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Billing Policies and Fees

User Responsibility

The Ross Flow Core re-opened in Sep. 2012.
Every user needs to submit your updated billing information, and have a policy orientation.  Expired account information may result in loss you privilege of using core service.



Self Analysis

Staff Operating










Aria IIu sorter




Flowjo workstation



FACSDiva workstation



CellQuest workstation



New user training:  $100

Cell sorting consultation: free

User will be billed the maximum of either time reserved or actually used on the instrument, rounded up to the nearest half hour.


Analyzers, including FACSCalibur and LSRII, are self-analysis instruments. Staff assistance can be requested by appointment with additional fee ($40/hour).


Instrument training is a requirement before anyone is able to independently work on the LSR-II and/or FACSCalibur.  Training session includes instruction on the operation of the instrument and the use of the software (FACSDiva or CellQuest).


Consultation for multi-color panel design and other flow cytometry questions are limited to our core users only.

Cancellation and Modification

Reservations must be canceled or modified 24 hours before the time scheduled. Failure to cancel will result in charges for the full time reserved. If cancellation is after the 24 hour cutoff, the user will still be billed.

Late Arrivals

Late arrivals interfere with subsequently scheduled activity; the user will be billed from the start of the time reserved to the actual finish time. The next user scheduled after a late arrival user has the right to start at their scheduled start time. The late arrival user should make provisions to rebook an open time slot.

Data Storage 

All data from all Cytometers (analyzers and Sorters) are removed weekly. We will not be responsible for storing any flow cytometry data or data generated on offline workstations.


Traveling for care?

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Whether crossing the country or the globe, we make it easy to access world-class care at Johns Hopkins.

U.S. 1-410-464-6713 (toll free)
International +1-410-614-6424



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