Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p187
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 542436–545206

OPTICAL SENSORS
6. A. 002. Optical sensors or equipment and components therefor, as follows:
N.B.: SEE ALSO 6A102.
6. A. 002. a. Optical detectors as follows:
1. "Space‑qualified" solid‑state detectors as follows:
Note: For the purpose of 6A002.a.1., solid‑state detectors include "focal plane arrays".
a. "Space‑qualified" solid‑state detectors having all of the following:
1. A peak response in the wavelength range exceeding 10 nm but not exceeding 300 nm; and
2. A response of less than 0.1% relative to the peak response at a wavelength exceeding 400 nm;
b. "Space‑qualified" solid‑state detectors having all of the following:
1. A peak response in the wavelength range exceeding 900 nm but not exceeding 1,200 nm; and
2. A response "time constant" of 95 ns or less;
6. A. 002. a. 1. c. "Space‑qualified" solid‑state detectors having a peak response in the wavelength range exceeding 1,200 nm but not exceeding 30,000 nm;
d. "Space‑qualified" "focal plane arrays" having more than 2,048 elements per array and having a peak response in the wavelength range exceeding 300 nm but not exceeding 900 nm.
6. A. 002. a. 2. Image intensifier tubes and specially designed components therefor, as follows:
Note: 6A002.a.2. does not apply to non‑imaging photomultiplier tubes having an electron sensing device in the vacuum space limited solely to any of the following:
a. A single metal anode; or
b. Metal anodes with a centre to centre spacing greater than 500 µm.
Technical Note:
For the purposes of 6A002.a.2., 'charge multiplication' is a form of electronic image amplification and is defined as the generation of charge carriers as a result of an impact ionization gain process. 'Charge multiplication' sensors may take the form of an image intensifier tube, solid state detector or "focal plane array".
6. A. 002. a. 2. a. Image intensifier tubes having all of the following:
1. A peak response in the wavelength range exceeding 400 nm but not exceeding 1,050 nm;
2. Electron image amplification using any of the following:
a. A microchannel plate with a hole pitch (centre‑to‑centre spacing) of 12 µm or less; or
b. An electron sensing device with a non‑binned pixel pitch of 500 µm or less, specially designed or modified to achieve 'charge multiplication' other than by a microchannel plate; and
3. Any of the following photocathodes:
a. Multialkali photocathodes (e.g., S‑20 and S‑25) having a luminous sensitivity exceeding 350 µA/lm;
b. GaAs or GaInAs photocathodes; or
c. Other "III/V compound" semiconductor photocathodes having a maximum "radiant sensitivity" exceeding 10 mA/W;
6. A. 002. a. 2. b. Image intensifier tubes having all of the following:
1. A peak response in the wavelength range exceeding 1,050 nm but not exceeding 1,800 nm;

6. A. 002. a. 2.