Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/33101
DC Field | Value | Language |
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dc.contributor.author | SPIGA, Daniele | en_US |
dc.contributor.author | SALMASO, Bianca | en_US |
dc.contributor.author | BASSO, Stefano | en_US |
dc.date.accessioned | 2023-02-01T13:23:19Z | - |
dc.date.available | 2023-02-01T13:23:19Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/33101 | - |
dc.description.abstract | The purpose of this brief technical note is to provide an assessment of the performance of the tungsten pinhole placed in front of the microfocus Incoatec X-ray source with Titanium anode in the BEaTriX X-ray facility. The pinhole is a part of the collimator kit by Amptek purchased years ago to collimate a solid-state detector, and consists of a small (1/2 inch) tungsten disk with a 2.2 mm thickness and a 450 μm diameter. The pinhole is placed at a 20 mm distance from the source and limits the beam along the short arm of the facility, avoiding so the X-ray incidence on the tube walls which might cause unwanted X-ray reflection/scattering or diffuse background. At the same time, the pinhole located near the X-ray source provides visual reference for the parabolic mirror alignment. Pinholes are crucial optical components, as they have to diaphragm an X-ray beam without degrading it. Due to the closeness of the lateral walls of the pinhole to the X-rays, the surface has to be properly ruggedized in order to avoid unwanted reflections or diffuse scattering when X-rays impinge on it in grazing incidence conditions. Should this condition not be fulfilled, the pinhole would cause a broadening of the X- ray source and a consequent worsening of the finally collimated X-ray beam in BEaTriX. In this short note, we will show measurements of the X-ray beam in the BEaTriX facility aiming at ascertaining the scattering properties of the pinhole surface. The conclusion is that the amount of scattered/reflected radiation off the pinhole is hardly detectable and that the pinhole appears perfectly suitable for the collimation of the X-ray beam in the short arm of BEaTriX. | en_US |
dc.language.iso | eng | en_US |
dc.title | Modeling and measurement of the scattering properties of the source pinhole in the BEaTriX facility | en_US |
dc.type | Research report | - |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | INAF-OAB internal report 2021/04 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.numberofauthors | 3 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 298 Altro | - |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_17 Instrumentation – telescopes, detectors and techniques | en_US |
dc.contributor.reviewer | SALMASO, Bianca | en_US |
dc.contributor.approved | SALMASO, Bianca | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Research report | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0003-1163-7843 | - |
crisitem.author.orcid | 0000-0002-8150-4846 | - |
crisitem.author.orcid | 0000-0002-2342-5090 | - |
Appears in Collections: | 4.03 Rapporti di progetto |
Files in This Item:
File | Description | Size | Format | |
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IR_OAB_2021_04.pdf | FULL TEXT | 3.59 MB | Adobe PDF | View/Open |
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