Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p213
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 611054–613767

fast image gating (shutter) time of 50 ns or less specially designed for cameras specified by 6A203.c.1.;
3.  Electro‑optical shuttering devices (Kerr or Pockels cells) with a fast image gating (shutter) time of 50 ns or less;
4.  Plug‑ins specially designed for use with cameras which have modular structures and that enable the performance specifications in 6A203.c.1.
Technical Note:
High speed single frame cameras can be used alone to produce a single image of a dynamic event, or several such cameras can be combined in a sequentially‑triggered system to produce multiple images of an event.
6. A. 204. Radiation‑hardened TV cameras, or lenses thereof, specially designed or rated as radiation hardened to withstand a total radiation dose greater than 5 x 104 'Gy (silicon)' without operational degradation.
Technical Note:
In 6A204, the term 'Gy (silicon)' refers to the energy in Joules per kilogram absorbed by an unshielded silicon sample when exposed to ionising radiation.
6. A. 205. "Lasers", "laser" amplifiers and oscillators, other than those specified by 0B001.g.5., 0B001.h.6. and 6A005; as follows:
N.B.: For copper vapour lasers, see 6A005.b.
a. Argon ion "lasers" having both of the following characteristics:
1. Operating at wavelengths between 400 nm and 515 nm; and
2. An average output power greater than 40 W;
b. Tunable pulsed single‑mode dye laser oscillators having all of the following characteristics:
1. Operating at wavelengths between 300 nm and 800 nm;
2. An average output power greater than 1 W;
3. A repetition rate greater than 1 kHz; and
6. A. 205. b. 4. Pulse width less than 100 ns;
6. A. 205. c. Tunable pulsed dye laser amplifiers and oscillators, having all of the following characteristics:
1. Operating at wavelengths between 300 nm and 800 nm;
2. An average output power greater than 30 W;
3. A repetition rate greater than 1 kHz; and
4. Pulse width less than 100 ns;
Note: 6A205.c. does not apply to single mode oscillators.
6. A. 205. d. Pulsed carbon dioxide "lasers" having all of the following characteristics:
1. Operating at wavelengths between 9,000 nm and 11,000 nm;
2. A repetition rate greater than 250 Hz;
3. An average output power greater than 500 W; and
4. Pulse width of less than 200 ns;
6. A. 205. e. Para‑hydrogen Raman shifters designed to operate at 16 micrometre output wavelength and at a repetition rate greater than 250 Hz;
6. A. 205. f. Neodymium‑doped (other than glass) "lasers" with an output wavelength between 1000 and 1100 nm having either of the following:
1. Pulse‑excited and Q‑switched with a pulse duration equal to or more than 1 ns, and having either of the following:
a. A single–transverse mode output with an average output