| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | marte3.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZ3r59YCT/GUhwT |
| Repository | sid.inpe.br/iris@1905/2005/07.29.01.26.48 (restricted access) |
| Last Update | 2013:04.04.13.34.05 (UTC) jefferson |
| Metadata Repository | sid.inpe.br/iris@1905/2005/07.29.01.27 |
| Metadata Last Update | 2018:06.06.04.14.20 (UTC) administrator |
| Secondary Key | INPE-5765-PRE/1926 |
| ISSN | 0018-9499 |
| Label | 7158 |
| Citation Key | CovaultGrinManaBrag:1991:TeReNo |
| Title | Techniques for removing non-uniform background in coded-aperture imaging on the energetic X-ray imaging telescope experiment  |
| Year | 1991 |
| Secondary Date | 19960325 |
| Month | Apr. |
| Access Date | 2024, May 01 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 5 KiB |
| 2. Context | |
| Author | 1 Covault, C. E. 2 Grindlay, J. E. 3 Manandhar, R. P. 4 Braga, Joao |
| Group | 1 DAS-INPE-BR 2 3 4 DAS-INPE-MCT-BR |
| Journal | IEEE Transactions on Nuclear Science |
| Volume | 38 |
| Number | 2 |
| Pages | 591-596 |
| History (UTC) | 2013-04-04 13:33:38 :: administrator -> jefferson :: 1991 2013-04-04 13:34:06 :: jefferson -> administrator :: 1991 2018-06-06 04:14:20 :: administrator -> marciana :: 1991 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | ASTROFISICA URA TELESCOPES |
| Abstract | The coded-aperture technique for reconstructing images for a position-sensitive detector looking through a stationary URA mask requires that the background illumination be distributed uniformly accross the surface of the detector. Non-uniformities in the background are typical of balloon and space-borne detectors, and introduce large artifacts into the reconstructed image, with a subsequent loss of signal-to-noise. Here we describe a technique, employed for the Energetic X-ray Imaging Telescope Experiment (EXITE) to remove the systematic effects of non-uniform background. We explore the time dependence of intensity and two-dimensional shape of the background detector image during the flight. We construct a "flat field" image from observations where x-rays sources were absent from the field of view. We demonstrate that this technique can successfully reduce RMS fluctuations to within a few percent of ideal Poisson statistics. |
| Area | CEA |
| Arrangement | urlib.net > Fonds > Produção anterior à 2021 > DIDAS > Techniques for removing... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | joao braga.pdf |
| User Group | administrator jefferson |
| Visibility | shown |
| Archiving Policy | denypublisher allowfinaldraft |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH |
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; IEEEXplore. |
| Host Collection | sid.inpe.br/banon/2001/04.03.15.36 |
| 6. Notes | |
| Empty Fields | affiliation alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format isbn lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |