The knowledge of the detection efficiency of the microchannel plate is of upmost importance in many applications using this type of particle detector. However, few attempts have been made to measure the absolute value of the detection efficiency of microchannel plates. In this article, a new way of accurately measuring the absolute value of the detection efficiency is described. When particles hit the detector in the interchannel web of the microchannel plate, secondary electrons are generated. These secondary electrons can be returned to neighboring channels by means of an electric field applied at the front face of the detector. The resulting increase in the detection efficiency has been quantified using the absolute measurement of the detection efficiency. It is found that the value of the returning field has to be carefully set in order to prevent detection artifacts that may lead to a wrong estimation of the detection efficiency. In the best conditions, the detection efficiency increase reaches 40%.

Topics
Surface collisions, Microchannel plate detectors, Radiation detectors
1.
R. S.
Gao
,
P. S.
Gibner
,
J. H.
Newman
,
K. A.
Smith
, and
R. F.
Stebbings
,
Rev. Sci. Instrum.
55
,
1756
(
1984
).
Crossref
Search ADS
 
2.
A.
Brunelle
,
P.
Chaurand
,
S.
Della-Negra
,
Y.
Le Beyec
, and
G. B.
Baptista
,
Int. J. Mass Spectrom. Ion Processes
126
,
65
(
1993
).
Crossref
Search ADS
 
3.
B.
Brehm
,
J.
Grosser
,
T.
Ruscheinski
, and
M.
Zimmer
,
Meas. Sci. Technol.
6
,
953
(
1995
).
Crossref
Search ADS
 
4.
C. A.
Keller
and
B. H.
Cooper
,
Rev. Sci. Instrum.
67
,
2760
(
1996
).
Crossref
Search ADS
 
5.
H. O.
Funsten
,
D. M.
Suszcynsky
,
R. W.
Harper
,
J. E.
Nordholt
, and
B. L.
Barraclough
,
Rev. Sci. Instrum.
67
,
145
(
1996
).
Crossref
Search ADS
 
6.
J.
Oberheide
,
P.
Wilhelms
, and
M.
Zimmer
,
Meas. Sci. Technol.
8
,
351
(
1997
).
Crossref
Search ADS
 
7.
T. M.
Stephen
and
B. L.
Peko
,
Rev. Sci. Instrum.
71
,
1355
(
2000
).
Crossref
Search ADS
 
8.
A.
Cerezo
,
T. J.
Godfrey
,
J. M.
Hyde
,
S. J.
Sijbrandij
, and
G. D. W.
Smith
,
Appl. Surf. Sci.
76
,
374
(
1994
).
9.
D.
Blavette
,
A.
Bostel
,
J. M.
Sarrau
,
B.
Deconihout
, and
A.
Menand
,
Nature (London)
363
,
432
(
1993
).
Crossref
Search ADS
 
10.
D.
Blavette
,
B.
Deconihout
,
A.
Bostel
,
J. M.
Sarrau
,
M.
Bouet
, and
A.
Menand
,
Rev. Sci. Instrum.
64
,
2911
(
1993
).
Crossref
Search ADS
 
11.
B.
Deconihout
,
L.
Renaud
,
G.
Da Costa
,
M.
Bouet
,
A.
Bostel
, and
D.
Blavette
,
Ultramicroscopy
36
,
253
(
1998
).
12.
J. A.
Panitz
and
J. A.
Foesch
,
Rev. Sci. Instrum.
47
,
44
(
1976
).
Crossref
Search ADS
 
13.
Y.
Hasegawa
,
T.
Hashizume
,
T.
Sakurai
, and
Y.
Mizushima
,
J. Phys. (France)
47
,
509
(
1986
).
14.
T.
Sakurai
and
T.
Hashizume
,
Rev. Sci. Instrum.
57
,
236
(
1986
).
Crossref
Search ADS
 
15.
R. C.
Taylor
,
M. C.
Hettrick
, and
R. F.
Malina
,
Rev. Sci. Instrum.
54
,
171
(
1983
).
Crossref
Search ADS
 
16.
B.
Deconihout
,
P.
Gerard
,
M.
Bouet
, and
A.
Bostel
,
Appl. Surf. Sci.
94
,
422
(
1996
).
17.
S. J.
Sijbrandij
,
A.
Cerezo
,
B.
Deconihout
,
T. J.
Godfrey
, and
G. D. W.
Smith
,
J. Phys. IV
6
,
297
(
1996
).
18.
D. H.
Crandall
,
J. A.
Ray
, and
C.
Cisneros
,
Rev. Sci. Instrum.
46
,
562
(
1975
).
Crossref
Search ADS
 
19.
L.
Lundin
and
U.
Rolander
,
Appl. Surf. Sci.
67
,
459
(
1993
).
Crossref
Search ADS
 
20.
A.
Cerezo
,
T. J.
Godfrey
,
S. J.
Sijbrandij
,
G. D. W.
Smith
, and
P. J.
Warren
,
Rev. Sci. Instrum.
69
,
49
(
1998
).
Crossref
Search ADS
 
21.
D.
Blavette
,
B.
Deconihout
,
S.
Chamberland
, and
A.
Bostel
,
Ultramicroscopy
70
,
115
(
1998
).
Crossref
Search ADS
 
22.
F.
Vurpillot
,
G.
Da Costa
,
A.
Menand
, and
D.
Blavette
,
J. Microsc.
203
,
1
(
2001
).
Crossref
Search ADS
 
23.
P.
Warren
,
A.
Cerezo
, and
G. D. W.
Smith
,
Ultramicroscopy
73
,
261
(
1998
).
Crossref
Search ADS
 
24.
M. K. Miller, Atom Probe Tomography: Analysis at the Atomic Level (Kluwer, Dordrecht, 2000).
25.
L. Renaud, Ph.D. thesis, Université de Rouen, 2001.
26.
R.
Moshammer
 and
R.
Matthus
,
J. Phys. (France)
50
,
111
(
1989
).
27.
R. Moshamer, Particles Induced Electron Emission II, Springer Tracts in Modern Physics (Springer, Berlin, 1991), Vol. 123.
28.
A. J.
Guest
,
Acta Electron.
14
,
79
(
1971
).
29.
E. A. Kurz, American Laboratory, March 1979.
30.
F.
Bordoni
,
Nucl. Instrum. Methods Phys. Res. A
97
,
405
(
1971
).
Crossref
Search ADS
 
31.
G.
Slodzian
,
M.
Chaintreau
,
R.
Dennebouy
, and
A.
Rousse
,
Eur. Phys. J.: Appl. Phys.
14
,
199
(
2001
).
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