Absolute throughput calibration of multiple spherical crystals for the Orion High-REsolution X-ray spectrometer (OHREX)
[1];
[1];
[1];
[1];
[3];
[1];
[1]
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Directorate of Research and Applied Science (United Kingdom)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); NASA Goddard Inst. for Space Studies (GISS), New York, NY (United States); Max Planck Inst. fuer Kernphysik, Heidelberg (Germany)
We present absolute throughput analysis of several crystals for the Orion High-REsolution X-ray (OHREX) imaging crystal spectrometer using ray tracing and experimental measurements. The OHREX spectrometer is a high-resolution x-ray spectrometer designed to measure spectral line shapes at the Orion laser facility. The spectrometer is fielded with up to two spherical crystals simultaneously covering two independent spectral ranges. Each crystal has a nominal radius of curvature of R = 67.2 cm and is fielded at a nominal Bragg angle of 51.3°. To cover different bands of interest, several different crystals are available, including Ge (111), KAP, and several cuts of quartz, whose resolving power λ/Δλ exceeds 10 000. The calibrated response of the available crystals has previously been reported from measurements at the EBIT-I electron beam ion trap at Lawrence Livermore National Laboratory. Here, we model the absolute throughput of each crystal using ray tracing and verify the results using experimental data for the quartz $$(10\bar{1}1)$$ crystal.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1769129
- Alternate ID(s):
- OSTI ID: 1765927
- Report Number(s):
- LLNL-JRNL-818089; 1028409; TRN: US2207236
- Journal Information:
- Review of Scientific Instruments, Vol. 92, Issue 2; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Calibration of the OHREX high-resolution imaging crystal spectrometer at the Livermore electron beam ion traps
Recent enhancements in the performance of the Orion high-resolution x-ray spectrometers