Analysis meeting 11July05 - T. Burnett 1 Status of the Background Review DC2 prep meeting: Switch to CRflux package by Mizuno for charged particles, Earth.

Slides:

Advertisements

Similar presentations

STAR Status of J/  Trigger Simulations for d+Au Running Trigger Board Meeting Dec5, 2002 MC & TU.

Advertisements

GLAST The GLAST Balloon Flight experiment was performed with the collaboration of NASA Goddard Space Flight Center, Stanford Linear Accelerator Center,

CRflux_protonAlpha_ ppt 1 Proton/alpha background flux models October 14, 2003 Tsunefumi Mizuno Background flux model.

Analysis Meeting 5/25/05 - T. Burnett 1 Background status G4 Multiple scattering Toby Burnett.

S. Ritz 1 Hardware Trigger Throttle Issues Context: the triggers Purpose of throttle on TKR trigger Earlier design using TKR geographic information The.

Bill Atwood, SCIPP/UCSC, May 8, 2006 GLAST 1 Partial validation of v9r3 - Bkg. Rej. Comparison 2000 sec. of backgrounds were run using v9r3 (heros: Tom.

Sources for the Data Challenge Toby Burnett, Theodore Hierath, Sean Robinson SLAC Workshop 15 July 2003.

Status of Trigger Rate Studies Analysis Group meeting 27 January 2003 D. Wren S. Ritz.

Analysis Meeting 26 Sept 05T. Burnett1 UW classification: background rejection (A summary – details at a future meeting)

THB Flux study 12/14/05 1 Flux archeology We are digging into the detritus of the past: how could we have been confident that we had a good estimate, even.

S. Ritz1 Checking Out What is Checked In  Need to optimize balance of checking between users and developers. –infuse more of a culture of detailed checking.

David WrenDC1 Closeout, 13 February OnboardFilter Update Work done by: Navid Golpayegani J.J. Russell David Wren Data Challenge I Closeout Meeting,

GLAST Rate Calculations Toby Burnett 12 Jan Jan 2000T. Burnett GLAST rate calculations2 Components used to measure rates Source model –Geomagnetic.

GLAST LAT ProjectTrigger Scheduler, Engines, and Rates 6 Feb 2006 J. Eric Grove Naval Research Lab Washington DC Trigger Scheduler, Engines, and Rates.

Analysis Meeting 31Oct 05T. Burnett1 Classification, etc. status at UW Implement “nested trees” Generate “boosted” trees for all of the Atwood categories.

Hardware Failure Impacts Exercises S. Ritz. Issues Recent results from design reliability analysis (system engineering, Thurston et al.) Probabilities.

PositronBG_ ppt 1 Positron BG on GLAST/EGRET GLAST Calibration/Analysis VRVS meeting April 17, 2006 Tsunefumi Mizuno Hiroshima University.

GLAST LAT Project S. Ritz 1 GLAST Large Area Telescope: Adding Converter to the Blank TKR Planes? Bill Atwood, Tune Kamae, Steve Ritz 4 September 2002.

Bill Atwood, SCIPP/UCSC, Dec., 2003 GLAST 1 DC1 Instrument Response Agenda Where are we? V3R3P7 Classification Trees Covariance Scaled PSF Pair Energies.

GLAST LAT ProjectDOE/NASA CD3-Critical Design Review, May 12, 2003 S. Ritz Document: LAT-PR Section 03 Science Requirements and Instrument Design.

GLAST LAT ProjectGLAST Flight Software IDT, October 16, 2001 JJRussell1 October 16, 2001 What’s Covered Activity –Monitoring FSW defines this as activity.

Onboard Filter Update Performance after updated cuts David Wren 26 January 2004.

Status of Trigger Rate Studies Analysis Group meeting 9 December 2002 D. Wren S. Ritz.

Analysis Meeting 17 Oct 05T. Burnett1 UW classification: background rejection Update with new all gamma and background samples.

Bill Atwood, SCIPP/UCSC, DC2 Closeout, May 31, 2006 GLAST 1 Bill Atwood & Friends.

