Nuclear assessment of final optics of a KrF laser driven fusion power plant

M. E. Sawan; M. W. McGeoch; A. Ibrahim; P. Wilson

doi:10.13182/FST07-A1614

Nuclear assessment of final optics of a KrF laser driven fusion power plant

M. E. Sawan, M. W. McGeoch, A. Ibrahim, P. Wilson

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

In the HAPL program, power plant designs are assessed with targets driven by 40 KrF laser beams. The final optics system that focuses the laser onto the target may include a grazing incidence metallic mirror (GIMM) located at 24 m from the target with 85° angle of incidence. The GIMM is in direct line of sight of the target and has a 50 micron thick aluminum coating. Two options were considered for the substrate material; SiC and AlBeMet. The impact of the GIMM design options on the nuclear environment at the dielectric focusing and turning mirrors was assessed. Using AlBeMet results in about a factor of two higher neutron flux. We considered beam duct configuration modifications such as utilizing neutron traps to reduce radiation streaming. In addition, we investigated the impact of lining the beam ducts and neutron traps with different materials that help slowing down and absorbing neutrons.

Original language	English
Pages (from-to)	938-942
Number of pages	5
Journal	Fusion Science and Technology
Volume	52
Issue number	4
DOIs	https://doi.org/10.13182/FST07-A1614
State	Published - Nov 2007
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.13182/FST07-A1614

Cite this

@article{4d6daa17b79a40d5bdc72c812a6f39aa,

title = "Nuclear assessment of final optics of a KrF laser driven fusion power plant",

abstract = "In the HAPL program, power plant designs are assessed with targets driven by 40 KrF laser beams. The final optics system that focuses the laser onto the target may include a grazing incidence metallic mirror (GIMM) located at 24 m from the target with 85° angle of incidence. The GIMM is in direct line of sight of the target and has a 50 micron thick aluminum coating. Two options were considered for the substrate material; SiC and AlBeMet. The impact of the GIMM design options on the nuclear environment at the dielectric focusing and turning mirrors was assessed. Using AlBeMet results in about a factor of two higher neutron flux. We considered beam duct configuration modifications such as utilizing neutron traps to reduce radiation streaming. In addition, we investigated the impact of lining the beam ducts and neutron traps with different materials that help slowing down and absorbing neutrons.",

author = "Sawan, {M. E.} and McGeoch, {M. W.} and A. Ibrahim and P. Wilson",

year = "2007",

month = nov,

doi = "10.13182/FST07-A1614",

language = "English",

volume = "52",

pages = "938--942",

journal = "Fusion Science and Technology",

issn = "1536-1055",

publisher = "Taylor and Francis Group",

number = "4",

}

TY - JOUR

T1 - Nuclear assessment of final optics of a KrF laser driven fusion power plant

AU - Sawan, M. E.

AU - McGeoch, M. W.

AU - Ibrahim, A.

AU - Wilson, P.

PY - 2007/11

Y1 - 2007/11

N2 - In the HAPL program, power plant designs are assessed with targets driven by 40 KrF laser beams. The final optics system that focuses the laser onto the target may include a grazing incidence metallic mirror (GIMM) located at 24 m from the target with 85° angle of incidence. The GIMM is in direct line of sight of the target and has a 50 micron thick aluminum coating. Two options were considered for the substrate material; SiC and AlBeMet. The impact of the GIMM design options on the nuclear environment at the dielectric focusing and turning mirrors was assessed. Using AlBeMet results in about a factor of two higher neutron flux. We considered beam duct configuration modifications such as utilizing neutron traps to reduce radiation streaming. In addition, we investigated the impact of lining the beam ducts and neutron traps with different materials that help slowing down and absorbing neutrons.

AB - In the HAPL program, power plant designs are assessed with targets driven by 40 KrF laser beams. The final optics system that focuses the laser onto the target may include a grazing incidence metallic mirror (GIMM) located at 24 m from the target with 85° angle of incidence. The GIMM is in direct line of sight of the target and has a 50 micron thick aluminum coating. Two options were considered for the substrate material; SiC and AlBeMet. The impact of the GIMM design options on the nuclear environment at the dielectric focusing and turning mirrors was assessed. Using AlBeMet results in about a factor of two higher neutron flux. We considered beam duct configuration modifications such as utilizing neutron traps to reduce radiation streaming. In addition, we investigated the impact of lining the beam ducts and neutron traps with different materials that help slowing down and absorbing neutrons.

UR - http://www.scopus.com/inward/record.url?scp=36348962969&partnerID=8YFLogxK

U2 - 10.13182/FST07-A1614

DO - 10.13182/FST07-A1614

M3 - Article

AN - SCOPUS:36348962969

SN - 1536-1055

VL - 52

SP - 938

EP - 942

JO - Fusion Science and Technology

JF - Fusion Science and Technology

IS - 4

ER -

Nuclear assessment of final optics of a KrF laser driven fusion power plant

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this