Details
| Original language | English |
|---|---|
| Article number | 103310 |
| Number of pages | 12 |
| Journal | Review of scientific instruments |
| Volume | 94 |
| Issue number | 10 |
| Early online date | 24 Oct 2023 |
| Publication status | Published - Oct 2023 |
Abstract
We present the design and characterization of a cryogenic window based on an ultra-thin aluminized biaxially oriented polyethylene terephthalate foil at T < 10 K, which can withstand a pressure difference larger than 1 bar at a leak rate < 1 × 1 0 − 9 mbar l/s. Its thickness of ∼1.7 μm makes it transparent to various types of particles over a broad energy range. To optimize the transfer of 100 keV antiprotons through the window, we tested the degrading properties of different aluminum coated polymer foils of thicknesses between 900 and 2160 nm, concluding that 1760 nm foil decelerates antiprotons to an average energy of 5 keV. We have also explicitly studied the permeation as a function of coating thickness and temperature and have performed extensive thermal and mechanical endurance and stress tests. Our final design integrated into the experiment has an effective open surface consisting of seven holes with a diameter of 1 mm and will transmit up to 2.5% of the injected 100 keV antiproton beam delivered by the Antiproton Decelerator and Extra Low ENergy Antiproton ring facility of CERN.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
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In: Review of scientific instruments, Vol. 94, No. 10, 103310, 10.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Ultra-thin polymer foil cryogenic window for antiproton deceleration and storage
AU - Latacz, B. M.
AU - Arndt, B. P.
AU - Devlin, J. A.
AU - Erlewein, S. R.
AU - Fleck, M.
AU - Jäger, J. I.
AU - Micke, P.
AU - Umbrazunas, G.
AU - Wursten, E.
AU - Abbass, F.
AU - Schweitzer, D.
AU - Wiesinger, M.
AU - Will, C.
AU - Yildiz, H.
AU - Blaum, K.
AU - Matsuda, Y.
AU - Mooser, A.
AU - Ospelkaus, C.
AU - Smorra, C.
AU - Sótér, A.
AU - Quint, W.
AU - Walz, J.
AU - Yamazaki, Y.
AU - Ulmer, S.
N1 - Funding Information: We acknowledge financial support by RIKEN, the Max-Planck Society, CERN, the European Union (FunI-832848, STEP-852818), CRC 1227 “DQ-mat” (DFG 274200144), the Cluster of Excellence “Quantum Frontiers” (DFG 390837967), the Wolfgang Gentner Program (Grant No. 13E18CHA), IMPRS-QD, and the Helmholtz-Gemeinschaft. This work was supported by the Max-Planck, RIKEN, PTB-Center for Time, Constants, and Fundamental Symmetries (C-TCFS).
PY - 2023/10
Y1 - 2023/10
N2 - We present the design and characterization of a cryogenic window based on an ultra-thin aluminized biaxially oriented polyethylene terephthalate foil at T < 10 K, which can withstand a pressure difference larger than 1 bar at a leak rate < 1 × 1 0 − 9 mbar l/s. Its thickness of ∼1.7 μm makes it transparent to various types of particles over a broad energy range. To optimize the transfer of 100 keV antiprotons through the window, we tested the degrading properties of different aluminum coated polymer foils of thicknesses between 900 and 2160 nm, concluding that 1760 nm foil decelerates antiprotons to an average energy of 5 keV. We have also explicitly studied the permeation as a function of coating thickness and temperature and have performed extensive thermal and mechanical endurance and stress tests. Our final design integrated into the experiment has an effective open surface consisting of seven holes with a diameter of 1 mm and will transmit up to 2.5% of the injected 100 keV antiproton beam delivered by the Antiproton Decelerator and Extra Low ENergy Antiproton ring facility of CERN.
AB - We present the design and characterization of a cryogenic window based on an ultra-thin aluminized biaxially oriented polyethylene terephthalate foil at T < 10 K, which can withstand a pressure difference larger than 1 bar at a leak rate < 1 × 1 0 − 9 mbar l/s. Its thickness of ∼1.7 μm makes it transparent to various types of particles over a broad energy range. To optimize the transfer of 100 keV antiprotons through the window, we tested the degrading properties of different aluminum coated polymer foils of thicknesses between 900 and 2160 nm, concluding that 1760 nm foil decelerates antiprotons to an average energy of 5 keV. We have also explicitly studied the permeation as a function of coating thickness and temperature and have performed extensive thermal and mechanical endurance and stress tests. Our final design integrated into the experiment has an effective open surface consisting of seven holes with a diameter of 1 mm and will transmit up to 2.5% of the injected 100 keV antiproton beam delivered by the Antiproton Decelerator and Extra Low ENergy Antiproton ring facility of CERN.
UR - http://www.scopus.com/inward/record.url?scp=85175231071&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2308.1287
DO - 10.48550/arXiv.2308.1287
M3 - Article
C2 - 37874231
AN - SCOPUS:85175231071
VL - 94
JO - Review of scientific instruments
JF - Review of scientific instruments
SN - 0034-6748
IS - 10
M1 - 103310
ER -