A circulating hydrogen ultra-high purification system for the MuCap experiment

V. A. Ganzha, P. A. Kravtsov, O. E. Maev, G. N. Schapkin, G. G. Semenchuk, V. A. Trofimov, A. A. Vasilyev, M. E. Vznuzdaev, S. M. Clayton, P. Kammel, B. Kiburg, M. Hildebrandt, C. Petitjean, T. I. Banks, B. Lauss

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The MuCap experiment is a high-precision measurement of the rate for the basic electroweak process of muon capture, μ-+p→n+νμ. The experimental approach is based on an active target consisting of a time projection chamber (TPC) operating with pure hydrogen gas. The hydrogen has to be kept extremely pure and at a stable pressure. A Circulating Hydrogen Ultra-high Purification System was designed at the Petersburg Nuclear Physics Institute (PNPI) to continuously clean the hydrogen from impurities. The system is based on an adsorption cryo pump to stimulate the hydrogen flow and on a cold adsorbent for the hydrogen cleaning. It was installed at the Paul Scherrer Institute (PSI) in 2004 and performed reliably during three experiment runs. During several months long operating periods the system maintained the hydrogen purity in the detector on the level of 20 ppb for moisture, which is the main contaminant, and of better than 7 and 5 ppb for nitrogen and oxygen, respectively. The pressure inside the TPC was stabilized to within 0.024% of 10 bar at a hydrogen flow rate of three standard liters per minute.

Original languageEnglish (US)
Pages (from-to)485-497
Number of pages13
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume578
Issue number3
DOIs
StatePublished - Aug 11 2007
Externally publishedYes

Fingerprint

purification
Purification
Hydrogen
hydrogen
Experiments
chambers
projection
Impurities
Nuclear physics
nuclear physics
adsorbents
moisture
Adsorbents
cleaning
contaminants
muons
Cleaning
purity
Moisture
flow velocity

Keywords

  • Circulation
  • Cleaning
  • Detector
  • Gas
  • Hydrogen
  • Mixture
  • Purification

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

A circulating hydrogen ultra-high purification system for the MuCap experiment. / Ganzha, V. A.; Kravtsov, P. A.; Maev, O. E.; Schapkin, G. N.; Semenchuk, G. G.; Trofimov, V. A.; Vasilyev, A. A.; Vznuzdaev, M. E.; Clayton, S. M.; Kammel, P.; Kiburg, B.; Hildebrandt, M.; Petitjean, C.; Banks, T. I.; Lauss, B.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 578, No. 3, 11.08.2007, p. 485-497.

Research output: Contribution to journalArticle

Ganzha, VA, Kravtsov, PA, Maev, OE, Schapkin, GN, Semenchuk, GG, Trofimov, VA, Vasilyev, AA, Vznuzdaev, ME, Clayton, SM, Kammel, P, Kiburg, B, Hildebrandt, M, Petitjean, C, Banks, TI & Lauss, B 2007, 'A circulating hydrogen ultra-high purification system for the MuCap experiment', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 578, no. 3, pp. 485-497. https://doi.org/10.1016/j.nima.2007.06.010
Ganzha, V. A. ; Kravtsov, P. A. ; Maev, O. E. ; Schapkin, G. N. ; Semenchuk, G. G. ; Trofimov, V. A. ; Vasilyev, A. A. ; Vznuzdaev, M. E. ; Clayton, S. M. ; Kammel, P. ; Kiburg, B. ; Hildebrandt, M. ; Petitjean, C. ; Banks, T. I. ; Lauss, B. / A circulating hydrogen ultra-high purification system for the MuCap experiment. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2007 ; Vol. 578, No. 3. pp. 485-497.
@article{298d122959a24323aa169121d3c1c82b,
title = "A circulating hydrogen ultra-high purification system for the MuCap experiment",
abstract = "The MuCap experiment is a high-precision measurement of the rate for the basic electroweak process of muon capture, μ-+p→n+νμ. The experimental approach is based on an active target consisting of a time projection chamber (TPC) operating with pure hydrogen gas. The hydrogen has to be kept extremely pure and at a stable pressure. A Circulating Hydrogen Ultra-high Purification System was designed at the Petersburg Nuclear Physics Institute (PNPI) to continuously clean the hydrogen from impurities. The system is based on an adsorption cryo pump to stimulate the hydrogen flow and on a cold adsorbent for the hydrogen cleaning. It was installed at the Paul Scherrer Institute (PSI) in 2004 and performed reliably during three experiment runs. During several months long operating periods the system maintained the hydrogen purity in the detector on the level of 20 ppb for moisture, which is the main contaminant, and of better than 7 and 5 ppb for nitrogen and oxygen, respectively. The pressure inside the TPC was stabilized to within 0.024{\%} of 10 bar at a hydrogen flow rate of three standard liters per minute.",
keywords = "Circulation, Cleaning, Detector, Gas, Hydrogen, Mixture, Purification",
author = "Ganzha, {V. A.} and Kravtsov, {P. A.} and Maev, {O. E.} and Schapkin, {G. N.} and Semenchuk, {G. G.} and Trofimov, {V. A.} and Vasilyev, {A. A.} and Vznuzdaev, {M. E.} and Clayton, {S. M.} and P. Kammel and B. Kiburg and M. Hildebrandt and C. Petitjean and Banks, {T. I.} and B. Lauss",
year = "2007",
month = "8",
day = "11",
doi = "10.1016/j.nima.2007.06.010",
language = "English (US)",
volume = "578",
pages = "485--497",
journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - A circulating hydrogen ultra-high purification system for the MuCap experiment

