ERL2013 - List of Authors (Fite, J.M.)

Paper

Title

Page

Instrumentation Designs for Beam Distribution Measurements in the ERL Beam Dump at BNL

108

T.A. Miller, S. Bellavia, I. Ben-Zvi, J.M. Fite, D.M. Gassner
BNL, Upton, Long Island, New York, USA

The R&D Energy Recover Linac (ERL) at Brookhaven National Laboratory is undergoing continued development in parallel with piece-wise commissioning efforts as installation of each subsystem is completed. While the machine is planned to be operated at low intensity and short low frequency pulses during the commissioning phases, on going design efforts continue to provide a solution to measure the beam distribution inside the high power electron beam dump using several parallel methods. For low power measurements, this includes a new rad-hard version of long 7/8" heliax ion chambers that encage the dump both in circular and axial directions. For high power measurements, this includes both "pinhole" like multipoint imaging of the dump with ion chambers positioned over an array of holes drilled in the shielding around the beam dump and an Infrared imaging system to peer through an upstream bending magnet in the extraction line to monitor the temperature distribution on the target surface inside the dump. This paper presents the design details of these three systems that work to ensure the proper distribution of the high power electron beam on the target in an effort to avoid reaching the thermal limit of the water cooled beam dump.

Poster PS14 [21.016 MB]

Paper	Title	Page
PS14	Instrumentation Designs for Beam Distribution Measurements in the ERL Beam Dump at BNL	108
	T.A. Miller, S. Bellavia, I. Ben-Zvi, J.M. Fite, D.M. Gassner BNL, Upton, Long Island, New York, USA
	The R&D Energy Recover Linac (ERL) at Brookhaven National Laboratory is undergoing continued development in parallel with piece-wise commissioning efforts as installation of each subsystem is completed. While the machine is planned to be operated at low intensity and short low frequency pulses during the commissioning phases, on going design efforts continue to provide a solution to measure the beam distribution inside the high power electron beam dump using several parallel methods. For low power measurements, this includes a new rad-hard version of long 7/8" heliax ion chambers that encage the dump both in circular and axial directions. For high power measurements, this includes both "pinhole" like multipoint imaging of the dump with ion chambers positioned over an array of holes drilled in the shielding around the beam dump and an Infrared imaging system to peer through an upstream bending magnet in the extraction line to monitor the temperature distribution on the target surface inside the dump. This paper presents the design details of these three systems that work to ensure the proper distribution of the high power electron beam on the target in an effort to avoid reaching the thermal limit of the water cooled beam dump.
	Poster PS14 [21.016 MB]