Use of diamond sensors for a high-flux, high-rate X-ray pass-through diagnostic

Journal Article · Mon Apr 25 00:00:00 EDT 2022 · Journal of Synchrotron Radiation (Online)

DOI:https://doi.org/10.1107/S1600577522003022· OSTI ID:1864909

Bohon, J.; Gonzalez, E.; Grace, C.; Harris, C. T.; Jacobsen, B.; Kachiguine, S. ; Kim, D.; MacArthur, J.; Martinez-McKinney, F.; Mazza, S.; Nizam, M. ; Norvell, N.; Padilla, R.; Potter, E.; Prakash, T.; Prebys, E.; Ryan, E.; Schumm, B. A. ; Smedley, J.; Stuart, D. ; Tarka, M. ; Torrecilla, I. S.; Wilder, M.; Zhu, D.

X-ray free-electron lasers (XFELs) deliver pulses of coherent X-rays on the femtosecond time scale, with potentially high repetition rates. While XFELs provide high peak intensities, both the intensity and the centroid of the beam fluctuate strongly on a pulse-to-pulse basis, motivating high-rate beam diagnostics that operate over a large dynamic range. The fast drift velocity, low X-ray absorption and high radiation tolerance properties of chemical vapour deposition diamonds make these crystals a promising candidate material for developing a fast (multi-GHz) pass-through diagnostic for the next generation of XFELs. A new approach to the design of a diamond sensor signal path is presented, along with associated characterization studies performed in the XPP endstation of the LINAC Coherent Light Source (LCLS) at SLAC. Qualitative charge collection profiles (collected charge versus time) are presented and compared with those from a commercially available detector. Quantitative results on the charge collection efficiency and signal collection times are presented over a range of approximately four orders of magnitude in the generated electron-hole plasma density.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies (CINT); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: SC0010107; 89233218CNA000001; NA-0003525; AC02-76SF00515; LFR-20-653232; NA0003525; AC02-05CH11231
• OSTI ID: 1864909
• Alternate ID(s): OSTI ID: 1871550; OSTI ID: 1881466
• Journal Information: Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Vol. 29 Journal Issue: 3; ISSN 1600-5775
• Publisher: International Union of Crystallography (IUCr)
• Country of Publication: Denmark
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
diamond sensors
high-rate diagnostics
high-flux diagnostics