Hot electron measurements in ignition relevant Hohlraums on the National Ignition Facility

E L Dewald; C Thomas; S Hunter; L Divol; N Meezan; S H Glenzer; L J Suter; E Bond; J L Kline; J Celeste; D Bradley; P Bell; R L Kauffman; J Kilkenny; O L Landen

doi:10.1063/1.3478683

Hot electron measurements in ignition relevant Hohlraums on the National Ignition Facility

Rev Sci Instrum. 2010 Oct;81(10):10D938. doi: 10.1063/1.3478683.

Authors

E L Dewald¹, C Thomas, S Hunter, L Divol, N Meezan, S H Glenzer, L J Suter, E Bond, J L Kline, J Celeste, D Bradley, P Bell, R L Kauffman, J Kilkenny, O L Landen

Affiliation

¹ Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA. dewald3@llnl.gov

PMID: 21033965
DOI: 10.1063/1.3478683

Abstract

On the National Ignition Facility (NIF), hot electrons generated in laser heated Hohlraums are inferred from the >20 keV bremsstrahlung emission measured with the time integrated FFLEX broadband spectrometer. New high energy (>200 keV) time resolved channels were added to infer the generated >170 keV hot electrons that can cause ignition capsule preheat. First hot electron measurements in near ignition scaled Hohlraums heated by 96-192 NIF laser beams are presented.