T. Burnett: IRF status 5-feb-061 DC2 IRF Status Meeting agenda, references at:

GLAST background review dec Simulating rates: the big picture Incoming rate into the 6 m 2 sphere: is it right? Corresponding trigger rate: implies.

GLAST LAT ProjectIA Workshop 6 – Feb27,2006 S. Ritz Backgrounds and Trigger Rates 1 Backgrounds and Trigger Rates on Orbit S. Ritz with many contributions.

T. Burnett: DC2 kickoff 2-Mar-061 DC2 Orbit and Background Orbit: 55 days Pointing strategy: scan & rock! Background Model generation Interleave with signal.

Background runs at the UW “farm” A little background: we have installed the GRID-standard condor from the other UW in Madison. –Currently 6 CPUs available,

R.Dubois Sim/Recon Overview 1/10 GLAST LAT ProjectSoftware Workshop July, SLAC Sim/Recon Overview Elements of Simulation/Reconstruction Development,

Negative Ions in IEC Devices David R. Boris 2009 US-Japan IEC Workshop 12 th October, 2009 This work performed at The University of Wisconsin Fusion Technology.

O After integration and test at SLAC and GSFC, BFEM was shipped to the National Scientific Balloon Facility (NSBF) at Palestine, Texas. The experiment.

T. Burnett1 GLAST LAT ProjectDOE/NASA Baseline-Preliminary Design Review, January 9, 2002 SAS Software: Sources Detector geometry model Simulation Event.

Space Environment SSE-120 Please type in your questions and raise your hand so we can answer it during class.

Feb. 7, 2007First GLAST symposium1 Measuring the PSF and the energy resolution with the GLAST-LAT Calibration Unit Ph. Bruel on behalf of the beam test.

Aa GLAST Particle Astrophysics Collaboration Instrument Managed and Integrated at SLAC/Stanford University The Gamma-ray Large Area Space Telescope (GLAST)

Trapped positrons and electrons observed by PAMELA Vladimir Mikhailov NRNU MEPHI, Moscow, Russia For PAMELA collaboration ICPPA 2015, PAMELA workshop,

Cosmic rays at sea level. There is in nearby interstellar space a flux of particles—mostly protons and atomic nuclei— travelling at almost the speed of.

Electronic Patient Discharge Plan (ePDP) A Detailed How-To For Providers Last updated: 2/9/151.

Cosmic Rays2 The Origin of Cosmic Rays and Geomagnetic Effects.

GLAST Hiroshima University, ISAS Cosmic-Ray Source Generator Y.Fukazawa (Hiroshima U) M.Ozaki(ISAS) T.Mizuno(Hiroshima U) S.Hirano(Hiroshima U) T.Kamae(Hiroshima.

Geant4 for GLAST BFEM -Comparison with Distributions in BFEM Data – T. Mizuno, H. Mizushima, S. Ogata, Y. Fukazawa (Hiroshima/SLAC) M. Roterman, P. Valtersson.

Predicting Near Space Flights L. Paul Verhage 13 July 2013.

Comparison between BFEM data and G4 simulation October 18, 2001 Balloon Analysis VRVS meeting T. Mizuno, H. Mizushima, Y. Fukazawa, and T. Kamae

The GLAST Background Model J. F. Ormes 1, W. Atwood 2, T. Burnett 3, E. Grove 4, F. Longo 5, J. McEnery 6, T. Mizuno 7 & S. Ritz 6 on behalf of the GLAST.

GLAST_BGmodel_ ppt Tsunefumi Mizuno 1 Status of the GLAST BG model February 6, 2008 CA-SO Workshop Tsunefumi Mizuno (Hiroshima Univ.)

In high energy astrophysics observations, it is crucial to reduce the background effectively to achieve a high sensitivity, for the source intensity is.

T2K Status Report. The Accelerator Complex a Beamline Performance 3 First T2K run completed January to June x protons accumulated.

A complete simulation of cosmic rays access to a Space Station Davide Grandi INFN Milano, ITALY.

Throttle Studies David Wren Analysis Group Meeting 22 March 2004.

