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Slow Wire Scanner Beam Profile Measurement For LEDA.

DE2001755909

Publication Date	2000
Personal Author	O'Hara, J. F.; Gilpatrick, J. D.; Day, L. A.; Kamperschroer, J. H.; Madsen, D. W.
Page Count	11
Abstract	The Low Energy Demonstration Accelerator (LEDA), located at Los Alamos National Laboratory, utilizes a slow wire scanner to measure beam profiles. The beam energy is 6.7 MeV and the peak current is 100 mA. This wire scanner profile measurement is located in the High Energy Beam Transport (HEBT) section of the LEDA beam line. This section of beam line is used to expand the proton beam coming out of the LEDA Radio Frequency Quadrupole (RFQ) prior to impacting the beam-stop. The purpose of the scanner is to provide horizontal and vertical beam profiles. The wires or fibers are a Silicon Carbide (SiC) material, and are attached to an actuator driven by a stepping motor. The actuator drives the fibers through the beam in incremental steps. At each step, the amount of secondary electrons generated by the interactions of the proton beam and the wire are measured. From these incremental measurements the beam profile is constructed. This paper will discuss the operation of the scanner, two of the experiments conducted to understand the capability of the SiC wire to survive and some of the different uses of the beam profile data acquired during the ongoing commissioning of LEDA.
Keywords	Beam scanners Scanner operation Wire survivability Fiber heating Low Energy Demonstration Accelerator(LEDA) Beam profiles Design Performance Slow wire scanner
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Kansas City Plant, Kansas City, MO (US); Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200124
Contract Number	AC04-76DP00613

Slow Wire Scanner Beam Profile Measurement For LEDA.

Slow Wire Scanner Beam Profile Measurement For LEDA.
DE2001755909

Publication Date	2000
Personal Author	O'Hara, J. F.; Gilpatrick, J. D.; Day, L. A.; Kamperschroer, J. H.; Madsen, D. W.
Page Count	11
Abstract	The Low Energy Demonstration Accelerator (LEDA), located at Los Alamos National Laboratory, utilizes a slow wire scanner to measure beam profiles. The beam energy is 6.7 MeV and the peak current is 100 mA. This wire scanner profile measurement is located in the High Energy Beam Transport (HEBT) section of the LEDA beam line. This section of beam line is used to expand the proton beam coming out of the LEDA Radio Frequency Quadrupole (RFQ) prior to impacting the beam-stop. The purpose of the scanner is to provide horizontal and vertical beam profiles. The wires or fibers are a Silicon Carbide (SiC) material, and are attached to an actuator driven by a stepping motor. The actuator drives the fibers through the beam in incremental steps. At each step, the amount of secondary electrons generated by the interactions of the proton beam and the wire are measured. From these incremental measurements the beam profile is constructed. This paper will discuss the operation of the scanner, two of the experiments conducted to understand the capability of the SiC wire to survive and some of the different uses of the beam profile data acquired during the ongoing commissioning of LEDA.
Keywords	Beam scanners Scanner operation Wire survivability Fiber heating Low Energy Demonstration Accelerator(LEDA) Beam profiles Design Performance Slow wire scanner
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Kansas City Plant, Kansas City, MO (US); Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200124
Contract Number	AC04-76DP00613