Past Spectrometer Projects

  1. Lawrence Livermore National Laboratory

Artep designed, fabricated, and calibrated several new reflection crystal modules for the NXS spectrometer. The high-quality quartz or silicon crystals were mounted on an elliptical bending form using a mechanical technique that results in improved bending quality.

  1. Lawrence Livermore National Laboratory

Artep absolutely calibrated several NIF SuperSnout I and II x-ray reflection crystal spectrometers and several NXS crystal modules. This included measuring the absolute sensitivity, the spectral resolution, and the effects of off-pointing the spectrometer axis from the x-ray source.


 

  1. Lawrence Livermore National Laboratory

Artep assembled a vacuum calibration chamber and x-ray source for the calibration of x-ray spectrometers up to 30 keV energy. The NIF Survey Spectrometer (NSS), also designed and fabricated by Artep, was calibrated and was successfully deployed on NIF for recording high-energy x-ray spectra. A replica of the vacuum calibration system will be fabricated, assembled, tested, and delivered to LLNL for calibrations of NIF x-ray spectrometers and other sensors.

2015. Lawrence Livermore National Laboratory:

Artep designed and manufactured a Dual Crystal Spectrometer composed of two transmission crystal channels. The Low Energy Spectrometer (LES) covers the 8 -40 keV x-ray energy range and the High Energy Spectrometer (HES) covers the 20 – 120 keV range. The instrument is designed for vacuum deployment on a DOE-standard Ten Inch Manipulator (TIM) or a stand-alone platform.

2015 August DCS

  1. Los Alamos National Laboratory:

Artep designed and manufactured a Dual Spectrometer Alignment Cart for deploying two spectrometers at the Penn State University nuclear reactor for nuclear fuel forensics studies in the 37 – 600 keV energy range. Each of the two spectrometers can view a fuel rod through an Artep tungsten door as described below.


2015 July LANL cart

  1. Los Alamos National Laboratory:

Artep designed and manufactured a 200 pound tungsten door to fit on a lead cast at the Penn State University nuclear reactor for fuel rod forensic studies. The door has three openings for accessing the fuel rod inside the lead cask and fixtures for aligning x-ray spectrometers to the tungsten door and the nuclear fuel rod.

2015 May W door

  1. Sandia National Laboratories:

Artep designed and manufactured three x-ray spectrometers to fit within a SNL tungsten shielding box. Each spectrometer has three interchangeable quartz diffraction crystals that are pre-aligned on kinematic mounts.  The spectrometers were deployed at the SNL Z pulsed-power generator and recorded high-resolution spectra in the 10 – 80 keV range. The absolute sensitivities of each spectrometer and each of crystal were accurately measured.


2015 January SNL

 

  1. Rutherford Appleton Laboratory, England:

Artep designed and manufactured an x-ray spectrometer having two interchangeable diffraction crystals on kinematic mounts and four image plate detector positions. The two crystals cover the 17 – 90 keV and 40-220 keV x-ray energy ranges.

2014 November Rutherford

2012 – 2015. Lawrence Livermore National Laboratory:

Over a three-year period, Artep designed, manufactured, and absolutely calibrated the NIF Survey Spectrometer (NSS) for deployment in a Dozen Inch Manipulator (DIM) inside the NIF laser chamber. The spectrometer was provided with seven crystal bending frames on pre-aligned kinematic mounts, each holding two different types of diffraction crystals that are selected from a supply of five different crystal cuts capable of recording high-resolution spectra in the 8 – 150 keV range. For a spectroscopic experiment, the operator can mount in the spectrometer two bending frames holding four different crystals with specific energy coverage and spectral resolution capabilities.

2012 April NSS

  1. Laboratory for Laser Energetics:

Artep designed and manufactured a Transmission Crystal Spectrometer (TCS) for in-vacuum deployment in a DOE-standard TIM instrument manipulator. The spectrometer has four image plate detector positions for simultaneously recording spectra in the 17 – 90 keV having both high spectral resolution and high source-size spatial resolution.

2012 May LLE TCS

  1. Los Alamos National Laboratory:

Artep designed and manufactured a high-resolution spectrometer that was used to record the x-ray spectra and low-energy gamma ray spectra from nuclear fuel rods for forensic studies. Two pre-aligned and interchangeable diffraction crystals on kinematic mounts cover the 37 – 140 keV and 58-237 keV x-ray energy ranges.

2012 April LANL

  1. Lawrence Livermore National Laboratory:

Artep designed and manufactured a pulsed x-ray source for testing the operations and timing of x-ray streak cameras. The system included a Marx generator that conveyed a 300 kV peak voltage pulse to a field emission x-ray tube along with the associated power supply and control electronics. The x-ray pulse had peak intensity at approximately 10 keV and few nanosecond rise time.

2010 x-ray source

  1. Lawrence Livermore National Laboratory:

Artep designed and manufactured a Gamma-Ray Crystal Spectrometer (GCS) covering the 60 – 662 keV energy range. The spectrometer contained massive tungsten slit jaws and apertures as well as strong permanent magnets to deflect energetic electrons away from the detector. The spectrometer was tested by recording the W K-shell spectral lines near 60 keV and the 662 keV gamma spectrum from a Cs-137 radioactive source. The spectrometer recorded the K-shell spectra of heavy elements produced at DOE laser laboratories.

2010 GCS

  1. Lawrence Livermore National Laboratory:

Artep custom designed and manufactured an in-vacuum hard x-ray Lawrence Livermore Crystal Spectrometer (LLCL) covering the 17-100 keV energy range. The spectrometer has two nosecones for 60 cm and 120 cm source to crystal standoff distances and two image plate detector positions. The crystal’s integrated reflectivity was absolutely calibrated to 5% accuracy.

2010 LLCS

  1. Laboratoire LULI, France.
  2. CELIA – Universite Boredeaux, France.
  3. Lawrence Livermore National Laboratory #1.
  4. Lawrence Livermore National Laboratory #2.

Artep designed and manufactured four replica in-vacuum Transmission Crystal Spectrometers (TCS) covering the 12 – 68 keV range at 25 cm source to crystal

standoff distance and 17 to 100 keV at 60 cm standoff distance. These spectrometers became the high-intensity laser facilities’ standard diagnostic for recording high-resolution hard x-ray spectra.

 2009 CELIA TCS

  1. Laboratory for Laser Energetics/NNSA:

Artep designed, manufactured, tested, and fielded at the LLE laser facility a high-resolution Electronic Crystal Spectrometer (ECS) having both a CMOS electronic detector and three image plate detectors. The energy coverage is 12 – 115 keV with up to 1,800 resolving power.

2008 ECS