1 Study of Data from the GLAST Balloon Prototype Based on a Geant4 Simulator Tsunefumi Mizuno February 22, Geant4 Work Shop The GLAST Satellite.

Feb. 3, 2007IFC meeting1 Beam test report Ph. Bruel on behalf of the beam test working group Gamma-ray Large Area Space Telescope.

After integration and test at SLAC and GSFC, BFEM was shipped to the National Scientific Balloon Facility (NSBF) at Palestine, Texas. The experiment was.

O After the integration and test at SLAC/GSFC, BFEM was shipped to National Scientific Balloon Facility (NSBF) at Palestine, Texas. The experiments was.

GLAST LAT ProjectNovember 18, 2004 I&T Two Tower IRR 1 GLAST Large Area Telescope: Integration and Test Two Tower Integration Readiness Review SVAC Elliott.

Acd Veto Latching The Acd front end electronics generate a veto primitive when a discriminator goes above threshold. But. The signal is split: One path.

Background Rejection Prep Work

Search for Cosmic Ray Anisotropy with the Alpha Magnetic Spectrometer on the International Space Station G. LA VACCA University of Milano-Bicocca.

Secondary positrons and electrons measured by PAMELA experiment

Vladimir Mikhailov (MEPhI) on behalf PAMELA collaboration

Downlink rates The next slide was presented to Jonathans’ flux review

Cosmic-Ray Source Generator

Sabra Djomehri SULI 2007 Stanford Linear Accelerator 8/15/2007

Mini Tower Preliminary Results

Background sources update

Update of G4 simulation -- Development of Cosmic-Ray generator --

Analysis of GLAST Balloon Experiment Data

Overview of Beam Test Benoit, Ronaldo and Eduardo Nov 8 , 2005 thanks to Steve and Bill for helping to consolidate all the information.

electron/positron background flux models

Presentation transcript:

Analysis meeting 11July05 - T. Burnett 1 Status of the Background Review DC2 prep meeting: Switch to CRflux package by Mizuno for charged particles, Earth by Petrie for gamma Report on 8 sampled orbit-seconds from default orbit: indicated that the rate is 8 kHz, downlink 450 Hz. NOTE: this was a preliminary status, not a prediction! Reason for 2X increase from PDR seems to be trapped positrons. Update here: ~80 sampled seconds from full DC2 orbit Analysis of trigger bits

Analysis meeting 11July05 - T. Burnett 2 The electrons and positron fluxes: Mizuno’s plots positrons electrons lowmediumhigh Geomagnetic latitude

Analysis meeting 11July05 - T. Burnett 3 Electrons and positrons Questions: Why the big asymmetry? Why are fluxes so large? Why is it isotropic? How does the flux depend on altitude? Why is the flux largest at low geomagnetic latitudes? The model: Secondary particles generated by primary protons near geomagnetic poles, were flux is highest E-W effect explains the charge asymmetry: protons are curving down due to field, positive secondaries bend up, negative down. Secondaries are then trapped by field, accumulate in flux tubes: explains large flux (multiple traversals of a target by single particle) isotropy. Largest near equator? Data only at Shuttle altitude, AMS: does it increase??

Analysis meeting 11July05 - T. Burnett 4 Breakdown of filter output according to source 1/100 sampling of an orbit All “triggers”, no throttle, includes “LOCAL” run: second # after launch (~6000 runs/orbit) Filter rate

Analysis meeting 11July05 - T. Burnett 5 What about those trigger rates? 8 kHz is unacceptable, 25  s deadtime  20% loss Oops, it included LOCAL only, contributing ~800 Hz LOCAL is not currently valid, due to use of calibration constants How about that throttle! Kill a TKR if: “Ritz”: ACD tile associated with triggering tower fires [carefully implemented in code by David Wren]  2.2 kHz (preliminary, of course) “Atwood”: ACD and no LOCAL.  2.0 kHz (ditto)

Analysis meeting 11July05 - T. Burnett 6 Ongoing stuff at UW Better (automatic) trigger bit analysis Finish classification trees Define set for PSF/Aeff analysis Allow analysis of throttle implication for Aeff More data! First orbit is flawed, trigger bits were not saved Second orbit almost ready