Details: Liquid He
There are two ways of using liquid He at SPring-8.
1. In the case of liquid He provided by JASRI
Users can use the Liquid He by paying the cost according to the amount used as a part of the User Fee System.
|Liquid He||4,455 yen/liter (incl. tax)|
Please note that the unit price is subject to change without any prior notice. In case the unit price revised, the notice will be on the UI site.
For use in BL39XU and BL45XU is only available the liquid He provided by JASRI due to the beamline equipment constraints.
Calculation of the amount used and billing
The difference between the amounts of liquid He remaining in the container at the start and end of the experiment is calculated using the liquid He level monitor.
Start of experiment: The amount of liquid He remaining in the container is displayed on the level monitor. Enter the value (in 0.1 cm increments) in the Liquid He Consumption Form as the start value (some beamlines use different increments).
- Liquid Level Indicator LM-500 easy manual [PDF file]
- Liquid He Consumption Form [PDF file]
*BL39XU uses a different measuring instrument, so please use this form.
End of experiment: The amount of liquid He remaining in the container is displayed on the level monitor. Enter the value (in 0.1 cm increments) in the Liquid He Consumption Form as the end value (some beamlines use different increments).
Calculate the amount used: Subtract the end value from the start value to find the amount of liquid He used and enter the value in the Liquid He Consumption Form (in 0.1 L increments). To convert the value from cm (liquid level) to liters (volume), perform linear interpolation referring to the conversion table attached to the container.
Report the amount used: Report the total amount of liquid He used by filling out a Beamtime Report online (in 0.1 L increments). The fee is calculated by multiplying the unit price by the reported value (in 0.1 L increments) and rounding off to the nearest whole number (in yen).
JASRI will charge users a fee based on the total amount given in the Report.
2. Using liquid He prepared by project leaders
Project leaders (or agents entrusted by project leaders) can bring liquid He into SPring-8 and are responsible for returning its Dewar container. Prepare a Dewar container to be filled with liquid He after carefully checking its compatibility with the insertion port and the transfer tube at the side of the experimental setup.