AU - Ganzha, V. A.

AU - Kravtsov, P. A.

AU - Maev, O. E.

AU - Schapkin, G. N.

AU - Semenchuk, G. G.

AU - Trofimov, V. A.

AU - Vasilyev, A. A.

AU - Vznuzdaev, M. E.

AU - Clayton, S. M.

AU - Kammel, P.

AU - Kiburg, B.

AU - Hildebrandt, M.

AU - Petitjean, C.

AU - Banks, T. I.

AU - Lauss, B.

PY - 2007/8/11

Y1 - 2007/8/11

N2 - The MuCap experiment is a high-precision measurement of the rate for the basic electroweak process of muon capture, μ-+p→n+νμ. The experimental approach is based on an active target consisting of a time projection chamber (TPC) operating with pure hydrogen gas. The hydrogen has to be kept extremely pure and at a stable pressure. A Circulating Hydrogen Ultra-high Purification System was designed at the Petersburg Nuclear Physics Institute (PNPI) to continuously clean the hydrogen from impurities. The system is based on an adsorption cryo pump to stimulate the hydrogen flow and on a cold adsorbent for the hydrogen cleaning. It was installed at the Paul Scherrer Institute (PSI) in 2004 and performed reliably during three experiment runs. During several months long operating periods the system maintained the hydrogen purity in the detector on the level of 20 ppb for moisture, which is the main contaminant, and of better than 7 and 5 ppb for nitrogen and oxygen, respectively. The pressure inside the TPC was stabilized to within 0.024% of 10 bar at a hydrogen flow rate of three standard liters per minute.

AB - The MuCap experiment is a high-precision measurement of the rate for the basic electroweak process of muon capture, μ-+p→n+νμ. The experimental approach is based on an active target consisting of a time projection chamber (TPC) operating with pure hydrogen gas. The hydrogen has to be kept extremely pure and at a stable pressure. A Circulating Hydrogen Ultra-high Purification System was designed at the Petersburg Nuclear Physics Institute (PNPI) to continuously clean the hydrogen from impurities. The system is based on an adsorption cryo pump to stimulate the hydrogen flow and on a cold adsorbent for the hydrogen cleaning. It was installed at the Paul Scherrer Institute (PSI) in 2004 and performed reliably during three experiment runs. During several months long operating periods the system maintained the hydrogen purity in the detector on the level of 20 ppb for moisture, which is the main contaminant, and of better than 7 and 5 ppb for nitrogen and oxygen, respectively. The pressure inside the TPC was stabilized to within 0.024% of 10 bar at a hydrogen flow rate of three standard liters per minute.

KW - Circulation

KW - Cleaning

KW - Detector

KW - Gas

KW - Hydrogen

KW - Mixture

KW - Purification

UR - http://www.scopus.com/inward/record.url?scp=34547127913&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547127913&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2007.06.010

DO - 10.1016/j.nima.2007.06.010

M3 - Article

AN - SCOPUS:34547127913

VL - 578

SP - 485

EP - 497

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

IS - 3

ER -