{"id":2440,"date":"2023-05-26T12:43:12","date_gmt":"2023-05-26T11:43:12","guid":{"rendered":"https:\/\/ahead.iaps.inaf.it\/?page_id=2440"},"modified":"2023-05-26T12:54:21","modified_gmt":"2023-05-26T11:54:21","slug":"laboratory-astrophysics","status":"publish","type":"page","link":"https:\/\/ahead.iaps.inaf.it\/?page_id=2440","title":{"rendered":"Laboratory Astrophysics"},"content":{"rendered":"<p style=\"font-weight: 400; text-align: center;\"><span style=\"font-size: 14pt; color: #3366ff;\"><strong>Experimental validation of physical processes relevant to ATHENA background<\/strong><\/span><\/p>\n<p style=\"font-weight: 400; text-align: justify;\">The ATHENA X-ray observatory Silicon Pore Optics (SPO) telescope will potentially funnel protons onto the detector and deposit energies comparable to the X-ray of interest being measured. In order to better simulate this contribution to the background, the scattering efficiency and energy loss of soft protons onto an ATHENA\/SPO target were measured in the laboratory.<br \/>\nThis plot shows the scattering efficiency measured as a function of scattering angles, of grazing 50keV protons for several incidence angles \u03c8 in the range 0.1\u00b0-1\u00b0.<\/p>\n<p style=\"font-weight: 400; text-align: center;\"><span style=\"font-size: 14pt; color: #3366ff;\"><strong><a href=\"http:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/ATHENA-bkg.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2444\" src=\"http:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/ATHENA-bkg.png\" alt=\"\" width=\"746\" height=\"574\" srcset=\"https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/ATHENA-bkg.png 1139w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/ATHENA-bkg-300x231.png 300w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/ATHENA-bkg-1024x788.png 1024w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/ATHENA-bkg-768x591.png 768w\" sizes=\"auto, (max-width: 746px) 100vw, 746px\" \/><\/a><\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400; text-align: center;\"><span style=\"font-size: 14pt; color: #3366ff;\"><strong>Measurements of wavelengths and cross sections of inner-shell transitions<\/strong><\/span><\/p>\n<p style=\"font-weight: 400; text-align: justify;\">Observations by the coming and future high resolution X-ray spectroscopic instruments in space onboard XRISM and ATHENA observatories will reveal a large number of lines of elements in various ionization states. Laboratory studies of elements of astrophysical interest will be required to analyze these new data.<br \/>\nMeasurements of the resonance energies of the ionized oxygen OV Ka transition were carried for both the main (O16) and secondary (O18) isotopes during a first run at the Elettra synchrotron (Trieste) during the first semester of 2022. An Electron Beam Ion Trap (EBIT) provided the highly ionized elements. The measurements allowed to resolve the isotope-shift of the resonance energy \u2206E<sub>Shift<\/sub> = 3.9 \u00b1 1.8 meV (EO18 \u2212 EO16 ) by subtracting the two centroid values of the resonance energy plots.<\/p>\n<p><a href=\"http:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image5.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2447\" src=\"http:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image5.png\" alt=\"\" width=\"831\" height=\"564\" srcset=\"https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image5.png 1163w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image5-300x204.png 300w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image5-1024x695.png 1024w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image5-768x521.png 768w\" sizes=\"auto, (max-width: 831px) 100vw, 831px\" \/><\/a><a href=\"http:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image14.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2448\" src=\"http:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image14.png\" alt=\"\" width=\"949\" height=\"391\" srcset=\"https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image14.png 1380w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image14-300x124.png 300w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image14-1024x422.png 1024w, https:\/\/ahead.iaps.inaf.it\/wp-content\/uploads\/2023\/05\/image14-768x317.png 768w\" sizes=\"auto, (max-width: 949px) 100vw, 949px\" \/><\/a><\/p>\n<div class=\"pdfprnt-buttons pdfprnt-buttons-page pdfprnt-bottom-right\"><a href=\"https:\/\/ahead.iaps.inaf.it\/index.php?rest_route=%2Fwp%2Fv2%2Fpages%2F2440&print=print\" class=\"pdfprnt-button pdfprnt-button-print\" target=\"_blank\" ><img decoding=\"async\" src=\"https:\/\/ahead.iaps.inaf.it\/wp-content\/plugins\/pdf-print\/images\/print.png\" alt=\"image_print\" title=\"Print Content\" \/><\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>Experimental validation of physical processes relevant to ATHENA background The ATHENA X-ray observatory Silicon Pore Optics (SPO) telescope will potentially funnel protons onto the detector and deposit energies comparable to the X-ray of interest being measured. In order to better simulate this contribution to the background, the scattering efficiency and energy loss of soft protons &#8230; <a title=\"Laboratory Astrophysics\" class=\"read-more\" href=\"https:\/\/ahead.iaps.inaf.it\/?page_id=2440\" aria-label=\"Read more about Laboratory Astrophysics\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2440","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Laboratory Astrophysics &#183; AHEAD<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ahead.iaps.inaf.it\/?page_id=2440\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Laboratory Astrophysics &#183; AHEAD\" \/>\n<meta property=\"og:description\" content=\"Experimental validation of physical processes relevant to ATHENA background The ATHENA X-ray observatory Silicon Pore Optics (SPO) telescope will potentially funnel protons onto the detector and deposit energies comparable to the X-ray of interest being measured. 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