A novel approach in the free-electron laser diagnosis based on a pixelated phosphor detector

被引：4

作者：

Matruglio, Alessia ^{[1
,2
]}

Dal Zilio, Simone ^{[1
]}

Sergo, Rudi ^{[3
]}

Mincigrucci, Riccardo ^{[4
,5
]}

Svetina, Cristian ^{[2
,6
]}

Principi, Emiliano ^{[4
]}

Mahne, Nicola ^{[6
]}

Raimondi, Lorenzo ^{[6
]}

Turchet, Alessio ^{[7
]}

Masciovecchio, Claudio ^{[4
]}

Lazzarino, Marco ^{[1
]}

Cautero, Giuseppe ^{[3
]}

Zangrando, Marco ^{[1
,6
]}

机构：

[1] CNR, IOM Lab Nazl TASC, I-34149 Trieste, Italy

[2] Univ Trieste, Grad Sch Nanotechnol, I-34127 Trieste, Italy

[3] Elettra Sincrotrone Trieste, Detector & Instrumentat Lab, I-34149 Trieste, Italy

[4] Elettra Sincrotrone Trieste, Beamlines Spect Scattering, I-34149 Trieste, Italy

[5] Univ Perugia, Dipartimento Fis & Geol, I-06123 Perugia, Italy

[6] Elettra Sincrotrone Trieste, Mech Vacuum & Opt Engn, I-34149 Trieste, Italy

[7] Elettra Sincrotrone Trieste, Beamlines Microscopy Diffract, I-34149 Trieste, Italy

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2016年 / 23卷

关键词：

free-electron laser; detector; beam diagnosis; phosphors; pixelated phosphor detector; RAY; FERMI;

D O I：

10.1107/S1600577515019773

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new high-performance method for the free-electron laser (FEL) focused beam diagnosis has been successfully tested at the FERMI FEL in Trieste, Italy. The novel pixelated phosphor detector (PPD) consists of micrometric pixels produced by classical UV lithography and dry etching technique, fabricated on a silicon substrate, arranged in a hexagonal geometry and filled with suitable phosphors. It has been demonstrated that the overall resolution of the system has increased by reducing the diffusion of the light in the phosphors. Various types of PPD have been produced and tested, demonstrating a high resolution in the beam profile and the ability to measure the actual spot size shot-to-shot with an unprecedented resolution. For these reasons, the proposed detector could become a reference technique in the FEL diagnosis field.

引用

页码：29 / 34

页数：6

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