Design and fabrication of a window for the gas Cherenkov detector 3

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4961156· OSTI ID:22596476

Bingham, D. A.; Cartelli, M. D.; Griego, J. R.; Herrmann, H. W.; Lopez, F. E.; Oertel, J. A. ^[1]; DiDomizio, R. A.; Pollack, M. J. ^[2]

---

1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. EnvirOptics, Inc., Colmar, Pennsylvania 18915 (United States)

The gas Cherenkov detector 3 was designed at Los Alamos National Laboratory for use in inertial confinement fusion experiments at both the Omega Laser Facility and the National Ignition Facility. This instrument uses a low-Z gamma-to-electron convertor plate and high pressure gas to convert MeV gammas into UV/visible Cherenkov photons for fast optical detection. This is a follow-on diagnostic from previous versions, with two notable differences: the pressure of the gas is four times higher, and it allows the use of fluorinated gas, requiring metal seals. These changes force significant changes in the window component, having a unique set of requirements and footprint limitations. The selected solution for this component, a sapphire window brazed into a stainless steel flange housing, is described.

• OSTI ID: 22596476
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHERENKOV COUNTERS
DESIGN
ELECTRONS
FABRICATION
FLANGES
GAMMA DETECTION
IGNITION
INERTIAL CONFINEMENT
LANL
LASERS
LOS ALAMOS
METALS
MEV RANGE
PHOTONS
SAPPHIRE
STAINLESS STEELS
WINDOWS