Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/201203/read-cal-2012-2.pdf Äàòà èçìåíåíèÿ: Tue May 13 17:40:14 2014 Äàòà èíäåêñèðîâàíèÿ: Wed Apr 13 13:31:40 2016 Êîäèðîâêà: Ïîèñêîâûå ñëîâà: òåìñôé÷éóôóëïå ä÷éöåîéå

Background Working Group (BGWG)
The EPIC Background working group was founded in 2005 to provide users with clear information on the EPIC Background and (SAS)-Tools to treat the EPIC Background correctly for various scenarios. · Blank Sky (BS) Files (all-EPIC imaging mode, and pn timing mode) · Solar Wind Charge Exchange (SWCX) contamination · Filter Wheel Closed (FWC) data · Extended Source Analysis Software (ESAS) · MOS CCD Noise · + User resources (files, tasks, scripts, info, advice, papers) UG: `The UG congratulates the SOC, Instrument Teams, Background Working Group (BGWG), SAS developers also from SSC for the tremendous work done on the different aspects of the calibration, background analysis and SAS development.'





Blank Sky Files ­ All-EPIC Imaging
· Very popular - 500+ requests processed, 100 individual users · Link to table of all requests now available ­ users can obtain previous BS files · Future possibility of selecting on observations with/without noisy MOS CCDs · Blank Sky threads and improved scripts on BGWG web pages

(JC/AR)


Blank Sky Files ­ pn Timing
· Scanned whole dataset of timing mode
observations · Checked if they are really blank (~30 observations `non-strict', ~16 `strict') · Found source contamination and subtracted it · PN TI Blank Sky BG seen to scale with instrumental BG (RGS) · Aim to: · Create templates for different BG conditions, to extract the PN TI BG · Normalization of the templates with the 12-15 keV continuum or with help of the copper line intensity · Testing on a sample of obscured XRBs

(BM+)


SWCX
· SWCX - Solar Wind Charge eXchange · Almost whole mission analysed (MOS - FF) · Variable SWCX-affected observations (~3% of all obs.) linked to from EPIC BGWG main pages · Links to individual spectra and lightcurves · Link to info for all observations used in the study

(JC/AR/SSe)


Filter Wheel Closed (FWC) Files
· Stacked collections of data in FWC available
for MOS (FF) and pn (all modes) · Repository updated once per year, before BGWG/BOC/UG (updated February 2012, including data up to December 2011) · Light curve of EPIC-pn TI mode has been fixed by placing a cut on PI>300eV · New events, files and plots added to web pages
0.2 ­ 10 keV

(IdC)
1. ­ 2. keV

7.8 ­ 8.2 keV PN Full Frame 7.3 ­ 7.6 keV


ESAS in SAS
· ESAS ­ Extended Source Analysis System
(SSn/KK) · Now fully working in SAS on MOS and pn · Now no stand-alone version of ESAS · Need to make ESAS more conforming to the SAS: · To be rewritten in F90/C++, · with CAL-DB moving to normal CCFs (large effort ­ 125->25 files) · For next release: · MOS processing uses 5eV binning · Adaptive smoothing for additional info

(CG/SSn/KK)


MOS CCD Noise
·`Switchpoints' between
noise states occur predominantly at times of high radiation ·All tests to `switch' CCD noise state (sequencer restarts, high-radiation) failed ·No clues to why particular high-rad observations `switch' ­ huge range in accumulated radiation dose between switches ·Technical Note written ·M2C5 still noisy/clean, after switch to secondary electronics mode, but noisy less often (last ~500 rev) ­ other chips different

(AR)


Sco X-1
·Slew (pn) ·Source ~3deg across ·Useful for stray light analysis


End