This Erratum is presented to correct the typing mistakes in Equations (9), (11), and (12) of [Rev. Sci. Instrum. 87, 02A508 (2016)].

In our paper1 we have found the minor errors of typing. The first error is found in Equation (9), placed on page 02A508-2. The value “vTe” in denominator should be written in 2nd power: “vTe2.” Finally, Equation (9) must look as

(9)

Another error is the lost symbol “−” in Equation (11) as well as in Equation (12), placed on pages 02A508-2 and 02A508-3, respectively. The symbols of minus should be placed before the right parts in both Equations, so that Equation (11) must look as

(11)

Equation (12) must look as

(12)
1.
H. Y.
Barminova
and
A. S.
Chikhachev
,
Rev. Sci. Instrum.
87
,
02A508
(
2016
).