GRETINA Users Group Charter


1.     Definition and Purpose:

The GRETINA Users Group is an organization of scientists interested in using GRETINA for scientific research. The purposes of this association are: 

(a): To provide a formal channel for the exchange of information and advice between the scientists who use GRETINA and (i) the GRETINA Technical Lead, (ii) the GRETINA Advisory Committee (GAC) and (iii) the management of the host laboratory where GRETINA is or will be installed. 

(b): To encourage and support further developments of the capabilities of GRETINA, in concert with the GRETINA Technical Lead and Advisory Committee,  by continued research on gamma-ray detectors and by promoting the development of auxiliary equipment which enhances the physics that can be done with GRETINA. 

(c): To provide a means for the exchange of information and advice among the GRETINA users and to facilitate collaboration of interested users in experiments, aspects of data analysis, technical developments or the operation of GRETINA. 

(d): To promote GRETINA as a research tool within the Nuclear Physics community at large and with the funding agencies. 

2. Membership: 

The membership of the GRETINA Users' Group is open to all scientists interested in the research and/or technical programs associated with GRETINA. Following the completion of the original membership list, new members will be added by action of the Executive Committee of the Users' Group upon receipt of a written request. The updated list of the membership is held by the Chair of the Executive Committee of the GRETINA Users' Group. 

3. Executive Committee: 

An Executive Committee will conduct the day-to-day business of the GRETINA Users' Group. This committee consists of five voting members. Four will be selected from the GRETINA Users' Group membership.  The members of the Executive Committee must be active users of GRETINA, and no two voting members can be from the same institution. A designated representative of the GAC will also serve as a voting member of the Executive Committee. A designated representative from the Lead Institution (LBNL) will be a non-voting ex-officio member of the GRETINA Executive Committee. 

New member(s) of the Executive Committee will be elected annually by members of the Users' Group by written ballot and shall take office on February 1. The normal term of office is two years.

The Executive Committee will be to propose a slate of at least three candidates for the open elected position(s) on the Executive Committee. Written nominations signed by at least seven members of the Users' Group from a minimum of three different institutions shall also be accepted. Current members of the Executive Committee in general should not be nominated for immediate re-election. 

The Executive Committee will select one of its members to serve as Chair and another to serve as Secretary. Neither the Chair nor the Secretary will be associated with the laboratory where GRETINA is housed at that particular time. The term of the Chair is one year. 

If a vacancy arises on the Executive Committee, the remaining Committee members will select a member of the GRETINA Users' Group to serve out the unexpired term. In the event that the Chair's or the Secretary's position becomes vacant, the members of the Committee shall first select a new member as described above, and then proceed with an election to the vacated position. The newly selected Committee member is not a candidate to the Chair's or Secretary's position. 

4. Procedures: 

(a): The Executive Committee will meet at least once each quarter of any given year. The minimal quorum for all meetings of the Executive Committee is three members. 

(b): The Executive Committee may, on its own initiative, and shall, upon written request of a minimum of 10 members of the GRETINA Users' Group from a minimum of three different institutions, submit questions for consideration to the full membership. Issues raised by a majority of those present at an official meeting of the GRETINA Users' Group must also be presented for consideration to the full membership. 

(c): The Users' Group shall meet at least once a year at a time and place designated by the GRETINA Executive Committee. In addition, the Executive Committee shall organize, and/or assist the GAC in organizing related workshops. 

(d): The Executive Committee will have regular meetings with the GRETINA Technical Lead and with the GAC. 

(e): The Executive Committee will confer with the GRETINA Technical Lead and with the Scientific Director (or designee) of the host facility on the timely distribution of information concerning the use of GRETINA and its scientific program. As the GRETINA Users' Group represents only a subset of all the users at the host facility where GRETINA is located, the Executive Committee will make every effort to maintain excellent relations with the Users' group at the facility.


(f): The elections to the Executive Committee will be organized by the Secretary of the Executive Committee. 

5. Amendments: 

Amendments to this Charter will be accomplished by a two-thirds majority vote of ballots cast by the membership at large. Proposed changes may be submitted by majority vote at a meeting or workshop, or by petition to the Executive Committee from a minimum of 10 members of the GRETINA Users' Group from a minimum of three different institutions.