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Table 2 Thickness variation of nano-oxide thin films in the MCP pores

From: Nano-oxide thin films deposited via atomic layer deposition on microchannel plates

Description

Thicknesses of coatings located in different locations of a pore (nm)

Average value (nm)

Uniformity (%)

Top part

Bottom part

Condition 1

91.3

92.2

92.4

91.5

86.6

92.1

92.9

93

91.5

2.26

Condition 2

102.2

106.4

106.5

105.2

105.9

107.1

105.7

107.4

105.8

1.53

Condition 3

122.1

124.2

125.6

121.5

122.9

121.0

121.1

121.6

122.5

1.34

Condition 4

247.1

251.4

252.5

247.7

246.9

252.2

245.9

250.7

249.3

1.07

  1. Uniformity = (Standard variation/Average variation) × 100%. Standard variation calculation formula: \( S=\sqrt{\frac{1}{N-1}{\displaystyle {\sum}_{i=1}^N{\left({X}_i-\overline{X}\right)}^2}} \); average variation calculation formula: \( \frac{X_1+{X}_2+\cdots {X}_N}{N} \).

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