Product ID: I2S-5, I2S-10
To create the permanently sealed starved cell, the cell is evacuated and cold-finger filled with Iodine is brought to the desired vapor pressure (cold-finger operating temperature). The stem between the cold-finger and cell is then permanently sealed with a torch, isolating the Iodine in the cell body and fixing the number density. The cell is then operated 10-20 °C above the cold-finger set temperature and the Iodine in the cell is a super-heated vapor with a set number density. The result is a molecular cell with a very stable absorption spectra.

Permanently sealed iodine-vapor cells are 3-in.-dia, 5-in.-long or 10-in.-long Pyrex cells. These cells are manufactured with a prescribed iodine partial pressure (specified by user at time of order). In addition, the transitions can be pressure broadened with nitrogen partial pressure (specified at time of order).

Standard Sealed Unit Includes:
• 1. Pyrex cell with optical-grade Pyrex windows.
• 2. Anodized-aluminum housing with post-mounting surface and 1/4 -20 threaded holes.
• 3. Heating mat and one type-K thermocouple.
• 4. Insulation to limit heat transfer to aluminum housing.
• 5. Absorption scan

SPECIFICATIONS FOR I2S-5 & I2S-10

Length	125mm, 250mm
Diameter	76mm
Housing	Anodized Aluminum
Mounting	¼”-20 Threaded
Maximum Operating Temperature	130 ˚C
Thermocouple	Type T
Set Point	30 ˚C – 50 ˚C
Warranty	1 year
ECCN	EAR99