Interferometrically stable, enclosed, spinning sample cell for spectroscopic experiments on air-sensitive samples
Baranov, Dmitry LU
; Hill, Robert J.
; Ryu, Jisu
; Park, Samuel D.
; Huerta-Viga, Adriana
; Carollo, Alexa R.
LU
and Jonas, David M.
(2017)
In Review of Scientific Instruments
88(1).
- Abstract
In experiments with high photon flux, it is necessary to rapidly remove the sample from the beam and to delay re-excitation until the sample has returned to equilibrium. Rapid and complete sample exchange has been a challenge for air-sensitive samples and for vibration-sensitive experiments. Here, a compact spinning sample cell for air and moisture sensitive liquid and thin film samples is described. The principal parts of the cell are a copper gasket sealed enclosure, a 2.5 in. hard disk drive motor, and a reusable, chemically inert glass sandwich cell. The enclosure provides an oxygen and water free environment at the 1 ppm level, as demonstrated by multi-day tests with sodium benzophenone ketyl radical. Inside the enclosure, the... (More)
In experiments with high photon flux, it is necessary to rapidly remove the sample from the beam and to delay re-excitation until the sample has returned to equilibrium. Rapid and complete sample exchange has been a challenge for air-sensitive samples and for vibration-sensitive experiments. Here, a compact spinning sample cell for air and moisture sensitive liquid and thin film samples is described. The principal parts of the cell are a copper gasket sealed enclosure, a 2.5 in. hard disk drive motor, and a reusable, chemically inert glass sandwich cell. The enclosure provides an oxygen and water free environment at the 1 ppm level, as demonstrated by multi-day tests with sodium benzophenone ketyl radical. Inside the enclosure, the glass sandwich cell spins at ≈70 Hz to generate tangential speeds of 7-12 m/s that enable complete sample exchange at 100 kHz repetition rates. The spinning cell is acoustically silent and compatible with a ±1 nm rms displacement stability interferometer. In order to enable the use of the spinning cell, we discuss centrifugation and how to prevent it, introduce the cycle-averaged resampling rate to characterize repetitive excitation, and develop a figure of merit for a long-lived photoproduct buildup.
(Less)
- author
- Baranov, Dmitry
LU
; Hill, Robert J.
; Ryu, Jisu
; Park, Samuel D.
; Huerta-Viga, Adriana
; Carollo, Alexa R.
LU
and Jonas, David M.
- publishing date
- 2017-01-01
- type
- Contribution to journal
- publication status
- published
- in
- Review of Scientific Instruments
- volume
- 88
- issue
- 1
- article number
- 014101
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- pmid:28147656
- scopus:85009774794
- ISSN
- 0034-6748
- DOI
- 10.1063/1.4973666
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2017 Author(s).
- id
- 39fd323c-3bbd-43d9-b6fe-7142321646a0
- date added to LUP
- 2023-01-17 13:56:12
- date last changed
- 2024-03-06 07:15:30
@article{39fd323c-3bbd-43d9-b6fe-7142321646a0,
abstract = {{<p>In experiments with high photon flux, it is necessary to rapidly remove the sample from the beam and to delay re-excitation until the sample has returned to equilibrium. Rapid and complete sample exchange has been a challenge for air-sensitive samples and for vibration-sensitive experiments. Here, a compact spinning sample cell for air and moisture sensitive liquid and thin film samples is described. The principal parts of the cell are a copper gasket sealed enclosure, a 2.5 in. hard disk drive motor, and a reusable, chemically inert glass sandwich cell. The enclosure provides an oxygen and water free environment at the 1 ppm level, as demonstrated by multi-day tests with sodium benzophenone ketyl radical. Inside the enclosure, the glass sandwich cell spins at ≈70 Hz to generate tangential speeds of 7-12 m/s that enable complete sample exchange at 100 kHz repetition rates. The spinning cell is acoustically silent and compatible with a ±1 nm rms displacement stability interferometer. In order to enable the use of the spinning cell, we discuss centrifugation and how to prevent it, introduce the cycle-averaged resampling rate to characterize repetitive excitation, and develop a figure of merit for a long-lived photoproduct buildup.</p>}},
author = {{Baranov, Dmitry and Hill, Robert J. and Ryu, Jisu and Park, Samuel D. and Huerta-Viga, Adriana and Carollo, Alexa R. and Jonas, David M.}},
issn = {{0034-6748}},
language = {{eng}},
month = {{01}},
number = {{1}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Review of Scientific Instruments}},
title = {{Interferometrically stable, enclosed, spinning sample cell for spectroscopic experiments on air-sensitive samples}},
url = {{http://dx.doi.org/10.1063/1.4973666}},
doi = {{10.1063/1.4973666}},
volume = {{88}},
year = {{2017}},
}