • Study of radon emanation and radon reduction
    • Radon emanation screening for different materials needed for G2 experiments?

    • Radon daughter plate-out measurementrs

    • Radon reduction system (scrubber) needed for G2 experiments?

Meetings

This working group will focus on the topic concerning to radiogenic productions. we will take bi-weekly meeting on Wednesday 10-11pm CDT. We are going to use the Big Blue Button as our primary tool for the meeting, the instructions are listed below:

  1. Go to the following website: http://shemp.physics.smu.edu/physics/index.jsp
  2. Enter your name in the box 'Full Name'. This is how your name will be displayed for everyone to see.
  3. Select 'Virtual Room - AARM Conference Room' from the pull down session menu.
  4. Enter the pswd for the conference 'faarm'. Note it is case sensitive.
  5. Hit the 'Join' button.

Once the session starts you will be prompted to 'allow' or 'deny' flash settings. You should select 'allow'. Then you will see a box to test your audio settings. If everything looks good hit 'Join Audio'.

If the Big Blue Button somehow doesn't work out, we will switch to the following phone bridge:

Time2:00-3:00pm CDT, Tuesday, bi-weekly
Phone bridge (218)5480597 + 982999#

Meeting agenda and notes

Time Agenda/notes Organizer
Mar 11, 2014 Agenda/notes Chao Zhang
Jan 21, 2014 Agenda/notes Chao Zhang
Dec 03, 2013 Agenda/notes Chao Zhang
Nov 06, 2013 Agenda/notes Chao Zhang
Oct 30, 2013 Agenda/notes Chao Zhang
Oct 09, 2013 Agenda/notes Chao Zhang
Jul 25, 2013 Agenda/notes Chao Zhang
Jun 27, 2013 Agenda/notes Chao Zhang
Jun 13, 2013 Agenda/notes Chao Zhang

References

  1. AmBe calculation
  2. Selvi - Review of MC Simulations for Backgrounds from Radioactivity, LRT2013 (pdf of talk) (pdf of proceedings)
  3. Alan Robinson's thesis - (alpha,n) evaluations and backgrounds for PICO.

SOURCES vs USD Website Comparison Paper

Meeting agenda and notes

Time Agenda/notes Organizer
2017 March 2 Agenda/notes Silvia Scorza
2016 February 24 Agenda/notes Jodi Cooley
2016 February 04 Agenda/notes Jodi Cooley
2015 December 09 Agenda/notes Jodi Cooley
2015 November 19 Agenda/notes Jodi Cooley
2015 October 15 Agenda/notes Jodi Cooley
2015 September 17 Agenda/notes Jodi Cooley
2015 May 14 Agenda/notes Jodi Cooley
2015 April 2 Agenda/notes Jodi Cooley
2015 March 17 Agenda/notes Jodi Cooley
2015 March 5 Agenda/notes Jodi Cooley
2015 February 19 Agenda/notes Jodi Cooley
2015 February 12 Agenda/notes Jodi Cooley
2015 January 29 Agenda/notes Jodi Cooley
2015 January 15 Agenda/notes Jodi Cooley
2014 December 18 Agenda/notes Jodi Cooley
2014 December 4 Agenda/notes Jodi Cooley
2014 May 8 Agenda/notes Jodi Cooley
2014 April 24 Agenda/notes Jodi Cooley
radio.txt · Last modified: 2017/02/27 12:23 by cooley