Los Alamos contribution to target diagnostics on the National Ignition Facility

Conference · Fri Jul 01 04:00:00 EDT 1994

OSTI ID:10163032

Mack, J M; Baker, D A; Caldwell, S E ^[1]

---

1. and others

The National Ignition Facility (NIF) will have a large suite of sophisticated target diagnostics. This will allow thoroughly diagnosed experiments to be performed both at the ignition and pre-ignition levels. As part of the national effort Los Alamos National Laboratory will design, construct and implement a number of diagnostics for the NIF. This paper describes Los Alamos contributions to the ``phase I diagnostics.`` Phase I represents the most fundamental and basic measurement systems that will form the core for most work on the NIF. The Los Alamos effort falls into four categories: moderate to hard X-ray (time resolved imaging neutron spectroscopy- primarily with neutron time of flight devices; burn diagnostics utilizing gamma ray measurements; testing measurement concepts on the TRIDENT laser system at Los Alamos. Because of the high blast, debris and radiation environment, the design of high resolution X-ray imaging systems present significant challenges. Systems with close target proximity require special protection and methods for such protection is described. The system design specifications based on expected target performance parameters is also described. Diagnosis of nuclear yield and burn will be crucial to the NIF operation. Nuclear reaction diagnosis utilizing both neutron and gamma ray detection is discussed. The Los Alamos TRIDENT laser system will be used extensively for the development of new measurement concepts and diagnostic instrumentation. Some its potential roles in the development of diagnostics for NIF are given.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10163032
• Report Number(s): LA-UR--94-1883; CONF-940630--16; ON: DE94014474
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320
700411
DIAGNOSTIC TECHNIQUES
INERTIAL CONFINEMENT
INERTIAL CONFINEMENT DEVICES
LASER TARGETS
NEUTRON DETECTION
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
TIME-OF-FLIGHT METHOD
X-RAY DETECTION