THERMAL DESORPTION MEASUREMENTS OF HYDROGEN-ISOTOPE RETENTION IN THE ALCATOR-A TOKAMAK.

A. M. Razdow; E. S. Marmar; S. A. Cohen; H. F. Dylla

doi:10.1116/1.570421

THERMAL DESORPTION MEASUREMENTS OF HYDROGEN-ISOTOPE RETENTION IN THE ALCATOR-A TOKAMAK.

A. M. Razdow, E. S. Marmar, S. A. Cohen, H. F. Dylla

Research output: Contribution to journal › Conference article › peer-review

Abstract

Results are given for deuterium retention measurements in type 304 stainless steel exposed in the edge plasma of the Alcator-A tokamak. Stainless steel samples, at 300 K, with surface conditions characterized by Auger electron spectroscopy, were introduced into the limiter shadow region for exposure to deuterium plasmas, and then withdrawn into an appended UHV chamber for thermal desorption measurements. For unoxidized samples exposed at the vacuum vessel wall radius, 1 multiplied by 10**1**5 D cm** minus **2 was retained after exposure to high density discharges. Exposure to consecutive series of N discharges produced retention proportional to N** one-half .

Original language	English (US)
Pages (from-to)	306-309
Number of pages	4
Journal	Journal of vacuum science & technology
Volume	17
Issue number	1
DOIs	https://doi.org/10.1116/1.570421
State	Published - 1979
Event	Proc of the Natl Symp of the Am Vac Soc, 26th - New York, NY, USA Duration: Oct 1 1979 → Oct 5 1979

All Science Journal Classification (ASJC) codes

General Engineering

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10.1116/1.570421

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title = "THERMAL DESORPTION MEASUREMENTS OF HYDROGEN-ISOTOPE RETENTION IN THE ALCATOR-A TOKAMAK.",

abstract = "Results are given for deuterium retention measurements in type 304 stainless steel exposed in the edge plasma of the Alcator-A tokamak. Stainless steel samples, at 300 K, with surface conditions characterized by Auger electron spectroscopy, were introduced into the limiter shadow region for exposure to deuterium plasmas, and then withdrawn into an appended UHV chamber for thermal desorption measurements. For unoxidized samples exposed at the vacuum vessel wall radius, 1 multiplied by 10**1**5 D cm** minus **2 was retained after exposure to high density discharges. Exposure to consecutive series of N discharges produced retention proportional to N** one-half .",

author = "Razdow, {A. M.} and Marmar, {E. S.} and Cohen, {S. A.} and Dylla, {H. F.}",

year = "1979",

doi = "10.1116/1.570421",

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journal = "Journal of vacuum science & technology",

issn = "0022-5355",

publisher = "American Institute of Physics Publising LLC",

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note = "Proc of the Natl Symp of the Am Vac Soc, 26th ; Conference date: 01-10-1979 Through 05-10-1979",

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T1 - THERMAL DESORPTION MEASUREMENTS OF HYDROGEN-ISOTOPE RETENTION IN THE ALCATOR-A TOKAMAK.

AU - Razdow, A. M.

AU - Marmar, E. S.

AU - Cohen, S. A.

AU - Dylla, H. F.

PY - 1979

Y1 - 1979

N2 - Results are given for deuterium retention measurements in type 304 stainless steel exposed in the edge plasma of the Alcator-A tokamak. Stainless steel samples, at 300 K, with surface conditions characterized by Auger electron spectroscopy, were introduced into the limiter shadow region for exposure to deuterium plasmas, and then withdrawn into an appended UHV chamber for thermal desorption measurements. For unoxidized samples exposed at the vacuum vessel wall radius, 1 multiplied by 10**1**5 D cm** minus **2 was retained after exposure to high density discharges. Exposure to consecutive series of N discharges produced retention proportional to N** one-half .

AB - Results are given for deuterium retention measurements in type 304 stainless steel exposed in the edge plasma of the Alcator-A tokamak. Stainless steel samples, at 300 K, with surface conditions characterized by Auger electron spectroscopy, were introduced into the limiter shadow region for exposure to deuterium plasmas, and then withdrawn into an appended UHV chamber for thermal desorption measurements. For unoxidized samples exposed at the vacuum vessel wall radius, 1 multiplied by 10**1**5 D cm** minus **2 was retained after exposure to high density discharges. Exposure to consecutive series of N discharges produced retention proportional to N** one-half .

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JF - Journal of vacuum science & technology

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T2 - Proc of the Natl Symp of the Am Vac Soc, 26th

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THERMAL DESORPTION MEASUREMENTS OF HYDROGEN-ISOTOPE RETENTION IN THE ALCATOR-A TOKAMAK.

Abstract

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