New SRC APPLE ll Variable Polarization Beamline
Abstract
SRC has recently commissioned a new Varied Line-Spacing Plane Grating Monochromator (VLS-PGM) utilizing as its source a 1 m long APPLE II insertion device in short-straight-section 9 of the Aladdin storage ring. The insertion device reliably delivers horizontal, vertical, and right and left circularly polarized light to the beamline. Measurements from an in situ polarimeter can be used for undulator corrections to compensate for depolarizing effects of the beamline. The beamline has only three optical elements and covers the energy range from 11.1 to 270 eV using two varied line-spacing gratings. A plane mirror rotates to illuminate the gratings at the correct angle to cancel the defocus term at all photon energies. An exit slit and elliptical-toroid refocusing mirror complete the beamline. Using a 50 {mu}m exit slit, the beamline provides moderate to high resolution, with measured flux in the mid 10{sup 12} (photons/s/200 mA) range, and a spot size of 400 {mu}m horizontal by 30 {mu}m vertical.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE SC OFFICE OF SCIENCE (SC)
- OSTI Identifier:
- 1041759
- Report Number(s):
- BNL-97437-2012-JA
Journal ID: ISSN 0168-9002; NIMAER; TRN: US1202704
- DOE Contract Number:
- DE-AC02-98CH10886
- Resource Type:
- Journal Article
- Journal Name:
- Nuclear Instruments and Methods in Physics Research, Section A
- Additional Journal Information:
- Journal Volume: 649; Journal Issue: 1; Journal ID: ISSN 0168-9002
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; APPLES; CORRECTIONS; ELEMENTS; ENERGY RANGE; EQUIPMENT; GRATINGS; MIRRORS; MONOCHROMATORS; PHOTONS; POLARIMETERS; POLARIZATION; RANGE; RESOLUTION; SIZE; STORAGE RINGS; VISIBLE RADIATION; WIGGLER MAGNETS
Citation Formats
Severson, M, Bissen, M, Fisher, M, Rogers, G, Reininger, R, Green, M, Eisert, D, and Tredinnick, B. New SRC APPLE ll Variable Polarization Beamline. United States: N. p., 2011.
Web. doi:10.1016/j.nima.2010.12.029.
Severson, M, Bissen, M, Fisher, M, Rogers, G, Reininger, R, Green, M, Eisert, D, & Tredinnick, B. New SRC APPLE ll Variable Polarization Beamline. United States. https://doi.org/10.1016/j.nima.2010.12.029
Severson, M, Bissen, M, Fisher, M, Rogers, G, Reininger, R, Green, M, Eisert, D, and Tredinnick, B. 2011.
"New SRC APPLE ll Variable Polarization Beamline". United States. https://doi.org/10.1016/j.nima.2010.12.029.
@article{osti_1041759,
title = {New SRC APPLE ll Variable Polarization Beamline},
author = {Severson, M and Bissen, M and Fisher, M and Rogers, G and Reininger, R and Green, M and Eisert, D and Tredinnick, B},
abstractNote = {SRC has recently commissioned a new Varied Line-Spacing Plane Grating Monochromator (VLS-PGM) utilizing as its source a 1 m long APPLE II insertion device in short-straight-section 9 of the Aladdin storage ring. The insertion device reliably delivers horizontal, vertical, and right and left circularly polarized light to the beamline. Measurements from an in situ polarimeter can be used for undulator corrections to compensate for depolarizing effects of the beamline. The beamline has only three optical elements and covers the energy range from 11.1 to 270 eV using two varied line-spacing gratings. A plane mirror rotates to illuminate the gratings at the correct angle to cancel the defocus term at all photon energies. An exit slit and elliptical-toroid refocusing mirror complete the beamline. Using a 50 {mu}m exit slit, the beamline provides moderate to high resolution, with measured flux in the mid 10{sup 12} (photons/s/200 mA) range, and a spot size of 400 {mu}m horizontal by 30 {mu}m vertical.},
doi = {10.1016/j.nima.2010.12.029},
url = {https://www.osti.gov/biblio/1041759},
journal = {Nuclear Instruments and Methods in Physics Research, Section A},
issn = {0168-9002},
number = 1,
volume = 649,
place = {United States},
year = {Sat Dec 31 00:00:00 EST 2011},
month = {Sat Dec 31 00:00:00 EST 2011}
}