====== 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 [[http://www.physics.smu.edu/cooley/aarm/webpage.html | (webpage with results)]] ** SORCES4 code validation {{:sourcesvalidation.pdf|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: - Go to the following website: http://shemp.physics.smu.edu/physics/index.jsp - Enter your name in the box 'Full Name'. This is how your name will be displayed for everyone to see. - Select 'Virtual Room - AARM Conference Room' from the pull down session menu. - Enter the pswd for the conference 'faarm'. Note it is case sensitive. - 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: ^Time|2:00-3:00pm CDT, Tuesday, bi-weekly| ^Phone bridge | (218)5480597 + 982999#| **Meeting agenda and notes** ^Time ^ Agenda/notes ^Organizer | |Mar 11, 2014 | [[ :Radio:radio11mar14|Agenda/notes]] | Chao Zhang| |Jan 21, 2014 | [[ :Radio:radio21jan14|Agenda/notes]] | Chao Zhang| |Dec 03, 2013 | [[ :Radio:radio03dec13|Agenda/notes]] | Chao Zhang| |Nov 06, 2013 | [[ :Radio:radio30oct13|Agenda/notes]] | Chao Zhang| |Oct 30, 2013 | [[ :Radio:radio30oct13|Agenda/notes]] | Chao Zhang| |Oct 09, 2013 | [[ :Radio:radio09oct13|Agenda/notes]] | Chao Zhang| |Jul 25, 2013 | [[ radio25jul13|Agenda/notes]] | Chao Zhang| |Jun 27, 2013 | [[ radio27jun13|Agenda/notes]] | Chao Zhang| |Jun 13, 2013 | [[ radio13jun13|Agenda/notes]] | Chao Zhang| ===== References ===== - {{:ambe_marsh_nima_1995.pdf|AmBe measurement paper}} - AmBe calculation - Selvi - Review of MC Simulations for Backgrounds from Radioactivity, LRT2013 [[https://agenda.infn.it/getFile.py/access?contribId=75&sessionId=9&resId=0&materialId=slides&confId=5248 | (pdf of talk)]] {{:selvi_paper.pdf| (pdf of proceedings)}} - {{:radio:robinson_thesis.pdf|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 | [[:Radio:paper17Mar02|Agenda/notes]] | Silvia Scorza | |2016 February 24 | [[:Radio:paper16Feb24|Agenda/notes]] | Jodi Cooley | |2016 February 04 | [[:Radio:paper16Feb04|Agenda/notes]] | Jodi Cooley | |2015 December 09 | [[:Radio:paper15Dec09|Agenda/notes]] | Jodi Cooley | |2015 November 19 | [[:Radio:paper15Nov19|Agenda/notes]] | Jodi Cooley | |2015 October 15 | [[:Radio:paper15Oct15|Agenda/notes]] | Jodi Cooley | |2015 September 17 | [[:Radio:paper15Sep17|Agenda/notes]] | Jodi Cooley | |2015 May 14 | [[:Radio:paper15May07|Agenda/notes]] | Jodi Cooley | |2015 April 2 | [[:Radio:paper15Apr02|Agenda/notes]] | Jodi Cooley | |2015 March 17 | [[:Radio:paper15Mar17|Agenda/notes]] | Jodi Cooley | |2015 March 5 | [[:Radio:paper15Mar05|Agenda/notes]] | Jodi Cooley | |2015 February 19 | [[:Radio:paper15feb19|Agenda/notes]] | Jodi Cooley | |2015 February 12 | [[:Radio:paper15feb12|Agenda/notes]] | Jodi Cooley | |2015 January 29 | [[:Radio:paper15Jan29|Agenda/notes]] | Jodi Cooley | |2015 January 15 | [[:Radio:paper15Jan15|Agenda/notes]] | Jodi Cooley | |2014 December 18 | [[:Radio:paper14Dec18|Agenda/notes]] | Jodi Cooley | |2014 December 4 | [[:Radio:paper14nov04|Agenda/notes]] | Jodi Cooley | |2014 May 8 |[[:Radio:paper14may08|Agenda/notes]] | Jodi Cooley | |2014 April 24 |[[ :Radio:paper14apr24|Agenda/notes]] | Jodi Cooley |